问:
How do I block specific contact groups on an Android Note? On the weekend I don't want to be bothered by the 101 people taged in "workgroup"
How do I block specific contact groups on a Note 10 lite (Android version 10, UI 2.5)? On the weekend I don't want to be bothered by the 101 people taged in "Workgroup".

Basically, I don't want to be contacted on the weekend by "Workgroup",and still yet, receive texts and calls from outside of the blocked group (I want the ability to temporarily silence whole "groups" on my Android Note).


问:
How do I get the kernel for this phone?
I think companies are legally required to publish the kernel for their phone somewhere.

I bought a phone derived from this one: https://www.paxtechnology.com/android-smart-pos and can't find the kernel for it. On "legal information" on android settings, I enter a very large HTML file that I cannot navigate properly and I don't know what it does.

It's the Pax M30 by the way

ContentLicense: CC BY-SA 4.0

Title: How do I get the kernel for this phone?


问:
Cannot get proxy to work on bluestacks using command line
I am having a lot of problems getting this to work. I am following this tutorial.

Some sources say you need to put quotes in the command line.

Here is what the command looks like. I set cmd.exe to run with admin privileges.  I cannot get it to work with quotes or without:

Here is what the file manager looks like:

The program exists and is running but I cannot get it to work via the command line.

I am using Windows 11 and bluestacks version 5.

Also, I have the proxy server I want to use. So can this be done with a single line command with the proxy server?


问:
Unidentified alert (vibration and beep) every 5 minutes, even with sounds set to Mute and DND enabled
Every 5 minutes exactly, my Galaxy S9 G960U1 running Android 10 vibrates and then gives me a flat-toned beep lasting about half a second. It's not associated with any notifications, toasts, or changes in status bar icons. It happens even with sounds set to Mute, and with Do not disturb and Airplane mode turned on! The only thing that stops the beep is Mute all sounds, but even then it still vibrates, and of course, muting all sounds isn't any sort of solution. The only saving grace is that if I have a headset connected, it only beeps through the headset. Another oddity is that I've checked through every alarm and notification sound available on my phone and it doesn't sound like any of them! I don't recall ever hearing this beep for anything else before.

I've tried all of the following:

Clearing notifications

Restarting the phone

Disabling NFC

Disabling Accessibility > Advanced Settings > Reminder alerts (it was off to
begin with, but I enabled and disabled it)

In-App Notifications,
disabling all notifications for every app that allows it

Disabling everything in Notifications settings except "Do not disturb"

Installing a notification history app

Disabling the Google app (suggested in a YouTube video about unknown notifications)

Clearing the cache partition

Additional information:

I haven't installed any new apps or system updates or made any configuration changes recently (except the above-mentioned notification history app). In fact, this started happening while I was in bed, this morning.

I have Don't auto-update apps set in the Play store, and haven't updated anything in the last 3 days

The 5-minute interval is based on when the phone was last started, not according to the clock, e.g. I was getting the vibration and beep on the hour mark, then at :05, :10, :15, :20, etc., but after restarting the phone at 5:05 it was happening at 5:07, 5:12, 5:17, etc. I verified that the first beep always comes 2 minutes (exactly 120 seconds) after the lock screen is displayed, and then exactly every 5 minutes, to the second, thereafter.

I understand that a factory reset would very likely get rid of the problem, but I don't consider that a solution, that's giving up without a solution, and the total time cost would be more than I can afford right now, so I really hope someone knows what's going on.


问:
How can I check for system updates without being forced to update my system?
I use a Google Pixel 6 with Android 12.

How can I check for system updates without being forced to update my system?

When I tapped on  check for updates in the settings, it then forces me to update my system:


问:
How to decrypt a recovered password on Samsung S6?
I have rooted my Samsung S6 so that I could recover wifi passwords. But the app Wifi password Recovery find an encrypted password.

Is it possible to find the original password?

If so, how can I do to see it?

Thanks for your help!


