问:
How can I get voice control like my Moto X 2nd Gen had?
My last phone was a Moto X 2nd Generation. The Moto Voice app was great - I could say "Away Team to Voyager (my custom command phrase) - what's up?" and it would read me all current notifications without unlocking, just like if I were looking at the phone. I could also unlock the phone to do Google searches and other stuff by saying my PIN if no one else was around. But, other features were pretty limited because the assistant AI wasn't that great in 5.1.

Just bought a shiny new Moto X5 with Android 7.0, and while Google Assistant has improved, the new Moto Voice app is crap. There's no command phrase at all - granted that the customization was aesthetic, but having no interactive activation at all means you're limited to a dozen "show me" commands that A. are already covered by Google Assistant and B. only display the info on the screen - and if I were holding the phone and looking at it, I wouldn't need voice control!

I got this thing in large part to use as assistive technology, but it seems needlessly throttled in that department; as far as I can tell, the built in "OK Google" can't consistently unlock the phone, read notifications, or otherwise enable a truly hands-free experience.

Is there some way to get the "real" Moto Voice app back? (When I look at the entry in the App Store, it says "installed", even though the functionality is a mockery of what's shown in the video.) Failing that, is there some other way to read notifications out loud, and/or use a reasonable set of controls without touching the phone to unlock it? (Bonus points if there's also a way to bring back the "custom command phrase" functionality.)


问:
Change system font
My phone has near stock Android Nougat 7.1.1 and it's rooted. I'm trying to figure out how change default font in system. There's no option to do this in system preferences. I know that fonts are kept in /system/font directory. In which config file in system fonts preferences are kept? I'm not interested in automatic changes made by app like Font Fix etc.. I want to change it by myself.</p>

ContentLicense: CC BY-SA 3.0

Title: Change system font


问:
How to limit app using wifi from shell
The Android root firewalls didn't work on my android emulators, How can I limit app using wifi using shell?</p>

Title: How to limit app using wifi from shell


问:
I deleted an important application on my rooted phone
After rooting my phone (HTC Bolt), I foolishly deleted some bloatware applications without backing them up. One of them was TouchPal, a preinstalled keyboard app. I didn't think this would be much of a problem because I already had it disabled in settings and was using a separate keyboard app for other purposes.

However, when I restart my phone, it always asks me to type my pin and "decrypt" the phone. I'm not sure why it does this (previous cell phone didn't), but apparently (this is only a theory) it uses this keyboard application, so I can't actually type my PIN in to decrypt my phone.

I could be completely wrong, and I might have accidentally deleted some other important file from my phone, but either way, I don't know how to fix my phone right now.

I did a bit of research and found out I was supposed to flash a ROM onto my device. However, I don't think I can even connect my device to my computer because normally I would have to enable USB debugging and file transfers.

Update: I booted up my phone in recovery mode (TWRP) and it was able to connect to my PC.


问:
Whatsapp phone verification
I updated my whatsapp recently and it stopped receiving messages. I uninstalled it and reinstall from play store. The issue now is that during phone verification it keeps saying unable to connect. My internet is on. I've even restarted my phone severally. I use Tecno w5 lite. Help</p>

OwnerDisplayName: Joe

Title: Whatsapp phone verification


问:
Disable Add icon to home screen on HTC U11+ running Android 8
I couldn't figure out where the setting to stop adding icon to home screen when install any app. There is used to be a setting in Play Store under Play Store->Settings->Add icon to home screen.

I have no problem to disable that on my HTC M9+ (Android 5.0.2) and Mi 5S Plus(Android 7). All 3 phones are running the same version of Play Store, 8.4.19.V-all[0][FP]175058788

This article described the setting does not apply to HTC U11+ as it is running Sense as home screen management/launcher, so the Home setting is replaced by Sense Home settings, and there is no such configuration within the setting to disable adding icon to home screen.
How do you disable "add icon to home screen" on Android Oreo?

Anyone has any suggestions? Thanks in advance.


问:
Package installer: show all permissions
In older versions of Android, the package installer used to show all permissions an app requested – and so did "Android Market" and later also "Google Play Store". A few years ago, the latter started to only show selected permissions, or rather permission groups ("uses one of those permissions" – without saying which). Now it seems with Marshmallow the package installer followed on that insane road, only showing permission groups.

I don't want a "guess", I want facts. When I install an app, I want to see what permissions it requests – exactly. Especially when I apply an update, I not only want to be informed about additional groups requested from, but exactly what permissions have been added – even if some other permission of the same group has already been granted before.

TL;DR: How to make the package installer show all permissions an app-to-be-installed requests?

Rooted approaches acceptable, also if requiring Magisk or Xposed. If doable without any of those, all the better.

Title: Package installer: show all permissions


问:
Stock s8 wont play notification sounds
Here i got exonys version of samsung galaxy s8 64 GB running with android 7.0 stock rom.

I have set my notification settings to sound and vibrate. Many times when a message arrives , SMS or wapp , my phone would just vibrate for a fraction of a second and either won't play notification sound or play it for less than half a second.

What should happen , that happens occasionally , is vibration and notification tone should play for atleast 1 second (it did on my old s3).

Also it gets worse when phone is on sleep mode , you might get barely a millisecond of vibration and no sound.

It's annoying and requires me to manually check the phone multiple times a day to make sure i didn't miss any important messages.

Title: Stock s8 wont play notification sounds


问:
Unfortunately radio has stopped
Suddenly the built in radio application cannot be started anymore. I do not know if I changed something, but I couldn't find how to fix it.

What is the possible cause?

PS: I did a soft reset, and I cleared its data and cache.

Title: Unfortunately radio has stopped


问:
Is there a way to change the default mic source system-wide on Android?
I have a bluetooth mic (that can act also as earphones) that I would like to use for recording video from various apps. Most apps don't have an option for using a bluetooth mic source and only use the phone's internal mic, and for certain recording activities I can only use the bluetooth mic. Example apps include Snapchat, Twitch streaming, etc.

Is there some way I can tell the android system to use the connected bluetooth for all mic recording, that all android apps can use? Surely this is a common enough use-case, what with all the bluetooth devices being used, that is should be possible?


问:
Maximum number of possible playable songs
I have a library of over 100,000 mp3 songs. I have tried and failed to modify an iPod to be able to accommodate this number, but a friend recently suggested I store them on a 1TB micro SD card, and use an Android device to play them. Is this possible? I am afraid that the limited RAM could be a potential problem in traversing through this vast number of files.
Any help is appreciated!

EDIT: Let's simplify the question. I have 300 GB of music that I want to have all on one device which I can use like an MP3 player. How can this be done?


问:
Enabling Accessibility service: Why does it degrade security?
Device : Mi A1, 7.1.2 Stock Google

Enabling Accessibility Service for apps impacts encryption  security as you can see:

Expanded text

Why is this?

I am all the more curious in case of PIN  : my understanding is that, encryption password is generated from a combination of user lock screen PIN and encryption algorithm. This is salted, and stored in root location, and used to generate the actual password to encrypt /decrypt. So using a longer PIN length (to maximum of 16 digits
)  is pointless if you have enabled Accessibility Service for any app?? Confused

Related to this

Should apps seeking Accessibility Service be considered an anti security feature?


问:
Encrypting Phone Calls?
When we perform the system encryption on a device, can the calls be encrypted too?</p>

Title: Encrypting Phone Calls?


问:
adb backup and restore, what is next?
I have followed this post to backup and restore an app from my old to my new phone. I could make the backup and the restoration. My question might be a bit silly, but what is the next step to have your app running in the new phone as it was in the old phone? Should I have to install the same app from PlayStore and do something else? Does it has to be the same version of the app that was in the old one? Thanks, and sorry if the question is too obvious but I am new in this. </p>

Title: adb backup and restore, what is next?


问:
How Device memory allocation happens
Under the Memory settings entry, there are several categories such as Apps and Documents.

What is considered as part of the Misc category? It's taking up a huge amount of my device's memory.

Title: How Device memory allocation happens


问:
Is there a way to use Google maps on the watch without voice?
I have an Android Wear 2.x smartwatch.

I use Google maps in English even though it's not my mother tongue, simply because I want to have all Google assistants functionalities enabled as well as Android on my phone(Android Oreo) in English.

However, when it comes to dictate to Google Assistant on the watch "native to  address" it just fails 100% of the time which I find rather frustrating. so, I'd rather type the address directly either on the phone or the watch. However, there seem to be no way neither to send Google maps address from phone to watch (unlikely other apps which have "send to watch"), nor to type the address on the watch directly (whereas many apps do have the keyboard input option)

My question is :

Is there a way to use Google maps on the watch without voice?


问:
How to know what triggered an apk installation
I have been trying to solve a malware problem for the past couple days in a certain chinese phone (Android system version=6.0), the problem I am facing is that a malware keeps being reinstalled even after uninstallation, I have tried a couple of methods to no avail.

First, I tried uninstalling using the pm command, rebooted the phone and the problem was gone but as soon as I was connected to the internet the malware was installed again. I didn't want to touch the system at first so I tried to start a fresh and performed a factory reset. I tried using the internet again and I was back to square one, this time with more than 5 malware apps installed. I checked the installer package for the malware packages using pm list packages -i and all I got was installer=null so I couldn't get the app responsilble.

After this I was sure the problem lied within the system so I took fresh system images from 2 different factory ROMs and flashed them separately to the device each time performing a factory reset before switching the phone on and believe it or not when I connected to WiFi again the malware apps were still reinstalled.

I then tried capturing the traffic using Packet Capture in hope to see what app was responsible for downloading the malware, for the entire time of the packet capture session (about 1 hour) I was using internet without seeing any malware, I stopped capturing packets and after a period of 5-6 hours of using internet the malware problem began again.
At this point I have really tried everything I know to spot the culprit app that installs the malware and I have run out of options, so is there really a way to get what process or app that caused silent installation of a package or should I just admit defeat and move on?