问:
How to check the model of the wifi chip on Android 9?
I'd like to know if there is an easy way (if possible without using the terminal) to get the model of the wifi chip on my Android 9 (Motorola moto g6 play). I found only very old methods, some of them based on apps that do not exist anymore.</p>


问:
Hide or change the power on device logo and model number of a Samsung tablet on power-on
For a huge restoration project, a 80's boombox with a TV, I (re-)use an older Samsung Tablet (SM-T650, rooted Android 4.4.4 ) to replace the CRT TV (and to give it some 'brains'). Already customized the tablet with new boot screens that fits the design of the boombox. The tablet it's design, factory default is working in portrait mode however I use it landscape mode (fits better).

I changed the bootscreens/bootanimations with 90 degrees rotated images but the device it's device power-on logo is still in portrait. That is an ugly detail and 'betrays' it is a tablet.

I wonder if it is possible to hide, remove or change the power-on logo? Also want to know how to do this. Any ideas?

Some pictures (tablet is placed on top of boombox for this purpose instead of mounted inside):

This is what I want to avoid, hide, remove or change:

Later on in the boot sequence (in correct orientation):


问:
What's the other half of the "To unlock your phone" message?
I've got a phone (I believe a Nexus Huawei 6p) that has a half-broken (the right half) screen. After trying a few unsuccessful passwords the phone has the message "To unlock your phone," and then the rest of the screen is broken. Does anyone happen to know what the rest of the message is?</p>


问:
How to stop the phone's adress book asking for synchronization with Messenger contacts?
I am using a Galaxy A41, Android version 10 maybe (honestly i can't make sense of the version indications in the Software information tab.)

Recently when i go to Phone -> Contacts (or Address book, i'm not sure of the translation) ; the phone will randomly display a popup asking me if i want to synchronize my phone contacts with my Messenger (im guessing facebook messenger) contacts. I don't want to do that ever, and i don't want to be asked for that.

Is there any way I can stop that popup from ever showing up ? I tend to use my contact list a lot, and it's becoming annoying to have that invasive and unwelcomed functionality trying to force itself upon me each time I want to make a call. I already tried to got to Settings -> Accounts -> uncheck Automatically synchronise datas (i don't use that at all apparently).

Thanks !

edit : Here is a screen capture of the popup - name of phone contacts are blurred for privacy concerns. The popup reads :

 " Activate Automatic synchronization ?
To synchronize your
contacts and keep them up-to-date on all your devices, activate
Automatic synchronization for Messenger.
 Cancel | Activate"


问:
How to transfer/clone data from one internal storage SD card to another?
So I've been using a micro SD card as internal storage. It's getting full, so I'd like to transfer the data to another micro SD card.

I tried cloning it, but for whatever reason (I think it's got to do with the encryption that makes it internal storage) it doesn't work properly. I managed to format the new card as internal storage as well, and I've got a card reader that I can insert into my phone. The phone recognizes the new card as internal storage, but none of the file managers I've tried see all three storages and will let me move the data from one card to the other.

Is there any way to correctly transfer the data without losing anything? Or am I just kinda hosed?


问:
Is there a way to setup multiple devices and/or synchronize apps or even manage multiple devices?
So, imagine you had 100 or more Android devices and you're asked to install 10 specific apps on each of them.

What would be the fastest way to do this?
Is there any way to manage multiple devices at once somehow?

I've seen "is there a way to automatize the setup/configuration of an android device?" but it's an old question from 2017 and I wonder whether there is anything out there by now that could make this easier.

I don't even dare to ask whether there exist more sophisticated tools by now which would even allow me to manage devices as an administrator or something like that.


问:
How can I backup app data on a user that is not an owner?
I have tried both Samsung Smart Switch and backing up via the Samsung account option in the settings, both of which require my user to be an owner/administrator. The problem is that both of these methods work just fine for transferring app data on my owner user, but none of the data on my other user seems to backup properly.