Here is a list of some malware package names:

```<code>com.yunshi.market
com.app.dov
com.glb.compass
com.loee.lv
com.androidapp.filemanager
</code>```


问:
Why do the names of my contacts not appear when in airplane mode?
I have noticed something weird in my Lenovo K6 (Android 7). When I turn airplane mode on and go to my contacts, only numbers appear. Why does this happen?

Note: I have my contacts stored in the SIM card.


问:
All data on SD card wiped after device reboot
Today I switched my phone on (Micromax Bharat 3) after a couple of days and saw, to my surprise, that all the data on my SD card (which is formatted as internal storage) had disappeared. Data for all my apps had gone, including a large collection of pictures. I took a couple of photos and screenshots, restarted my phone, and those disappeared too. This is not something which has happened before in the couple of months that I have owned this phone for.

When I go into storage settings, it shows me that my SD card is about 8GB full, but neither the phone's file explorer nor ES file explorer show me enough files to fill even 1 GB, which leads me to believe that my files are still hidden there somewhere.

DiskDigger was unable to recover any photos or any of the data; nothing showed up in the scan.

Keep in mind that my phone is not rooted, and has not been updated recently.

I noticed something strange when I first switched my phone this morning though. My SD card wasn't detected and I got a notification to insert if for proper functioning of apps (since it's formatted as internal storage and some apps are/were installed on it). When I restarted my phone the notification went away and the card was detected so I didn't pay much attention to it then.

Does anyone know what is going on and how I can get my photos back? My phone is running near stock Android Nougat. Since the SD card is formatted as internal storage, I can't recover any files from my PC.


问:
Integrating CalDav event sources with Outlook in the Calendar application
My calendar is a conglomerate of different event sources (personal, work, etc). I bring them together using the CalDav standard - on Android using the DAVdroid application.

There is however an event source that does not support CalDav natively: Outlook. On PCs, this is easily manageable with a programme like DavMail, that serves as a gateway to Outlook, providing a CalDav interface.

I would like to do something similar on Android in order to integrate CalDav event sources with Outlook in the Calendar application. Which method(s) could achieve this goal?

ContentLicense: CC BY-SA 4.0


问:
Suspicious "push" directory in Android phone storage
Android version: 5.0

Directory: push > locks > [files]

There's more than 3000 files in that locks directory. Each file has a name similar to 55ee5f08..._1471113497966 in length 38 characters. Each file has no file extension, and is zero bytes in size. The entire locks directory is zero bytes in size as well.

What is the purpose of this directory? Can I safely delete it?


问:
Most versatile encrypting option for SD? (without root permissions)
I want to protect my data in case of robbery or loss of my phone; but also to be able to recover my data in case my phone becomes unresponsive/breaks.

Internal memory

This is protected by authentication (PIN/Biometric).
Should I also encrypt it? Is already encrypted?
And would there be any way to access its files from another device? (e.g. my PC)

SD-Card / External memory

Here will reside most of my personal data.
I want to prevent the sensible data from being read without authorization.
But should be readable from outside the Android device (in case the phone breaks; or if it needs to be reset to factory defaults).

Not everything strictly needs to be private though.

Spotify cache doesn't need to be encrypted.

photos/videos, WhatsApp medias or other specific apps' data need to be encrypted.

Dropbox, Evernote and other apps are indifferent as they are implemented already with encryption.

# Implementation

I thought to eventually create two partitions of my SD: one encrypted and the other open. But maybe it's overkill.

Android native encryption

This prevents any other devices to access the SD, when took it out and plugged somewhere else.

Also in case of factory reset the access to the encrypted SD is lost completely. What if I have to because of some technical problem that makes my phone unresponsive?

This answer give some insight of how it works.

Generic encrypted filesystem

I am not aware of the options but would be great to have encrypted partitions that ask a verification/authentication when mounted.
Ideally Android would manage it automatically (encryption password associated to the system user), authenticating to the SO; while instead mounting the partition on other devices would require to type the auth password manually.

Practically, like the native Android encryption, but with the ability to mount the partition somewhere else, if the password is known.

Does anything like that exist?

Private Area (or similar, depending on the phone brand)

My device provides an encrypted Private Area; but I guess it won't allow any other device (let's say a laptop) to access it.

I don't want to be dependant just on some specific proprietary software, running just on a specific device, in order to secure my data.

Is there any other option using the same approach? (selective protection/encryption/sandboxing)

#UPDATE: I found Parallel Space that seems promising. Not sure if the technology is the same; didn't try it yet, so maybe doesn't fit for encrypting data on SD

Other options

I need to keep most of my personal data and settings on the SD; to have the SD encrypted; and being able to unlock & read it on other devices, inserting a password (either to copy files or to backup in case my Android device doesn't work anymore).
All this without rooting the phone.

What are the options available to realise this? Or alternative approaches?


问:
Not possible to make complete backup of my phone without wiping it?
Phone: Fairphone 2 (Android 6.0.1)
OS on Laptop: Linux Mint

To get a complete backup of my phone I want to follow the suggestions here:
Is this the right way to use dd for a full backup?

For this I have to be root first, otherwise I can not do this, right?

So is there no way to get root without wiping your whole device?
My problem is that I have nicely configured and set up my device but want to do complete backups from now on.


问:
how to open whatsapp with out scanning QR code
i want to open whats app in browser . but i have to scan the QR code produced in the browser through camera.

is there any way to get my whats in browser.

problem is my camera is not working it is not even opening .so i cant scan it .
is there any way to open it?

which tells how QR code works.

how do i permit whats app in browser?


问:
Remove Alarm Tone?
Last year I bought an RCA Voyager (tablet) running android 6.0.1 (marshmallow), and between now and then I have added custom tunes to my 'Alarms' folder to spice things up a bit.

My problem is that I accidentally added an alarm that I do not wish to use. I searched the whole clock app for a remove or delete option, but could not find one. I deleted the tone directly from the 'Alarms' folder, but it is still registered in the list (only it now uses the default sound). I attempted clearing the application's data, that didn't work either. I downloaded an app for removing ringtones and alarm tones, but it would not even run. I went as far as installing an app that can access the /system directory, but it was too complex in there and I did not want to break anything. My  device is not rooted.

So this really boils down  to: is it at all possible to remove custom alarm tones?

Title: Remove Alarm Tone?


问:
How do I backup app data from a secondary account and move it to a new phone
My son has been using a rooted Galaxy S4 with Resurrection Remix Nougat 7.1.1_r6. He is under 13, so my user is the primary account, and I created a secondary account for him.  I am now switching him over to my old Nexus 9, but now that Google has accounts for kids, I have made his account the primary account on the Nexus 9.  How do I backup the app data from the secondary account on the Galaxy S4 and move it to the primary account on the Nexus 9 under a new google account?  This is what I have tried so far:

Titanium only works in the primary account and doesn't seem to let me back up data from the secondary account.

Helium only runs in the primary account, and doesn't seem to let me back up data from the secondary account.

When I connect my PC to the phone, I can view photos, but I cannot view the app data directories.


问:
How do you turn red notification badges off for individual apps?
Apologies if this is the wrong stack site to post this question on. I wasn't sure which was best. I have a Huawei p10 phone (on Android 7.0 Nougat). I have searched and searched on-line but there doesn't appear to be any coherent information on how to solve this problem.

I am in a lot of groups on WhatsApp that have a lot of people in them. For this reason, I would like the red icon that appears on the app as a number of notifications to be switched off, as it isn't really telling me anything (except that there are absolutely loads of messages!). I only want it turned off for this app.

I have tried turning the allow notifications switch under 'Settings > Notifications and Status Bar > Notifications Management > WhatsApp' to off, however it doesn't appear to have done anything! ANy help would be greatly appreciated


问:
Have I Killed My SAMSUNG TAB 2?
I couldnt update my tablet kept getting the message, "Cannot update as this device has been modified."

So I searched for advice on how to fix it. I was told to put in recovery mode by pressing power + volume down, which I did, but when it came on the message on screen was "WARNING DOWNLOADING NEW OS CAN FATALY DAMAGE YOUR DEVICE. Push volume up to continue volume down to cancel."

I pushed up before realizing what I had done. It then said , "Downloading do not turn off tablet." It was saying this for about half hour then went off. Now I cant get it to come on. Is it dead?

Title: Have I Killed My SAMSUNG TAB 2?


问:
How many Intel CPU devices have Nougat or later?
From the official dashboard or other resources, I cannot derive how many (if any) real commercially available devices with Intel CPU have Nougat or higher installed (or preinstalled).

As Android developer, I want to know how many regular users may suffer if I choose not to support these devices (due to ffmpeg text relocations in assembly, if you want to know why).

I don't care about the emulators, or android-x86 deeply respected community. These people have much better alternatives for video recoding.


问:
Allow Google Assistant to be voice activated by more than three people
As a followup to this question: Is it possible to have the Google assistant be voice activated by more than 3 people?</p>


问:
How can I use Google assistant to navigate to a contact?
I have a contact with an address. If I type in the name in Google Maps then it suggests the contacts address for navigation. However using Google assistant it doesn't work. I tried the typical phrases like "route to John" or "Navigate to John" (in German).  I have Android 8.1 and live in Germany. </p>


问:
What are the criterias Google Maps Navigation uses to suggest a route?
I'm asking this question because of a very specific issue I'm facing a lot of times. Google maps suggests me a longer + more time consuming routes sometimes when it has the shorter, less time consuming routes. What is the logic behind this suggestion.

I will share a screenshot of this happens in the Google Maps Web (since I have to match the perfect timing to make that happen in mobile but in the web I can change the departure time and reproduce the scenario. I will update the post as soon as it happens the next time on the mobile.)


问:
Read and sms . What's the difference
When I get a status update on my texts sent , sometimes it says "read" and sometimes it says "sms". What is the difference between the two.</p>

Title: Read and sms . What's the difference


问:
Is wired Ethernet via USB adapter possible on the Google Pixel 2 phone, and in that case how? (NOTE: NOT the Pixel 2 XL!)
Simple question:

Did ANYONE get Ethernet connectivity via USB adapter to work on the Google Pixel 2 phone? (NOTE: NOT the Pixel 2 XL!)

(and in that case, using which USB-to-Ethernet adapter?)

It's apparently working fine on all other Pixel phone models:

Pixel
(https://www.reddit.com/r/GooglePixel/comments/5seqah/ethernet_over_otg_on_pixel/)

Pixel XL
(https://pixelmantras.com/google-pixel-pixel-xl-ethernet-connection-setup/)

Pixel 2 XL
(https://forum.xda-developers.com/pixel-2-xl/how-to/wired-ethernet-speeds-t3702289)

But for some strange reason the web/google currently seems clinically sanitized from ANY results, or even questions, regarding ethernet connectivity on the Google Pixel 2 phone?!

A number of people must have tried this, let alone asked about it before me, right? And out of these, someone must at least have gotten hold of some kind of more definitive answers?

PS. I already tried the "Plugable USB 2.0 OTG Micro-B to 10/100 Ethernet Adapter" (https://plugable.com/products/usb2-otge100/) on it myself (which is an adapter that seems to work on many other phone models), without any success. :-( (yes, I used a USB micro-B to micro-C wire adapter to be able to fit it into the USB-C on the Pixel 2)


问:
Android error “Failed to connect to the network. Please check you network connection status”
I'm using lenovo p2 phone. I'm getting following popup error every few seconds. It is very annoying.My mobile data connection is on. But it is showing " Failed to connect to the network. Please check you network connection status" . I have attached the screenshot.


问:
(SOLVED) How to recover data from Android ... /sdCard/ ... /Downloads on Xiaomi Mi5 MIUI8 (Android 6 Marshmallow)
UPDATE: 2018/06/27, bootloader implies wipe and it is a dead end for Data Recovery, mount as USB Mass Storage implies root to change settings, and for Mi5 or MIUI 8 this implies flashing ROM (dead end too as implies Data overwritten) so the only method I found is this (if the device is functional) then with the RAW partition dump recover files is easy

(LEGACY-post as is solved)

I have a problem I want to solve:

Notice: This is a specific problem, please try to advice on that matter (see complications at the bottom), any help and clarification will be very appreciated.

Fact:

I deleted by mistake files on path .. sdCard / .. / Downloads (internal memory)

Seconds after mistaken-deletion, I shut off the device, to prevent overwriting.

Specs:
Smartphone
Xiaomi Mi5 Miui 8 (Android 6 Marshmallow)
Non-rooted
Stock-recovery

WiP (workflow):

I notice about USB Mass Storage instead MTP (as key feature to connect device to PC) (and use some kind of recovery app like (Recuva or R-Studio (r-tt.com))

But I don't know how to activate that (Mass Storage) on my specific device and MIUI (Android version)

Another choice is create a image dump from custom recovery (TWRP) but how to install custom recovery...
... without changing the stock ROM,
... I saw unlocked bootloader is needed

Complications:

How to recover data from (internal sdCard, eMMc | UFS), without overwriting data.

How to root (if needed) without the changing of custom-ROM (if it is possible), on this specific device.

How to install custom recovery (bootloader unlocked is needed) to make a "raw image dump" exact byte-by-byte from the recovery ( isolated image dump, to work with IT Forensics tools)

Xiaomi Mi5 (how to root, methods, if it is needed), and how to install custom recovery, TWRP (bootloader unlocking etc)

Thanks in advance, first post here (a reader for years), I hope some people lead the way ^^, I want to learn.

Xiaomi Mi5 particularities: (more info-sources will be appreciated)

root methods (without ROM-changing)

TWRP recovery (stock ROM if possible) => create internal memory RAW image) to work with.

Bootloader-unlock methods and process


问:
How to block Spam SMS messages from contacts without number?
I receive spam from "Bubbleroom" contact without contact details after pressing three dots regularly.
I am thinking how you can block messages from "no phone number" and such cases.
Those messages are just advertisements.

Fig. 1 Example 1, Fig. 2 Example 2 of spam messages

It would be great to do it without 3rd party application.
I know the thread Block SMS without number but it only offers 3rd party applications.

Phone: oneplus 3T

Android: 8.0 Oreo


问:
Synchronizing skype contacts with android
I installed skype on my android 2.3 samsung galaxy and all skype contacts were added to pnone contacts. Later in PC while using skype I renamed some of skype contacts and removed few of them. After that I ran skype on samsung again to find out the changes made in skype using it from PC were not applied to the skype version on samsung.

Do I need to manually synchronize skype contacts changes made in skype while using it on PC? And how to do it?


问:
What does this symbol in notification bar mean?
What does the circled symbol below mean?


问:
How to install app onto sd card with root (Samsung)
SM-A520F | Android 7

What I've tried:
I partitioned the sd card using minitool partition wizard. I partitioned it into 100gb fat32/exfat and 20gb ext4 partition. I was able to install apps onto the ext4 partition and read things from the fat partition.  However, there was a couple problems. I could never see the ext4 partition, all I saw was the internal storage (32gb) and the sd card fat partition (100gb) so I didn't know anything about the sd card ext4 partition.

Secondly, on reboot the fat partition would not mount. I would have to take out the sd card out and put it back in to get it to work.
Thirdly, even when the fat partition would mount it would not show up in windows mtp. When I plugged the phone into the computer all that I could see was the internal storage, so if I wanted to put anything onto the sd card I would have to take it out and put it into the computer.

I've used this adoptable storage module to enable installing apps on sd card. It "worked" but I face two problems with this: solid explorer only reads the sd card so it says I'm only getting 120gb (not 120gb + 32gb) and secondly it doesn't load magisk modules properly, so vanced youtube or viper4android don't work. Also now I can't get reverse this.

I've been trying for a while now, I would really love some help.


问:
ICS on Desire HD

Possible Duplicate:

  Where can I find stock or custom ROMs for my Android device?

I'm planning to wipe my phone and in the process I also decided to try some alternative ROM.

From what I understand MIUI 4 and CyanogenMod 9 should be ICS based, but I can't find these ROMs in a pure form. On XDADevelopers forums, there is gazilion of MIUI and CM ROMS, but all of them seem to have some custom modifications.

I want to go for something reasonably stable right now. So where do I find some ICS ROMs for Desire HD without crazy modifications?

Title: ICS on Desire HD


问:
How can I hide ADB status to apps?
my bank app, for some unknown reason, refuses to start if USB debugging is enabled. It can run without problem if the device is bootloader unlocked and rooted, but for some reason, the developers are checking ADB status, and if debugging is enabled (no computer connected), it tells me that I have to disable it before starting the app.

Now, since this is illogical, I am searching for a way to hide ADB status.

On my device, a Xiaomi Mi 5x, I need to VPN into China each time I need to enable ADB (they did this "for safety"/limit grey market), so I have no intention to disable it, ever.

Can I hide it, even with root?

Title: How can I hide ADB status to apps?


问:
Smart unlock says "no devices" despite one being connected
Honor 6A, Android 7.0. Bluetooth active, smartwatch paired and connected, phone contacts and calls are visible from the smartwatch, smartwatch accepts files via Bluetooth. However, when I try to set up smart unlock, it says "no devices" and the phone keeps asking for PIN every time I unlock it. Any ideas?</p>


问:
How do I enable language button in samsung keyboard
How do I enable language button in samsung keyboard
I upgraded to android 7 in my samsung galaxy and the language switch button was gone

I brought it back through enabling all accessibility services but i can't do that
how can i have it without enabling accessibility apps


问:
Nexus 7: battery charging stalls at about 20 percent, even w/new batteries!
I've got a 2012 wifi Nexus 7 tablet. The battery will not charge much above approximately 20 percent. I've installed a new battery, tried charging using a nice Anker brand usb cable, tried several different good chargers, replaced the little usb/audio jack wiring harness, cleared the cache, as well as tried charging after shutting down from the OS then holding volume down button when powering up the selecting "power off" from the broken android window. Other suggestions? This is a nice little device that I still have uses for. Thanks in advance...

Update: OS is Lineage 14.1 20171112


问:
Flashing BLU Life One X2 Mini wiht Stock ROM
I am experimenting with custom ROMs on my BLU Life One X2 Mini and had done the following:

Unlock bootloader

Root device

Install TWRP

Create a NANDroid backup

And was in the process of wiping the phone using TWRP to prep for the installation of LineageOS when my phone suddenly restarted.

It would appear that the wiping also cleared TWRP. I'm not sure why; I had specifically installed it on the recovery partition...

As a result, the phone now doesn't boot into Android, but it's still visible to my computer and as far as I know, I'm only able to flash it using QFIL.

I'm looking for options to either:
A) Use my TWRP backup and somehow deploy it from QFIL
B) Get a QFIL ROM that is made for Life One X2 Mini

Finding these is a pain with all the click bait websites and triple redirect download links..

Also if you know of any other alternative, I'd be happy to learn it.

Thanks


问:
Restore whatsapp Google Drive backup on different number
I have all my whats app data backed up on Google Drive. Two days ago my phone stopped working and now I have a new one with a different number(cause I lost the simcard with the number I was using for whats app).

From the F.A.Q I can read that the "restore" option is available only if the number is the same, there's no other way to restore my old chat or at least read them? The google account is the same...


问:
Transcend SD card recognized as SanDisk card
Recently I bought a Transcend SD card (32 GB) for my HTC One E8 dual sim, but Android recognized it as SanDisk card.

Besides, I noticed that in Google Photos it sometimes takes too long to move photos to trash (about 5 sec). Is this normal behavior?


问:
What are the exact files in /system folder used to start internet connection on Android Lollipop?
I need this info to fix internet in a ROM by me.
I can turn on data but the speed meter always shown 0.10-0.50 kbps,
Nothing works. I thought it's a DNS problem & did a ping to google's ip address but failed to connect again.
I did replaced apns-conf.xml in /system/etc/, changed apn settings but failed.
Then i changed all binaries with net* in /bin/ & their corresponding libraries from /lib/ from stock rom which results :