After extensive research, it appears that I have fallen into a catch 22; I can only backup data on an owner user, but to change a non-owner user to an owner I need to reset my tablet, deleting all tablet data.

Does anyone know of a way I could either change a non-owner user to an owner without data loss, or backup app data on a non-owner user?


问:
TalkBack: accessibility: sound cues instead of all text being read, in order to speed up everything
I am using Android on a Realme 6 phone.

When reading interface elements out with TalkBack, it wastes a lot of time reading out what is on the screen as I explore by touch or use linear navigation.

It would be nice if TalkBack had a feature where you could switch back and forth between normal mode and another "quick cue" mode.

In this quick cue mode, when TalkBack encounters an element, it plays a very brief sound corresponding to the type of widget encountered. The user learns to recognize these sounds and can browse quickly through the interface without being distracted, closer to how a seeing user of the interface would.

When the user wants to know what type of element the sound corresponds to, the user swipes left then up then right, to be reminded. Otherwise scrolls quickly till they get to what they want, quickly building a mental idea of what's there.

To read out the text of a button, since the sound cue alone is played out, the user swipes right then up the left. The button text, which takes longer to be read out, is then read aloud. Or the user can switch back to normal mode and proceed.

The sound cues may correspond to things like "time", "share button", "tool button", "add button", "modify button", "delete button", "done button", "submit button", "text widget", "caption", "text entry widget", and so on. Markup, following a given markup XML prefix for the standard set of standardized sounds included, would be supplied, and available in the source code to support this, for the benefit of these very blind users so that they may be able to hear these standard assigned cues for faster less stressful browsing in TalkBack than I'd text would have to be read out everywhere.

Many times when we view a time widget we don't read the time out. Similarly, when viewing a share button, we don't read out "share" to ourselves, we simply recognize the button. With a sound cue, the non-seeing users experience corresponds more closely to a seeing user's experience. This would thus enhance the blind user's ability to use a variety of apps, including apps that were designed primarily for seeing users, but that included blind user support. Perhaps, in many cases, a separate interface should be designed and made accessible to blind users in apps. However, it is not guaranteed that developers would do this, although it would only be right if they were pushed to do this through development tools, and, in this case, how would a blind user access the separate blind user-specific interface to the given apps supporting this feature.

There could be a special swipe gesture in TalkBack to switch between normal mode and quick cue mode. For instance, up then right then down, or up then left then down.

Does TalkBack currently support such a behavior, or does anyone know whether Google and Android have plans to support this behavior for blind users in the future?

Thanks.


问:
Alternative mode to TalkBack for blind users: better support for blindness?
I was wondering about a question I raised in another post about accessibility. That is, how would an app provide a separate interface for blind users? The Android system, would have to support a special feature, "navigate in blind mode". Android already has TalkBack, but that is designed to explore apps in their standard layout, a layout that may not always be completely accessible or convenient for blind users, who might require or get more benefit from something else.

How does Android provide support, if any, for this. Is there a switch for blind and non blind mode which does not end up in being TalkBack, that can be used?

Thanks.


问:
What is vendor_audit and why is it spamming my logs?
I have an app spamming my logcat messages and I assume it is responsible for slow operation of my device. The logs all look like this and there are thousands:

```<code>2022-01-18 18:02:19.204 646-646/? E/audit: type=1400 audit(1642345453.765:312963): avc:  denied  { read } for  pid=1173 comm=87654F456789656Z646C1234567890 name="gpuclk" dev="sysfs" ino=74938 scontext=u:r:system_server:s0 tcontext=u:object_r:vendor_sysfs_kgsl_gpuclk:s0 tclass=file permissive=0 SEPF_SV-X825_11_0010 audit_filtered
</code>```

I used adb shell ps -A to list my processes and the spamming PID is the following line:

```<code>vendor_audit    646      1 2142068   2592 0                   0 S auditd
</code>```