```<code>ping 216.58.220.174
PING 216.58.220.174 (216.58.220.174) 56(84) bytes of data.
</code>```

& then it stopped.
Thanks in Advance.


问:
Unstable 2.4ghz wifi speeds - LG G6
A few weeks ago I noticed a strange wifi problem with my Lg G6 when connected to a 2.4ghz router at home (wrt 320n).

Wifi speed is terribly unstable. Although wifi signal shows up as excellent, running speedtest I get 10mps download, and when retesting 30 sec later , speed is at 1mbps. (See screenshot attached). I tried different wifi channels, scanned channels with Wifi Alanalyzer app, but problem always appears.

This translates into unusable voip quality and intermittenly very slow loading of webpages.

Problem doesn't appear at 5Ghz , and other devices at home don't have this issue using the same 2.4ghz router.

I have to use my router at 2.4ghz mode for backwards compatibility with some older devices (Chromecast).

Any clues?
Thanks

Title: Unstable 2.4ghz wifi speeds - LG G6


问:
What's the max char size you can share via Android share
With the colornote app for I have quite large docs (thousands of lines, not sure precise char count) so when I click 'send' on the largest ones to bring up the standard android share popup the pop-up never appears.

Is there a known limit on the size of the text to share?


问:
Find the account required for FRP
tl;dr: Is there a way to find the email address required by the factory reset protection?

This is what happened: Mother in law gets a new phone (first smartphone) for Christmas, and to simplify things the giver set up the phone pre-christmas. Tries to set it up with FirstnameLastname@gmail.com, that address is already taken, so they just picked one of the suggestions of FirstnameLastname####@gmail.com; Something didn't work as they wanted, factory reset the phone according to random internet instructions, but forgot to write down the exact email address.