Also I checked the other PID mentioned in the log, it's this one:

```<code>system         1173    673 11627288 282980 0                  0 S system_server
</code>```

Note: I do not know what all these numbers in the log output are, I assume some random device identifiers and similar. Just to be on the safe side, I changed them before uploading, but I kept the length the same. I left the PID numbers

Device is a Galaxy Tab S5e with the preinstalled system, not rooted.


问:
Use monitor as portrait mode using Miracast
I want to cast my mobile screen to an LED monitor which has an HDMI port using Miracast. The device is not purchased, But the testing is done by an Android TV now.

If the mobile is in landscape mode, the monitor will be filled with the mobile screen content. But I need to use the monitor in portrait mode permanently with the mobile also in portrait mode. Is there any way to rotate the casted content by -90 degrees?

Mobile content

Actual result in monitor

Required result in monitor

I am using two mobile phones for casting with the Google home application

1. Lenovo P2 (Android 7)

2. LG Q6 (Android 8.1)

Also while testing the mirroring, I felt there is a delay appears in the TV. Also, the text is blurred on the screen.

Note: I can see some similar questions are there, but nothing seems helpful.


问:
Bluetooth Audio Codec selection: what do I get when using "best effort" setting?
Hello Everyone I am trying to find which quality system uses for LDAC best effort settings in android
from googling I found it depends device to device

So there is Three settings for LDAC 330,660,990 kbps for audio transmission I wanna find which rate my device uses for transmission.

I tried finding in ADB Logcat is this correct that it is using 990 kbps  transmission rate setting or its just showing if my device supports not actually using?

```<code>01-19 09:35:58.489  7495  7567 I bt_stack: [INFO:a2dp_encoding.cc(293)] a2dp_get_selected_hal_codec_config: CodecConfiguration={.codecType = LDAC, .encodedAudioBitrate = 990000, .peerMtu = 667, .isScmstEnabled = 0, .config = {.ldacConfig = {.sampleRate = RATE_96000, .channelMode = STEREO, .qualityIndex = QUALITY_ABR, .bitsPerSample = BITS_32}}}

01-19 09:35:58.489  7495  7567 I bt_stack: [INFO:codec_status.cc(565)] IsCodecOffloadingEnabled: software codec={.codecType = LDAC, .encodedAudioBitrate = 990000, .peerMtu = 667, .isScmstEnabled = 0, .config = {.ldacConfig = {.sampleRate = RATE_96000, .channelMode = STEREO, .qualityIndex = QUALITY_ABR, .bitsPerSample = BITS_32}}}
</code>```


问:
Alarm Keeps Turning Off By Itself
I set 3 alarms in the morning and they all keep turning themselves off. Is this a common problem and/or is there a fix?
Edit: It's a galaxy note 9 and the alarms do not ring. Doesn't matter what volume my phone and its various sound settings are set to, doesn't matter that I have them on a weekday repeat timer, some days the alarms just refuse to function.

My phone will "behave" for a few days then do this for seemingly no reason. It started some months ago and its gotten to where I've gone from setting the one alarm, to two, to three, and they're all turning off. Today it actually gave me notifications though. Half an hour before each alarm I got a silent notification asking if I wished to turn them off. I was asleep so I obviously didn't see them or interact with my phone. I'm lucky I woke up with enough time to rush and get to work.

Title: Alarm Keeps Turning Off By Itself


问:
How to password protect users on Android?
at home we share a tablet using the multi user feature of Android, which is good enough.
That said, switching users has no password protection whatsoever, so other users could log in my user and see all my mail etc...

Is there a way to protect users with passwords just like on Mac or Windows machine?


问:
Android lost disk space
in my Huawei P10 Pro 64Gb the free space is running low, so I checked at the memory page to have a look where all the space is allocated.

So, in the following screenshot, some things are to me not so clear.. The sum of the space for each single item type (images, video..) is 46Gb, but the bar on the top of the view says that the total is 57,34Gb!! So.. where ~11Gb of data are gone lost? Are they OS images, updates, patches downloaded in the past time and never cleaned by the system, once installed?