Now the phone hit the factory reset protection and requires the exact email address to continue. We know the password to the account, but don't know ~4 characters of the email address.

I've found instructions to circumvent the FRP by downloading APKs onto the phone, but prefer to avoid that if possible.

Title: Find the account required for FRP


问:
Android cannot send mail
After working fine for a while, since a couple of months our tablet cannot send mails from mail accounts across several providers. However, receiving mails works. I tried whatever I could think of or found on the internet (see below), and I am quite desperate...
This page shows several possibly related questions, but they do not describe my problem.

It says "sending ..." -> Error message "senden fehlgeschlagen" = sending did not work. Update: Sometimes (seems random, possibly because it is shown for short time ~ 1 sec) it also says in addition "Server nicht verfügbar" = server not accessible (although internet and smtp server work when tested from the other devices, see below).

Device:

Samsung Galaxy 10, 2014 edition Android 5.1.1, Safety patch 2017-04-01
(i.e. all regular updates offered for it)

has enough memory > 6 GB free

mail client: standard Android mail client

mails are managed via IMAP (not POP3) / SMTP

Mail providers tested:

web.de (2 accounts from 2 people)

mail.de

tested each time with only one single account set (and all others removed), just to make absolutely sure the do not interfere with each other

What DOES work is the following:

sending (and every else) mails from each of the accounts using a) another android device (Samsung Galaxy phone, Android 5.0.1 - i.e. all regular updates offered for that device), b) PC/Thunderbird, and c) webmail.

send & receive mails via POP3. I wish to use IMAP (PORT numbers adjusted, same settings exp. for outgoing (SMTP) server).

internet bandwidth (45 MBit/s download, 6 Mbit upload, ping 92 ms) and volume

What I tried so far, without success:

shut down and restart the device

double-check  mail account settings (incoming: imap.web.de / imap.mail.de, SSL, port 993, optional imap path prefix: none; outgoing: smtp.web.de / smtp.mail.de, TLS, port 587, "Anmeldung erfordern" = need authentification checked in checkbox, same PW). All is set as suggested by the respective providers, and as set in the other android device from which I can send mails.Tried also alternative settings (e.g. SMTP: port 25, and other settings), but this did not improve anything (even though probably not all possible combinations)

Removed and re-created the accounts (only one at a time). Still can receive, but not send.

Tried another WiFi at a friend's home, different telecommunication
provider, same problem. There is no problem with bandwith, internet volume etc.

Tried on multiple days since several weeks to months

Mail app is updated

I prefer the normal android client. To our knowledge, there is no other (possibly interfering) client installed.

UPDATES:

As suggested in comment below (thanks!): deleted all data and
deleted all cache from mail app (and again deleted and re-created
account) - no change.

No certificates are needed, but the mail provider requests the users to specifically allow mail clients (mail clients/apps in general, i.e. management via IMAP/POP3, as opposed to the provider's web surface). This option has always been and is still chosen (doublechecked, and works from other devices).

Thanks in advance, I am looking forward to your help.

Title: Android cannot send mail


问:
Accept calendar invite appears tentative
I'm using BlueMail to manage emails on my phone. Lately, whenever I accept a meeting request for work, my reply to event organizers shows up as tentative.

I'm using Samsung calendar.

Any ideas?


问:
Both failed rooting LG G6 Nougat 7.0 on one-click root and PC
I have been trying to root my LG G6 with Nougat 7.0 on. On the one click method it reaches 90% then fails with an error code: 0x172E55. I can never get past that. Then I tried with the PC version. I turned usb debugging on and use the original wire. It keeps on prompting me to turn on usb debugging and flashes on and off the connecting image. How do I fix this?</p>


问:
Reset Android settings to stock
Is there anyway to restore all the settings as if I just set up the device? I don't need to factory reset and purge all files and apps, I just want to reset the settings

Device : Moto G5S Plus, Android 7.1.1

Title: Reset Android settings to stock


问:
No files are found on MTP
When I connect my phone to my computer, no files are found on the device. It says this folder is empty. This is a new unlocked phone running Nougat 7.1.1 and this is the first time I've connected it to my PC. I've tried turning on USB-debugging but nothing changes. Is there a way to fix this?

UPDATE:
    I fixed the problem by changing USB configuration to PTP (picture transfer protocol), then back to MTP (media transfer protocol. Thanks for all your help!

Title: No files are found on MTP


问:
[Nokia 3]adb reboot bootloader failed
I have Nokia 3 Android 7.1.1 connected to PC Windows 8.

Problem is:

```<code>C:\>adb reboot bootloader
reboot failed: -1
</code>```

Reason to do it is to flash/root in future.
Other commands ok:

```<code>C:\>adb devices -l
List of devices attached
NE1GAM0760502899       device product:TA-1032_00WW model:TA_1032 device:NE1 transport_id:11
C:\>adb reboot
[...really reboot as expected]
C:\>adb reboot recovery
[...really reboot to recovery]
C:\>adb --version
Android Debug Bridge version 1.0.39
Version 0.0.1-4500957
Installed as C:\Users\nobody\AppData\Local\Android\Sdk\platform-tools\adb.exe
C:\>adb -t 11 reboot bootloader
reboot failed: -1

C:\>adb shell getprop
...
[ro.build.date.utc]: [1511256803]
[ro.build.description]: [TA-1032_00WW-user 7.1.1 NMF26O 00WW_2_15H release-keys]
[ro.build.display.id]: [00WW_2_15H]
[ro.build.flavor]: [NE1_00WW_FIH-user]
[ro.build.host]: [NJ-SW-UBUNTU-S7]
[ro.build.id]: [NMF26O]
[ro.build.product]: [NE1]
[ro.build.tags]: [release-keys]
[ro.build.type]: [user]
[ro.build.user]: [foxconn2]
[ro.build.version.incremental]: [00WW_2_15H]
[ro.build.version.preview_sdk]: [0]
[ro.build.version.release]: [7.1.1]
[ro.build.version.sdk]: [25]
[ro.build.version.security_patch]: [2017-12-01]
...
</code>```

What's wrong?

I can reboot to fastboot manually from recovery menu ok.

Title: [Nokia 3]adb reboot bootloader failed


问:
Password has appeared but i've not installed it!
My partner uses her Lenovo tablet all the time , she doesn't use any password or pin just a swipe after boot up screen BUT tonight she booted up its got to the " desktop" screen but when she swipes it comes up asking for  PASSWORD , we've tried all known passwords yet it just says " WRONG PASSWORD " after 5 attempts it shuts down , there's no " Forgotten password " choice!

I'm at a loss , we don't really want to do a reset as she will lose pics that haven't been backup!
It's a Lenovo yoga tablet 2


问:
Samsung account crashes on S3
I have a Samsung Galaxy S3 LTE.  I've been trying to use it with a Samsung Gear S3 Classic.  The phone and watch can find each other, but whenever I attempt to push an app or a watchface from the phone to the watch, I get the message

Unfortunately, Samsung account has stopped

I have seen this message for a little while now (whenever I restart the phone) but I have largely ignored it because the phone still operated correctly.  However, now it seems like it prevents the Samsung Gear app from installing items to the watch.

I have found some items that talk about updating the firmware.  I've downloaded Kies 3 (version 2.6.4.17113_1) and that refuses to do anything with my phone (which is running Android 4.4.4).   I've downloaded Smart Switch.  Which will actually connect to my phone and I've been able to back it up.  But it thinks the phone is running the latest firmware version.  In fact, my phone thinks that too when I check it directly on the phone.

I just would like to get Samsung Gear to install items on the watch, so it's pretty frustrating.  If anyone knows how to get Gear to work with this phone, I would truly appreciate any help.

I have read that this is related to an incomplete Samsung account.  I never had one.  I did create one online with the hope to add it to the phone.  However, attempts to add the Samsung account causes the same crash message,

Details:

Phone Model Number: GT-19305

Android Version: 4.4.4

Android Security Patch Level: 2016-01-01

Baseband Version: 19305XXUFPA1

Kernel Version: 3.0.31-6850576

Build Number: KTU84P.19305XXUFPA1

SE for Android Status: Enforcing SEPF_GT-19305_4.4.4_0050

Title: Samsung account crashes on S3


问:
How does MyJio app draw over apps when I've disabled that in the app settings?
The MyJio (com.jio.myjio) android is able to draw over other apps in my Moto G5+ running Android 7.0.

I have disabled the 'Draw over apps' feature by going to Settings > Apps > Gear icon > Special access > Draw over other apps > MyJio.


问:
New pixel 2- turning on shows battery and then horizontal purple line
I just bought a new Pixel 2. I opened the box, turned it on, and it showed a white battery with the charge symbol, and then that disappeared, and 2 small colinear horizontal purple lines briefly flash in the middle center of the screen, and then the screen turned black again.

Did I get a dead unit out of the box? Or do I need to charge it first? Or do something else?

Edit:

I had tried leaving it plugged in for 10 min and nothing continued to show up on the screen. When I tried turning it on, it was same result. I currently own a Pixel, and when it dies and you plug it in, it at least turns the screen and shows the battery charge icon. This one never did this.

I ended up exchanging it and the new phone booted up straight to the google screen. I think the old one was a defective unit, but cannot confirm 100% since I didn't try leaving it plugged in for more than the ten minutes.


问:
Google account does not sync and is not cancelable
The device in question is a tablet with Android version around 4.2 I guess. I do not have direct access to it.

The Google account shows errors when synchronizing. I want to remove the Google account and add it again.

The problem is that there is no "Remove account" button. I guess it will appear if I cancel the sync in progress. It looks like it hangs and does never terminate. At the bottom of the account avtivity appears the error:

Sync is currently experiencing problems. It will be back shortly.

But how to cancel it? There is no button for that either and rebooting does not change anything.

I also tried to reset the whole device, but after that I get the exacft same problem.


问:
Stuck in boot loop after doing a factory reset, uploading custom firmware (via Odin), rebooting and doing another factory reset
I have the same issue as descibed here. I got the firmware file from here.

My phone isn't recognized by my computer when I connect it to USB ports that other devices work with while connected to the same ports. (The error popup notification from Windows Explorer is "This device malfunctioned and Windows can't connect to it".) The phone shows charging icon when connected by cable to a power socket. So while I tried to follow the following steps, I got stuck. Since there does not seem to be a connection between the phone and the computer, the flash won't complete.

Extract (unzip) the firmware file

Download Odin v3.12.3

Extract Odin ZIP file

Open Odin v3.12.3

Reboot Phone in Download Mode (press and hold Home + Power + Volume Down buttons)

Connect phone and wait until you get a blue sign in Odin

Add the firmware file to AP / PDA

Make sure re-partition is NOT ticked

Click the start button, sit back and wait few minutes

This is a screen shot of my interaction with Odin.

Other than getting a new phone, do you have any tips on how to fix this?

I tested a cable with another device, and it worked with that device.

I then tried again with that cable and the same port.

OK I got Odin to pass. I just had to make sure that it was connected properly and the MD5 file was added by clicking in the AP box and opening the file rather than dragging and dropping it into the box. Once I did that it started to download.

However, the phone is still stuck in a boot loop.

I am now able to connect to PC (Odin) but not able to make it boot.

I did a factory reset and rebooted, but I still get the same thing—it won't get past the boot screen.


问:
Root Asus Zenfone 3 Max
How can I root an Asus Zenfone 3 Max?

(Note that "Asus Zenfone 3 Zoom" and "Asus Zenfone 3 Laser" is not the device I am asking about)

I have tried using the official KingoRoot app to no avail (it says "Root Failed - Error 0x11CA2E")

Here are the device specification:

```<code>Build Number: MRA58K.US_Phone-13.1.4.69-20170414
Model Number: ASUS_X008DC
Android Version: 6.0
Android security patch level: April 5, 2017
Baseband version: MOLY.LR9.W1444.MD.LWTG.MP.V88.P71.2017/04/14 02:39
Kernel version:
3.8.19+
wind-kernel@droid #1
Fri Apr 14 03:01:04 EDT 2017
</code>```

<s>This device is not on the list at How do I root my Android device?</s>

EDIT: It is now linked to this page

Title: Root Asus Zenfone 3 Max


问:
How do I fix the permissions on /system/app on my Kindle fire
I attempted to root my Amazon Kindle.  That seemed to go well, but when I tried to add the Google App Market, I apparently made a big booboo, because now I am in "constant reboot, 'kindle fire' screen of death". That is, the fire won't boot, and it just stares at me with "kindle fire".

I've googled around, and found people with my exact problem, but no way to fix it.  And my problem is this:

The permissions on my /system/app folder are as follows?

```<code>d--------- root     root              2012-01-28 13:26 app
</code>```

Yeah, I know, not good.

So, how can I fix it?  I've tried the various methods out there, but basically, because the directory is so hosed on permissions, I can't do anything.  For instance, I can't run

```<code>mount -o remount,rw -t yaffs2 /dev/block/mtdblock2 /system
</code>```

because I get

```<code>mount: Operation not permitted
</code>```

and when I try

```<code>adb root
</code>```

I get the cryptic

```<code>adbd cannot run as root in production builds
</code>```

So I am dead in the water.

Can anyone help me fix my permissions on /system/app?


问:
connecting to internet in my smartphone
I have a Note 5 smartphone which I cannot browse any Internet websites using my browser while data is on. But I wonder when using it as a Wi-fi hotspot to share its mobile internet on other smartphone, it works on them!
I tested two browsers and other apps that use internet connection on my Note 5, but no success.
Any help?</p>

Title: connecting to internet in my smartphone


问:
Reboot loop - "normal" fixes didn't work - how to recover data?
My Nexus 5 is in a reboot loop and all the normal "fixes" (e.g., going into recovery mode and clearing the caches, etc.) don't work. It looks like it is a hardware problem as the phone is even rebooting instantly when going into recovery mode (I can't even select an option from the recovery menu as it disappears too fast).

I've since bought a new phone but realized that I have important data on my old internal memory, and yes, I don't have a backup (shame on me).

How to obtain data from the internal memory of the phone? Is there any way? Connecting the phone via USB didn't help me ... the computer does not have enough time to detect a device as it immediately goes into a reboot loop again.

Edit: I think my power button may be defect, because I don't even have to start my phone to go into a reboot loop, it does it all by itself.