Second: 26,8Gb Apps is a huge disk space. I've about 150 different Apps installed on my phone, so each App should have a weight of about ~190Mb.. and this is impossible! Ok Facebook, Whatsapp, Instagram with all the data space, but there are many little apps that are less than 10Mb.. Really impossibile to have 26,8Gb used only by Apps!

What seems to me is that in this 4 years of smartphone life, the occupied space growed up constantly, like if somewhat in the backgroud eated space without cleaning the "garbage". Ok for the new pictures and video, but all the rest remained the same, in terms of installed Apps.

Now, what can I do to understand where this space is left, and how to manually delete garbage and recover some free space back?

Thank you!

Title: Android lost disk space


问:
How to investigate what is hogging disk space
Even after cleaning all picture and documents, and most applications, on my tablet using standard Android tools, the internal storage is still reported as full.

I now experience similar problems on my much newer Samsung phone.
I suspect some applications may leave some data behind even after uninstallation.

On PC I would simply use trusty low level file manager, like Total Commander and let it compute actual (content) size of all directories recursively and focused on biggest culprits.

But on Android I struggle to find file manager application to do something similar.

I was also warned that no file management app would be limited in wider directory access to do such search.

So, how to investigate what is hogging my disk space?


问:
How can you stop apps from jacking around with the navigation buttons on Android 9?
This is a screenshot of my phone:

The app in the screenshot has changed the foreground color of the navigation bar from what I set it to (white) to black, making it nearly invisible. It also added a booby-trap button on the left. Pressing and holding it makes the navigation bar disappear, and then it's tricky to get it back.

I want to prevent apps from doing this. I don't want apps to be able to change the navigation bar background color, change the navigation bar foreground color, remove the navigation bar, or add the booby-trap button.

Apparently, it used to be possible to get control of the navigation bar back by installing an app called "Xposed". But now the only app with that name on Google Play is a social media app, and there's an "Xposed detector" that seems to be designed to detect the original app.

I also hear that it used to be possible to deny an app permission to go to "full screen" mode, which would deny apps one way of removing the navigation bar. But there seems to be no such permission now, and there's another way to remove it.

Is there any way left to stop app developers from making my phone unusable?


问:
Can I unlock my Samsung Tablet without Internet, or can I access internet while locked out?
I've locked myself out of my tablet. I haven't used it since high school, and forgot the password! It's a Samsung Tab E from 2015

I was able to find all the features for Find My Mobile, since I have a Samsung account registered with the Tablet, so I could hypothetically reset my password or get rid of the lock altogether - but, my tablet isn't connected to the internet, and I can't connect until I unlock my tablet :/

So, is there a way to connect to the internet without unlocking my tablet, or unlocking my tablet without the internet? I'm open to suggestions outside those offered in Find My Mobile


问:
How can I use my old Verizon note 8 without set up
I switched to a different carrier and I want to use my old Verizon Note 8 as a simple MP3 player. I did a factory reset on it and when it boots up it wants to go through a whole setup process including signing into my Google account and restoring everything. I don’t want to do this but there seems no way around it. I just want a blank phone, basically, a WiFi connection and an MP3 player (I like GMMP best) so I can have as much space for mp3 files as possible.

Do I need to root the phone? Is that the best way to accomplish this? I have never rooted a phone before, so I don’t really know what that entails.


问:
Android 12 (Pixel 5) Can I have old-style quick settings panel back somehow?
With the Android 12 upgrade, this settings menu became enormously large and a huge waste of space. I mean it is highlighted when it is turned on, nevertheless many of the buttons/switches have "On" or "Off" as an additional written text. Besides this, next to the icon which is commonly used they now waste space writing a pointless explanation like "Bluetooth". By this, about 3 times the screen space is needed per option, which results in less buttons shown on more screen space. Is there a way to have the much better Android 11 design without downgrading and the resulting security issues?