问:
How do I toggle "Do Not Disturb" via ADB?
I would like to enable Do Not Disturb on a phone via ADB. I have located the settings namespace and key which controls Do Not Disturb:

```<code>adb shell settings put global zen_mode 2
</code>```

But when I run this command and then get the key its value remains set to "0". If I enable Do Not Disturb manually on the phone, then look at the key, it shows "2" as I expect.

I am using stock Samsung S7/S7 Edge phones, with Android 7.0, not rooted.

Is there a step missing in order to toggle this particular setting via ADB? Thus far I haven't had issues changing any other settings in this way, so it's confusing why this does not work.


问:
Redeem girft card for child
My child got a tablet for christmas and a google play card. I set her up on the under 13 age google acct, but when i try to add her card it keeps popping up an error - orafi01

Title: Redeem girft card for child


问:
Keyboard always visible in notification
I have GTA vice city game in my mobile (Redmi Note 4 running on Nougat and MIUI 9). I have installed and started playing but as you all know the game is not fun without "cheat codes".

So I want to use an onscreen keyboard with which I can type in the cheat codes to play the game. I've already tried the third party keyboards but my phone doesn't give permissions for the application.

How can I achieve my goal?

Title: Keyboard always visible in notification


问:
Wifi slow to find correct network
I have a a10 tab 2 lenovo. I recently reflashed the original new rom. Before everything was working except the wifi was slow(lots of lag) which was on a hacked rom for some similar tab.

The problem I have now is that when I turn on the device for the first time, the main wifi network is not found nor loaded. It either takes a few minutes or I have to simply open the wifi settings in which it then finds and connects to it. It ends up connecting to a more remote network which is too slow to use.

My phone is connected to the same networks and it finds and uses the correct network immediately without issue as did the tablet before I changed roms.

I'm not sure if the tablet thinks that the first network it connects to is better(sometimes I use it, but rarely, only when I'm take it to the other side of the house) or what. It seems it is the tablet. I'd basically want it to always use the main network A(which is 100% signal strength) rather than the 50% strength of network B that it connects to(which is on the other side of the house).

any ideas why this is doing that and how to change it? Basically I want it to connect to network A. I suppose I could forget network B and it might do it but then I'd have to remember the wifi pass to it and enter it in every time and have it forget every time... just to fix a problem that shouldn't exist in the first place.

I'm pretty sure it must be a setting/configuration on the tab since it was working before the rom change and my phone works fine which has identical wifi setup, locations, etc.

It is android 6 rooted.

[The problem is that when I turn on the device, go to a browser I get wifi error. I open the wifi settings, it connects without me telling it which network. I have to clear the browser so it stops using the old wifi network, then everything works]

Title: Wifi slow to find correct network


问:
How to navigate the directory of my computer while using adb?
I want to download recovery onto my phone and to do that I need to open a command window in the folder. However, I run into problems when I try to do that. I already downloaded minimal adb and bootloader and because of that I cant open a regular cmd in the folder. In the adb itself I do not know how to navigate directories and I get confused fast when I try to Google the same question. Thats Why I want to ask all of you. How do you navigate directories in adb?</p>


问:
How to root Samsung J5 2017 (Android 7.0) on Ubuntu Linux?
Phone Name: Samsung J5 2017

Model number: SM-J530F

Build number: NRD90M.J530FXXU1AQI3

I am using Ubuntu 17.10.

My question is, how could I root this phone using my PC? I have intermediate Linux shell knowledge and Android knowledge, however this is my first time attempting to root my device.

Many thanks, Thomas.


问:
Internal Storage Dying? (S.M.A.R.T. equivalent?)
I suspect the Internal Storage on my device is failing.  How can I confirm?

If this were a computer, I would check the S.M.A.R.T. data for each storage device.  I am looking for something similar.

Misc:

My device was released over three years ago. I'm running a Marshmallow, custom stock ROM, rooted with Magisk, and with Xposed installed.

I recently wiped my device and reinstalled the custom ROM.

When requesting root, MagiskManager often crashes and logcat reports: android.database.sqlite.SQLiteDiskIOException: disk I/O error (code 1034)

I occasionally see other I/O error messages fly by on logcat

From recovery, the e2fsck / fsck.f2fs commands report no filesystem errors.


问:
(SOLVED) How (methods) to unlock Bootloader on own Xiaomi Mi5 MIUI8 (Data Recovery context)
UPDATE: 2018/06/27, bootloader implies wipe and it is a dead end for Data Recovery, mount as USB Mass Storage implies root to change settings, and for Mi5 or MIUI 8 this implies flashing ROM (dead end too as implies Data overwritten) so the only method I found is this (if the device is functional) then with the RAW partition dump recover files is easy

(LEGACY-post, solved)

I have a problem (objective: Data Recovery)

To install TWRP (it seems, I need, explicitly unlocked-bootloader)
To unlock bootloader I researched and saw some methods:

Official method (tedious and If I understand it correctly, implies flashing some Developer-ROM, and "shit") (I want avoid that)

non-Official methods (a group of queries, I don't find too much clear methods) (BTW quality-posts on XDA-Developers have seen better days :'(

The thing is, I don't want to re-flash some ROM (as I want minimize writings for Data Recovery)

How to check if bootloader is effective-locked ?

Question: I need ways to unlock-Bootloader in this Xiaomi Mi5 device with MIUi 8 global stock (methods, more than one or two, and then I will research about it)

(This is not a trivial-question as in this particular-case:

Logic => unlocking-Bootloader <=> install TWRP to backup partitions (do Data Recovery with them, mounted on PC)

I don't know, I don't have (the Knowledge) to do some hack, but I think this has to have proper-solution.

The objective is here:
How to recover Data from Android .. sdCard / .. Downloads on Xiaomi Mi5 MIUI 8

Therefore both questions are related to each other...

Any help will be very appreciated (final objective is Data Recovery, but I want to try software, before "JTAG dump" etc (and implications of that process)


问:
Is it possible to use one Android phone as a touchpad for another Android phone?
I really want to control my Android phone with a touchpad. But I don't have a bluetooth keyboard with touchpad. Is it possible to use one Android phone as a touchpad for another Android phone? If so, please explain how to do it. </p>

<p>(I want to see a mouse pointer on my main screen and control it by moving the fingers on the screen of the Android phone used as touchpad).</p>


问:
Huawei G8 (GX8) big problem (strange)
first of all sorry for my English. I'm from Bulgaria and second this is my first time ever to do this so please excuse me if i'm doing something wrong.

I have a Huawei G8 (Rio L01). I tried to install another ROM. I have done it so many times with 30+ different Samsung phone. So I downloaded "custom rom 6.0.1" for Huawei L01. My device is rooted so I installed the latest TWRP and got a problem: I got stuck in Recovery Mode.

I had this problem a couple of years ago. I Installed older TWRP and problem solved. So I made a Factory reset, wiped and all I should do, then installed the rom, restarted the phone and boot. I got it to the screen where u choose LANGUAGE (the first screen after boot) and the moment I choose language my phone went crazy: blue, green, yellow absolutely every color on the display and flashing o.O I turned off the phone and booted it up again and got to that language choose screen and didn't press anything and same thing. I tried 10+ times and same thing: display goes crazy.

I can't go to RECOVERY MODE – only can go to that "FASTBOOT AND RESCUE MODE" . Please help! I can upload pictures if needed.

P.S. it is the bigger version - 3GB RAM, 32GB ROM, dual sim if important.

Title: Huawei G8 (GX8) big problem (strange)


问:
My wifi will not stay on anymore
I have a Android 5.1 system a few day ago my wifi started turning it self off now it will not stay on for more than 5 minutes. I been through setting up and down I can find anything wrong accept one thing in the wifi advanced settings the web certificate section is totally empty. First advice I tried from online was infected with malware So I downloaded the the tool to check and remove. After the scan it came up clean. </p>

Title: My wifi will not stay on anymore


问:
If I'm connected to device A don't connect to device B
I often find myself in my car following my wife until our commutes separate.
When arriving at stop signs for instance, my audio regularly cuts out and transfers to the BT Audio in her vehicle.

I'd like to create a solution, in Tasker, which is when I'm connected to the BT in my vehicle, don't connect to the BT in hers.

I've created the profile and am struggling with the task to accomplish disconnect BT from her device, or just prevent further BT connections.  Can anyone help?

The profile is set up as:
State > Net > BT Connected
The address of my vehicle.

So now I need a task to disconnect from the BT in the other car.  But I can't figure it out.


问:
Wifi turning off automatically when turned on
My phone is lenovo vibe k5:

I am facing the issue when I turn WiFi on, its turning on-off continuously!

"Scanning Always Available" Is Also Turned Off and there is not any saved network...

Still I am facing this issue.


问:
Unlock bootloader on Dell Venue 10 5050
I have a bricked Dell tablet that doesn't boot and also a has locked bootloader (Secure Boot: Enable). I've made a full partition dd backup, but now I cannot flash it via fastboot supposedly because of the locked bootloader. I obtained root before making the backup and so this backup seems to be unsigned, as they said me here.

I tried to unlock via fastboot oem unlock but it throws

FAILED (remote: unknown OEM command)

Command fastboot flashing unlock doesn't work as well.

This tablet has BIOS but it doesn't have option for disabling Secure Boot.

I found this instruction how to disable Secure Boot, but I wasn't able to fulfill it, 'cause I got flash_cmds error while flashing osloader.

Is there any chance to unlock bootloader or fix it some other way?

Title: Unlock bootloader on Dell Venue 10 5050


问:
Bricked Note GT-8013, unable to boot from TWRP recovery (flashes logo for 1-2 secs), nor on normal mode, installed TWRP via both IMG and TAR
I'm running a Samsung Note GT-N8013. One day, my tablet fails to boot, saying that encryption had been unsuccessful; according to this answer, /data has failed to format. I can't reset the device, pressing the reset button on the screen does nothing. I also can't boot into TWRP recovery mode, it just flashes the logo screen for 1-2 seconds and switches back to the Samsung Note logo screen. I've tried to reinstall TWRP into the recovery partition using both twrp-2.8.7.0-gt-n8013.img and twrp-2.8.6.0-gt-n8013.tar with Heimdall.


问:
Is it safe to grant WRITE_SECURE_SETTINGS Setting to an app?
I'm trying to determine if it's safe to grant the WRITE_SECURE_SETTINGS permission to an app. Specifically, I would want to grant this permission to MacroDroid (an automation app similar to Tasker) so that the app can turn on location/GPS automatically (without my input) based on the automation rules that I set. It seems that no app can automatically turn on/off location/GPS without the user input, so Macrodroid recommended its users to grant their app this permission (see forum) if they want the app to set the following automatically:

Battery Saver

Location Mode

NFC Enable/Disable

Set Language

I've been exploring the ABD tool but a bit reluctant to do this since I couldn't find information about the safety of granting this permission to 3rd party app. I also don't know the full list of features that the app can do after WRITE_SECURE_SETTINGS is granted, so I appreciate if you can give me some details about this secure settings permission.

After digging in a bit and it seems that the Android docs didn't say much. https://developer.android.com/reference/android/Manifest.permission.html#WRITE_SECURE_SETTINGS

Appreciate the help!


问:
WiFi works, but frequently disconnects with "authentication problem"
I have a DOOGEE S60 with Android 7.0 Nougat.

It can connect to my 2.4GHz WiFi network at home without problems. However, quite frequently, the phone disconnects, showing the message "authentication problem" below the SSID. Manually reconnecting then temporarily fixes the problem, until the next random disconnect.

I have an ASUS RT-AC66U with Merlin firmware. The WiFi network uses WPA2-PSK+TKIP/AES. The phone is not rooted, and I'd like to keep it that way.

Observations:

The phone maintains a stable WiFi connection on my company's network; this other network uses WPA2-PSK TKIP.

Switching the WiFi on the phone off and on again, rebooting the router, rebooting the phone, forgetting and re-logging into the network, etc., all have no effect

Same behavior occurs when using a 5GHz network (the ASUS router is dual-band)

I have 23 other devices; they all connect to the same network without any problems whatsoever.

The network does not employ MAC filtering or other such smoke-screen type security measures

There is nothing relevant in the router's logs

Disconnections occur completely randomly; sometimes I have difficulty maintaining a connection for longer than 2 minutes, sometimes it lasts the whole night.

It does seem to be related to which apps are used. Particularly ad-infested apps seem to cause more frequent disconnections.

...I have no idea how to even begin diagnosing this extremely annoying problem. Any ideas?


问:
Intent sent by Google app to WhatsApp
I have some very basic knowledge regarding the working of intents. I am a user of Tasker. Even after a lot of searching, I could not find any intent using which I could send a WhatsApp message.
But, as we all know, the Google app using some method to send WhatsApp messages when we say * Send a WhatsApp message to XYZ*. How does the Google app do this?</p>

Title: Intent sent by Google app to WhatsApp


问:
Unknown apps - My Consumer Cellular and Prip
I've purchased MotoG4 Plus (Unlocked) around Summer 2016 at Amazon(India). I've been using the phone since then and have been extremely cautious about the apps I use on my phone.

Whilst playing through some settings on Pushbullet (under setting: Notification Mirroring > Choose which apps to enable), I've noticed an app named My Consumer Celluar who's logo looks similar to this playstore listing and two apps named Prip who's logo looks similar to this listing.

I've never installed these apps before and these apps are not listed under Android App Settings for me to simply uninstall.

Atleast, the android app id for Prip is com.motorola.ptt.prip which makes sense because I have a Motorola phone. But, I have no idea about Consumer Cellular.

My questions:

Why did Motorola install these apps even though it was sold in a different market ?

How are these apps not visible under general android app settings ?

Do these concealed apps work in the background thus invading my privacy? If so, How could one know that the apps are running in the background ?


问:
How do I run shell commands on the device I'm currently using for Android Terminal Emulator?
I don't have an available PC that I can install ADB on without getting in trouble, and my phone's screen density is killing me. Is there a way I can run adb shell wm density and adb reboot from my own device and not have another device available?</p>


问:
Huawei p8 lite wifi problem!
I have huawei P8 lite and there is a very funny problem here for my wifi!!!!
I am connected to my home wifi through password and my wifi shortcut key shows that I'm connected but my wifi list shows no connection! I just put the screen shots so you can understand me better..!!

Take a good look. I am connected to Huawei wifi but my wifi list shows no connection!!!
So funny, isn't it?,

Title: Huawei p8 lite wifi problem!


问:
What is this cloud-with-sun icon meant to represent?
Can you tell me what this symbol is for?


问:
Huawei erecovery not working on Honor 7 lite(forgotten password lock)
Can anyone help with this ?
I can´t really get into settings to change usb debugging. Also huawei erecovery asks about update(Download latest version and recovery) -- which results in error getting package info failed.

Not sure how to proceed in this, because bootloader is also locked.

Any ideas ?


问:
Backup and restore Android app data with Terminal Emulator (rooted)
What is the right or the best way to backup and restore android app data by terminal emulator in a rooted phone?

su -c cp -r /data/data/the.app.id /sdcard/the/backup/directory can copy the app data, but copying them back will cause some problems. For example, the owner and group of them are not correct, permissions are not right, only root can access them.

I've searched for a while and got some solutions that I don't want. adb backup the.app.id needs a computer.
Some apps cannot access sdcard, so switching to it then copying is not possible. Also, to copy it, iterate through the whole directory and chmod with root takes a lot of time and may not work.

If the question needs more explanations, please tell me by comment. Thanks for reading or answering this.


问:
No calendar notifications from old phone events after switching phones
I recently switched from a Wiko LENNY (don't laugh, it was my first phone) to a Samsung Galaxy S7. When I tested notifications at first they seemed to work, but my phone keeps missing events. I've come to the conclusion that I only get notifications for events created on the Galaxy but not for those created on my old phone.

I currently have both the Samsung and the Google calendar app installed on the Galaxy and both behave in the same way (either both or neither send a notification). I also made sure that "Notify on this device" in Google Calendar is checked. I can see all the events I missed on my new phone (so the cloud syncing must have worked) and they all had notifications set for them. In fact, when I boot up my old device I DO get notifications for all the events I missed via the built-in calendar app.

So: How can I receive notifications for events created on my old out-of-use phone on my new phone?


问:
Can't access main camera (stuck in wide angle)
My Zenfone 4 Max camera app is stuck on the wide angle camera. The icon on the picture below says it's the main camera, but it's possible to see by the curve on my wall that it's indeed in wide angle. When I click on the wide angle icon, system says it's now on wide angle, but the image doesn't change.

I have tried restarting in safe mode, clearing app's cache, restarting normally and tried using 3rd party camera apps. No success so far.

Any way to fix this without having to take it to Asus tech support (they take forever to answer) and/or restoring factory settings?


问:
Change Assistant Language Without Changing Locale on Oreo
I am in the United States, but I would like it if my assistant and navigation voice had an Australian accent. On Oreo, the only way to do this seems to be to change the system language to English(Australia). After doing this though, I notice the phone seems to think I am Australian, as Google Now shows me news from Australian websites and Inbox shows dates in DD/MM format. There used to be an option to change date format, but that also seems to have disappeared in recent versions. I would like it if my Assistant voice were Australian, but my overall system local was US. Does anyone know of a way to make this happen?</p>


问:
How to clone and application with all its files in the same device?
Basically what I want is to have the same app twice, but if I use APK Cloner the new app doesn't have the original's app saved data, so what I want is to clone the data of the original APK to the cloned APK too.</p>


问:
FRP triggered after hard reset on rooted phone 5.1..Any Explanation?
Though I'm a great fan of frp, I'm a greater fan of Rooting. I have an android device running lollipop 5.1 with just so many bloatwares. I rooted the device and got rid of the bloatwares. It was kinda nice that the superuser app was not converted into system app. I Uninstalled it since it was eating up to 54Mb space. I did not lose root privillege. I turned off OEM unlock and was using my device as normal with rooted apps both old and new working fine. It came a time I did a hard reset and frp was triggered. I couldn't setup the device  with any other account except with the last known account. That surprised me because I know rooting turns off frp. Thanks </p>


问:
How to solve Inaccurate battery status after removing battery
My phone battery is just about 2 months old. It can last for many days without browsing and over 12hours  streaming HD videos on YouTube. But something is strange. Any time I remove the battery ( high temperature or to switch SIM card or SD card ), phone doesn't care if battery was at 99%, on reboot, I realized battery has drastically reduce down to even 5%. At times I would remove the battery again and wait for some minutes (about 30)  and reboot again getting up to 40%.
What's the problem and how to solve it

Device : MTN Smart L 860 on Marshmallow 6.0


问:
App exits on its own if certain permissions are denied. Any way to prevent?
Some jerk apps, if certain permissions are denied to them, exits on its own. This forced the user to grant permission to use, which contradicts with appops' intention.

Is there a way to prevent such apps from accessing real data without letting them quit automatically?

I know XPrivacy is a good Xposed module, but it doesn't run on Android 7


问:
can't install APK on Android device running kernel version 3.10.49
I am trying to install the Android Terminal Emulator by Jack Palevich (https://github.com/jackpal/Android-Terminal-Emulator)

I have tried installing various versions of this application, including this fork: https://github.com/dvhh/Android-Terminal-Emulator

I am unable to install the application on my Android device running kernel version 3.10.49 (jenkins@80b25755b68d #1 Fri Aug 18 23:17:19 JST 2017)

When running from the device, I get an error saying installation from unknown sources is forbidden (even though unknown sources are enabled in the settings)

Installation through adb reveals the real error:

```<code>>adb install C:\term-release.apk
C:\term-release.apk: 1 file pushed. 2.7 MB/s (572662 bytes in 0.199s)
        pkg: /data/local/tmp/term-release.apk
Failure [INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES]
</code>```

Device is a Kyocera DuraXE flip phone.

I have Googled this error and tried every solution I found.

I cannot uninstall and reinstall the app because the app is not installed to begin with

I have made sure unknown sources are enabled

I have tried rebooting the device

There are no "overlays" running on the device that I am aware of. It's a brand-new phone fresh from factory.

I'm at a complete loss as to what to do. I have also tried installing alternate software like termux but I get the same errors every time.

I tried running it on the device from Android Studio as well. Here is the result:

```<code>01/05 12:49:12: Launching Term
$ adb push C:\Users\myusername\ApkProjects\Term\Term.apk /data/local/tmp/jackpal.androidterm
$ adb shell pm install -t -r "/data/local/tmp/jackpal.androidterm"
    pkg: /data/local/tmp/jackpal.androidterm
Failure [INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES]

$ adb shell pm uninstall jackpal.androidterm
DELETE_FAILED_INTERNAL_ERROR
Error while Installing APK
</code>```

It gives me a pop up saying there was an error installing and to try uninstalling the package, but when I click OK i get "DELETE_FAILED_INTERNAL_ERROR", probably because the app isn't actually installed.

At a complete loss what to do


问:
Restrict app network access on Android Oreo
Two days ago, I got android oreo 8.0 update for my xiaomi mi A1 phone which is a device based on Android One. But one of the features which I loved the most before Oreo was complete control of network access for specific apps. When I was using nougat, I could completely allow or block network access to certain apps in both mobile and wifi networks separately. But after oreo update, that option is gone. I can now only disable the background data usage but can't block the network access of an app completely. Even if i set the wifi network as metered one and disable background network access of an app, it still uses the network and keeps consuming my data.

It's kind of disappointing how the developers gave us super granular control over notifications but removed a very useful feature, at least for me, which was already there in nougat. For those who don't know about it, the option is available in data usage section, when you tap the three dots in upper right corner, two options come up. One is mobile network and other was app network access. Unfortunately, it's not there anymore in Oreo.

Although, I found a solution, a temporary one. I started using no root firewall app from play store and it did the work but it has limitation. It creates its own vpn to pass the network data for the specific app. As long as it's running, your choice of allowing or blocking network access for a certain app will be as per your choice. But what if i use a paid vpn service, which I do, the vpn created by no root firewall app will get disconnected as you can't run two vpn simultaneously in phone and your network access choice for apps won't work anymore. Well that's unfortunate, isn't it! If you haven't tried this yet, try it once.

I could do this without no root firewall app on nougat but I have to use this app on oreo

The built-in option for network access control was good but i don't know why they removed it. It's still there on xiaomi phones with MIUI but not on A1 as it's running on the android one. If any developer from Google is reading this then please restore that option back as it was in nougat. Also for MI A1 phone.

There are other issues also with Oreo on Mi A1. They say oreo has gotten more snappier and smoother but I think not more than it was in nougat. It's become more sluggish. I can't scroll through apps in a folder with smooth effect. I can almost see the lagging scroll, even the app drawer has a slight lag when it goes up or down. The battery backup has reduced than it was on nougat and most annoying, I can't remove the system notifications completely which keeps showing me apps running in the background. Well, I want it to run in background and I want their notifications but I don't need an extra notification badge telling me which are those apps, all I can do is snooze it but no more than 2 hours. The most annoying feature taking notifications space and good for nothing.

I think the lag and sluggish UI for A1 will be fixed later but the annoying notification and options for app network access really need some attention.

There are many more things but i hope it's already long enough. Sometimes, I regret updating to oreo. I don't need that picture in picture or super granular notification control which I could do it previously also on nougat. I could turn off notifications of an app completely. Whether I want or don't want, no need of giving options like marketing notifications, miscellaneous notifications, etc. I mean, most of the people don't even need such options. I just want that inbuilt app network access option in data usage section which would allow me to have complete control over network access of certain applications because sometimes I just want to go back to nougat but I think I can't do it without losing my data.

Thank you for reading.


问:
What data can be retrieved from a broken discarded tablet
I had a Lenovo Tab 2 A7-20F, purchased in August of 2016, one of if not the cheapest model for around £50.

It began to fail here and there and I decided to get rid of it.

I started by smashing it in order to make any data unusable, but it was making a mess so I wrapped it up in a thick layer of freezer bags so as not to cut myself - and decided to think later about what to do.

I have recently thrown it out by accident and bins have since been emptied. Not in recycling or anything, just a regular dust bin.

I'm now a little concerned about my Wi-Fi password which was saved on it but is quite some hassle to change.

The tablet was totally unusable, screen smashed up, and I think the tablet had started to split right through. Does changing my Wi-Fi password sound unhealthily cautious ?

Now, assuming that all data inside is retrievable, and given that I only ever logged into anything in incognito mode, should I worry about other passwords ?

Finally, I have logged out of my Google account on that device thanks to that feature of Google's online services, but might the password still be in my tablet ?

Thanks


问:
Accessing the menu button using only a mouse
I got my first tablet (Samsung Galaxy Tab A (2017), running Android 7.1.1).  I am physically disabled, and I'm unable to actually touch the screen.  But I can use a computer mouse, so thanks to Android's support for mouse control via a USB OTG cable, I'm able to use the operating system and do most everything.

One thing I haven't found in the operating system, though, is a Menu button like this:

My tablet does have a physical/hardware Menu button -- the button to the left of the home button -- like in this photo:

But since I can't press physical buttons on the tablet, I want to access the Menu with the mouse only, in the operating system.  Is this possible?


问:
Stop Adding Home Screens on App Install
I do not want to turn off new icons being added to the Home Screen.

Instead there is a problem where my tablet will keep adding new Home Screens.  It's curious, because there is plenty of space for new icons on the previous page.

The tablet is Galaxy Tab S3 with Android 7.0 and the default launcher.

Title: Stop Adding Home Screens on App Install


问:
How to answer whatsapp calls by pressing the home button?
Its just for accessibility, as android supports answering phone calls using home button, I want to do this with whatsapp calls too.</p>


问:
LOS Recorder without unlocking
It is possible to use the camera without unlocking the Phone (I am using Lineage OS 14.1 on Samsung S4)

But now I would also like to use the Lineage OS Recorder App without unlocking. I often use it for short notices to myself and its really a pain to always type my unlock code for 5 seconds of recording...

Is there a way to use the Recorder App that way? Or is there any other app on fdroid to do so?

Title: LOS Recorder without unlocking


问:
LineageOS - bug when text is copied
I upgrade my phone to LineageOS 14. When I try copy text (long press) or if i copy text to clipboard by button and try paste him - any application is crashed.

```<code>Drawable cannot be cast to VectorDrawable
</code>```

Why it does?

Micromax Q415, default android lollipop, flash rom portable

Title: LineageOS - bug when text is copied


问:
How to unlock glitching fingerprint service forcing me wait for 30 minutes?
Samsung Galaxy S7 fingerpring is glitching: if my finger is wet or dusty, it is trying to detect this case and provide special processing for it. Unfortunately, it can't detect this well and this causing dead loop: it asks to push fingerprint, then it asks to wash button and push again and so on. Pin code entrance doesn't occur.

Today my phone was just lying on the sofa and locked itself for 30 minutes. I hate when irons disobey me! How to unlock it now?

How to absolutely guarantee such thing will never happen again? Both Android and Samsung are glitchy enough itself to have additionally locking for 30 minutes feature!

UPDATE

I was able to unlock my phone via Samsung web service. Then I disabled fingerprints and locked phone to try new unlock method and found, that waiting period is still not ended!


问:
Facebook Messenger - No ring tone for calls
I got a Lenovo Essential tablet. I have a problem that when someone call me via Facebook Messenger, the table only vibrates, it doesn't call any sound at all. But the sound for Facebook messenger's notification like - incoming inbox message, miss calls, still works. Looks like only the ring tone for calls is not working.

what I have tried that doesn't work:

Clear data for Facebook messenger.