Thanks

Remark: there is no google-pixel-5  Tag available and I cannot create it.


问:
Is there a virtual space that has Android 8+?
I've known about virtual spaces such as VPhoneGaga, X8 Sandbox, and VMOS PRO. However, as far as I know, the highest Android that is run in those virtual environments is 7.1.2. I wonder if there's such a virtual space that has Android 8+ (8 - 12) in it.

I require that to run some apps that are only available on certain Android versions without actually downgrading or upgrading my phone. Or personally, I just want to try other Android versions.


问:
Synchronizing Signal messenger chat history from iPad to Android
Some time ago I added Signal to my iPad and without ado it fetched the complete chat history from my Android phone.

Now I had to reset my Android phone, and assuming the other way would work as well, I didn't create a backup.

Turns out: the respective option is missing under Account. Similarly, on the iPad, there is no option to backup everything.

Can this be done: synchronize the chat history of the Signal app on the iPad to a reinstalled Signal app on Android?

This is not what works for me: https://cight.co/backup-signal-ios-jailbreak/.


问:
How to stop Mobile chrome from discarding/reloading tabs?
I have been listening to some old radio shows on an archive website (radioechos) on my phone but if I pause what I am listening to and leave my phone for too long then when I return the tab has refreshed and I have lost my place in the show

I have managed to find many ways to stop chrome from doing such things on desktop but none for mobile chrome (chrome://discards/ does not appear to exist for mobile)


问:
Tecno F1 stuck on boot animation how to fix it?
getting this error.

I'm trying to hard reset my Tecno F1 pro


问:
Unlock samsung galaxy s2 too many pattern attempts and failed to login in gmail account then reset
My samsung galaxy s2 is locked, after restart, I see following welcome screen only

Here was my fault :(

Exceed to many pattern attempts

Then system asked for associated google account and password. Lack of internet connection I was failed to  login.

Then restart the galaxy sII by thinking that I would have chance to give pattern one more

But no lack I see ' S(logo) Samsung Galaxy SII ' on screen. I can not nothing to forward

Please help

Thanks

ContentLicense: CC BY-SA 3.0


问:
How to forbid a dual-SIM system from using mobile data on one SIM?
I set the SIM card for mobile data like this:

And it works most of the time. This SIM is Austrian and I spend most of my time in Austria.

However, when I venture into Slovakia — the country of the other SIM card — strange things begin to occur.

Once I place a normal GSM call, or send a GSM SMS using the Slovakian SIM card in Slovakia I get a notification from the provider that I transferred 50kb of data and that they automatically assigned me 500Mb until the end of day. That is their policy.

I spoke to the provider and the lady told me that this is simply not possible and the problem is in my phone.

Could this be a bug in the Android OS?

I am using a Samsung Galaxy A20e with Android 11.

Since I chose SIM2 for the mobile data, I don't even have an option to explicitly de-activate the data:

The evil SIM seems to have provided data for all sorts of apps:

EDIT

Mystery most likely solved — there seems to be a setting that overrides the ones in SIM card manager:


问:
Cannot communicate to Google servers when using Gapps on LineageOS 16 for Moto Z Play
I have Motorola Moto Z Play (Addison) on Android 8.0 Oreo. I installed LineageOS 16. It turns out that when I install any Gapps > ARM > Pico, Stock, etc. I can't log in to the Play Store, Gmail, Contacts, anything that involves Google. The following message appears:

Unable to login. There was a problem communicating with Google servers. Please try again later

I tried several things to solve the problem, but nothing works:

I tried to solve by manipulating the HOSTS file from the /etc folder.

I tried downloading the new version of WebView implementation, in developer mode.

Tried flashing LineageOS, starting the system, and then installing Gapps.

However, nothing solves it. I'm believing that it is a problem in this version of the unofficial LineageOS 16.

Anyone can help me, please?


问:
How do I disable the scrollbar in the original PDF viewer on Android?
I have an Android 10 Huawei P20. I have not installed any PDF reader apps.