Re-install Facebook messenger.

In Facebook messenger -> Notifications & Sounds, I enabled everything.

I check this article

Go to Settings-apps- messenger. In there will be an option
  that says notifications. For some reason it was set to low priority
  and silent. I changed it and it's been working perfectly

but I can't find any thing (I see "Show notifications" checkbox, but it has already been checked)

(sorry for the image's quality, I can't figure out how to take screenshot with this Lenovo Essential tablet)

So how can I enable ring tone for calls in Facebook Messenger?


问:
SSHDroid cannot write sd card
The title says it all.

Running android 7.1 not rooted device, I am running sshDroid on android device, ssh into it from my laptop.

When I ssh into the device and check the permissions for the SD Card it's owned by root.

Without ROOT access, can I ssh and copy files to the SD Card from my machine?

Title: SSHDroid cannot write sd card


问:
Do older Android versions support SHA-256?
We are updating our certs. for our MDM program, and that includes rolling out SHA-256. That being said, do all Android versions support SHA-256 (especially 4.0.3 and 4.1.1)?</p>


问:
How to "tell" Android to output/mirror its display?
With inspiration from this question, I purchased this docking station to be used with my new tablet (Samsung Galaxy Tab A (2017), running Android 7.1.1):

StarTech HDMI and DVI/VGA Dual-Monitor Docking Station for Laptops - USB 3.0
(USB3SDOCKHDV)

Top:

Rear:

Side:

The docking station has multiple inputs (DVI, HDMI, VGA, USB 3.0), and I am able to connect the docking station to the Samsung tablet via a USB 3.0 to USB C adapter.  The docking station does not explicitly support Android, but I thought I would give it a try.

I know that the docking station is working -- to some extent, at least -- because if I connect a USB mouse to one of the USB 3.0 ports, I am able to access Android with the mouse.

However, when I connect a VGA monitor to the docking station, nothing appears on the monitor.  Likewise, when I connect an HDMI monitor to the docking station, nothing appears on the monitor.

Is there any way to "tell" the Android OS to output its screen to the docking station, via the USB C output on the tablet?  In other words, before I return the docking station to the retailer, I want to make sure that there is nothing else I can try.

When I go to Settings > Display, I don't see any option "Export screen to external display via USB C output" or something like that.  Is there any such option?


问:
Super resolution photos for phones with dual cameras?
Is it possible to use Android phones that have a dual camera system to combine both images to come out with a higher level of resolution and less noise?

And is there already an app/program that can do this?


问:
Strange system app called Helper eating too much battery , data , CPU and freezing device
My phone usually work well until recently it turned out that battery gets really hot and camera Section that the phone starts popping that I should remove battery . when I look at battery usage I realise that Helper was the second after screen . what is even strange is that it is not found in system apps but there's no way to uninstall it .can only force stop and disable. But that doesn't help as though disabled , it still wakes up and I have to keep force stopping a disabled app.
It doesn't want me to connect to WiFi . A soft reset doesn't do anything only a hard reset does .but once I start reinstalling my apps it starts again .All my apps are from play store and i m no longer using beta apps .
Also the app is not package helper . what's this  app and how can I stop it
Device is android 6.0 unrooted


问:
Disable Audio device?
I bought a phone in Japan(Huawei P10) and in Japan by law the camera app has to make shutter sound. But, when I am back to my country, I want to disable that, because it's obviously annoying.

Do not disturb doesn't work. I already renamed the shutter sound files, which disabled it in apps like snapchat and whatsapp, but the stock camera app still makes a sound.
So I thought, that I maybe could disable the audio device and enable it again if I need it. Do you know how?

I have magisk and xposed if that helps.

I want to use the stock camera app and an open-source way (especially with an "accessibility service"-app)

Title: Disable Audio device?


问:
Mi A1 fast charging is baffling
Mi A1 when it was launched (Nougat) did not have fast charging capability , though the Qualcomm chip is capable of it. It was speculated that this was done to keep the cost to fit "budget" phone model

This year it was upgraded to Oreo .Beta testing reports in December last year highlighted that fast charging has been enabled but required a Quick charger

To my utter surprise, after Oreo upgrade miA1 gives fast charging with conventional 5V 2A chargers! Read that again. It's true and I have tested with all chargers I have , which are mostly normal chargers . The  same charging rate I see with the only fast charger I have (Moto Turbo charger). As an example with 60 % of charge it shows 1800 mA which is typical of fast charging with any charger

It's well documented that fast charging requires a special charger which negotiates with the battery the power requirements and here you have the case of fast charging happening with normal charger

It's driving me crazy and I have searched Internet but couldn't find how it is possible

Question: How is this possible?

Fun fact : This is not the only strange thing with this device. Unlocking boot loader doesn't wipe data

Title: Mi A1 fast charging is baffling


问:
New screen flickering when charged
i had my screen broken unfortunately. I received a replacement that i don't  know if it is an official one, that was excellent until i put it to charge. The screen lightly flickers.  I don't have an official charger and mine outputs 5v and 0.18A. when the phone is down the screen is ok. It flickers when i touch the metal to the side of the battery.

This happens even when minimal pressure which suggests a grounding issue? When non conductive materials touch the side - even if with a lot of pressure nothing happens. And finally, this happens only when charging. My phone is Samsung Galaxy J5 (2016).

EDIT 1: I can confirm it is a grounding issue because when i touch the metal surface with a metal connected to a GND, the flickering stops completely

EDIT 2: I went to the repair shop and got an official Samsung charger (5v, 1.55A). The flickering has almost vanished. You have to pay real close attention to see a very slight flickering when it charges and you touch the metal surface around the screen. Still no clue on what is happening.

Title: New screen flickering when charged


问:
Battery Problem in Samsung Galaxy Tab GT-P7510
I have a Galaxy Tab 10.1 (GT-P7510) with Android 3.2 and I have the following problem:

I can´t turn on the tablet. I tried all the different ways with the power button, pressing 5, 10 , 100 seconds, nothing happens.

If I plug in to the power the tablet shows me 100% of the battery charged.

The only way to turn it on is with the tablet plugged into the power and press the power button plus the Volume +, then in the Android system recovery I have to choose reboot system now.

If I unplug it the tablet shuts down.

If I plug it in to the USB port the tablet doesn't work because the USB port doesn't have enough power to turn the tablet on. The tablet only turns on with the wall power supply.

I tried with the factory default in the Android System Recovery option, nothing happens.

Finally, the tablet shows fully charged when it's working and gives me the message "Battery full charged, please unplug the charger" If I do it the tablet will shut down.

Can anyone help me?

Is it possible that I have to calibrate the Battery? How can I do it?


问:
How can I use Activity Manager to request alerts/notifications/etc via ADB?
I am working on a project where I need to provision a large batch of phones (Samsung S7/S7 Edge, unrooted, no SIM, if that's relevant) for use in the GearVR at a semi-public event. I need to disable any and all alerts/toasts/notifications/etc so that our application is not interrupted while the experience is running.

I believe I have already determined all the required settings and services I need to configure/disable, and have been able to automate applying these settings via ADB. I now need some way to test that they are actually doing what I want.

I think the way to do this is by using Activity Manager to launch various intents, but after reading through the AM and Intent docs I'm still confused on how to do this, or if it's even possible.

A basic example of AM control from ADB is something like this:

```<code>adb shell am start -a "android.intent.action.VIEW" -d "http://developer.android.com"
</code>```

How could I leverage Activity Manager to do things like:

Raise an alert dialog with an arbitrary string, or ask the system to show me some kind of dialog from an existing app with the right manifest permissions?

Raise a toast/heads up/alarm/etc with an arbitrary string, or request a toast/heads up/alarm/etc from some existing system application or setting?

Am I even on the right path? I've tried exploring service calls, but that only left me more confused.


问:
Does hibernation keep an app's memory locked and unusable by other apps?
Is it possible that hibernating too many apps (with Greenify or the like) might lead to memory allocation problems via each hibernated app's memory getting locked until the app itself is woken up and frees that memory again? Or does the app's RAM get dumped somewhere on hibernation, making this a non-issue?</p>


问:
Phone reports insufficient storage despite having a lot of free space
The problem I'm having regards a cheap Chinese phone which is rebranded and sold in my country as Manta MSP94501 Easy Selfie. It runs Android 5.1 (with a KingRoot which I installed) and lately, it started very aggressively reporting lack of free storage - the widgets don't want to start, I get constant alerts that this or that couldn't be updated because of insufficient storage, that Google Play Services won't work until they're updated (and yet they don't want to be updated cause - again - insufficient storage), I can't install any new app either and the phone started getting a bit sluggish on top of all that.

The problem is, this phone has 8GB internal storage (half of which is allegedly the one for the phone and not the system) and is virtually empty (a few photos and videos, literally not more than a few apps). When you go into Settings->Storage, it reports that there's 4.51GB total for the phone storage, with 252MB free and yet the specific list below doesn't reflect that at all, as it reads: 3MB for Apps, 601MB for Photos and Videos, 40KB for Sounds, 348KB for Downloads, 24MB for Cache and 8.3MB for Other. As you can see, this does not sum up to 4.3GB at all - and the coloured bar above the list shows the storage correctly (that is, 3/4ths of it is marked grey as empty space - which is the truth!) but still, all the readings show otherwise, alerting about the 252 free megabytes.

What can I do? I've tried clearing the cache from recovery, clearing Google Play cache - but all to no avail. Here are also the pictures of what I described above (in Polish but those are pretty self-evident I think and I also translated above): https://imgur.com/a/YfTTJ

Any suggestions? :(


问:
Is there any comprehensive way of hiding an app entirely with or without root access?
By "comprehensive" I mean a method likely not easy to detect.

Is there any way to hide an app icon from any and every launcher?, it is not a problem if such a way requires root access installed. people around me are super geeks and theres little chances my methods will go unnoticed. I'm looking for a comprehensive solution to this problem so the usual "hide-app-from-launcher or change-its-icon or disable-this-app or use-an-app-to-hide-this-app" methods riddling the internet are ineffective for my situation.

To add context, I'm trying to install SSHDroid (an ssh-server) on my phone running Resurrection Remix with Magisk 15 and Nougat. the problem is I can't find a way to hide SSHDroid universally (I don't think there is any way to hide it from the Installed Applications list under Settings though). the server needs to be running day-in and `out without anyone noticing for my purposes.