I want to disable the scrollbar on the side when I'm reading PDFs. It's way too easy to accidentally hit and end up hundreds of pages off from where I was at, meanwhile not having nearly enough precision to actually be remotely useful.

I've been googling it for awhile, but every resource I find just screenshots stuff that looks nothing like the viewer my phone came with by default. Mine doesn't have any settings options as far as I can tell. It gives me a back button to close the file, following by the title of the file I have open, followed by a search option, a share option, and the three vertical buttons which open into options to send the file, download it (even if I opened it from my download folder), print it or send feedback to Google. I also can't find it in my apps list or any mention of pdfs in the settings options for my phone.


问:
contents of data partition in android
does anyone know what all content is stored in /data or userdata partition in android-10.

I see a lot of directories in /data like app-staging, misc, system, vendor.

what information is stored in these directories and how to check whether these files are encrypted or not

Title: contents of data partition in android


问:
Random/change MAC address for WiFi hotspot on Android 11
On Android 11, MAC address randomizations works fine when connecting the phone as a client to a WiFi network. However, I'm looking for a solution to randomize (or specify) the MAC address when sharing the internet connections to others using a WiFi hotspot.

For testing purposes, I use a OnePlus 5T with LineageOS dumpling (Android 11) which is rooted with Magisk.

I've tried setting the MAC address as I would in a normal Linux environment with ip link set dev  wlan1 address XX:XX:XX:XX:XX:XX. This does not work, however. ip a shows the custom MAC, but capturing the beacon frames emitted by the hotspot feature, the original MAC is still the source.


问:
caller App delayed
I use a Xiaomi Poco F3, the caller App is from Google (Phone 73.0.414822266).

When the phone starts ringing (a call) the "answer" button does not appear instantly, but only after 10 seconds. It's not convenient because often people have already hung up before I have time to answer.

What can I do to repair this problem?

Title: caller App delayed


问:
Samsung A71 Boot Loop / Flash Question
I have an A71 thats about a year and a half old.  Last week it entered into a boot loop that I can't get it out of.  The only thing I can do that halts the loop is putting it into download mode.  So I tried using Odin and flashed everything (BL, AP, CP, CSC) onto the phone.  When it rebooted, it rebooted back into the loop.  Prior to me doing anything, everyone at Verizon said get a new phone, but I still owe 200 on this one, so I would rather not get a new phone, out of principle if nothing else.  Any thoughts?</p>

Title: Samsung A71 Boot Loop / Flash Question


问:
How to mount external µSD card partition filesystems on Moto g Power?
A µSD card has several partitions, but the phone mounts only the vfat partition, not the ext4 partitions.

I see that there are existing internal ext4 filesystems, so it can handle that type.

Is there something I need to do to allow the ext4 µSD card partitions to be mounted?


问:
How to view a web page in full screen?
I want to use my old phone as a dashboard for Home Assistant. To do this I would like to view a web page in full screen.

With full screen I mean only show the web page itself with no address bar, no status / notification bar and no navigation / buttons bar. So completely full screen. Just like with full screen videos or games.

Is there a way to do this?

I don't care about which browser though I prefer Chrome. As long as it's able to run JS and to stay logged in and such.

It is a Pocophone F1 running Android 10 if that helps. It's not rooted, but I'm willing to do that if necessary.

Thanks in advance!

Title: How to view a web page in full screen?


问:
Can't restore backup - password unknown
I have a Google 6 Pro. I set up a "pattern" password (which I'll never do again - numbers and words are meant for my memory) and forgot the pattern.

After multiple tries, I decided to do a Factory Reset given I had saved all my contacts/apps/photos to Google.

After the factory reset, I was prompted to "set up phone with backup" - which I went do BUT THEN it asked me for the pattern password in order to set up using the backup which was my whole reason for doing a Factory Reset.

Is there a way to restore the backup (given I know the google mail account it's attached to and the password for that) without knowing the pattern?

Title: Can't restore backup - password unknown


问:
Error when doing TWRP backup, `recovery.log` shows nonexistent folders
The device is Samsung Galaxy A40 with Android 11, rooted with Magisk. I followed the suggestions contained in TWRP createTarFork() error 255 when backing up data.

In the first recovery.log, this folder appears: /data/tombstones/Zde6fQiwYL9jsduZ4MuTrD; so I deleted it. I relaunched the TWRP backup and, this time, the folder /data/vendor/M6TyZoh48zRvZQ97YG++eA/ZIaJXVgostztDsV2y4OuqC/GZ3BaraBTRfTO9HxQbjcqA/+TJ7GPVoY48 appears in the relative recovery.log, but it is non-existent.

Some idea?


问:
Wireless debugging option disabled after flight mode enabled and disabled
I am working on an app so need to connect to the device through wireless pairing. I frequently put the device in flight mode and this turns off the wireless option as desired. But when I switch off the flight mode, the wireless debugging option remains disabled. What's more, after manually enabling the wireless debugging, the IP port gets changed so I have to connect via adb connect and give the new IP port address every time.

Is there any way to make the device automatically enable the wireless option after the flight mode is deactivated (if it was enabled previously)? Or at least to force the device to use the same port number every time?


问:
Xiaomi Mi 9T Pro relating to Volte
Straight Talk, my carrier, informed me that my phone Xiaomi Mi 9T pro is not capable of using Volte. My phone states it is enabled for Volte. Also has an icon (volte) next to my status bar. I was also told I could lose my service end of Feb. 2022 if I did not get one of their phones. At this stage I don't know what to believe. Any answers?</p>

Title: Xiaomi Mi 9T Pro relating to Volte


问:
Whatsap not detecting phone local backup of chats when reinstalling whatsap
I am hoping you can help me.

I had WhatsApp version 2.21.8.17 on my POco F3 phone, it stopped working and has never backed up WhatsApp chats to Google drive, so I was forced to update the whattsapp to new version  2.22.2.73.

I backed up chats to phone local backup.

When I reinstalled the new WhatsApp it is not prompting to restore from local backup, and searching Google drive in which I have no backup.

I have looked in file manager, WhatsApp, databases and see the backup file mgstor.db.crypt14, and a few more files with dates. Do i have to do anything specific to the files, move them to different location so whatsapp detects it?

Why is WhatsApp not picking this local backup up when I login and verify my Number on WhatsApp.

From watching youtube videos looks simple and whatsap should restore from backup file from the phone, but it is not and not even attempting this step, and ask to check google drive where nothing is backed up.

CAN ANYONE HELP?


问:
Extremely inconsistent battery life without app usage
I'm using my Pixel 2 (non-XL) rather sporadically throughout the day, most of the time I just keep it in airplane mode with WiFi (and WiFi Call) enabled, except 1-2 hours outside, plus 30-60 minutes of active use per day.

Bought it shortly after release and so far I typically always had around 2 days of battery life per charge (varying +-6 hours or so).

Now and then the average battery estimate dropped, went back up, etc. as you'd expect from a "guesstimate".

However, over the last two or three weeks the estimate dropped lower and lower and this weekend I arrived at 24 hours while still dropping (even while fully idle and with full plane mode, mind you).

At first, I suspected maybe my router and/or repeater (providing both 2.4GHz and 5Ghz) are acting up or confusing the phone (like constantly swapping channels). However, this seems to not be the case as neither keeping full plane mode without WiFi nor turning off 5Ghz or the repeater changed anything.

In fact, I couldn't notice any significant difference between power consumption whether airplane mode is on or off (including WiFi, Bluetooth, and WiFi Call being on/off). No matter what I do, batterystats/Battery Historian (3.1 Docker Image) show an average drop of around 3-6% per hour while idle (face down). The drop is higher while used, obviously.

Apps wise I don't see any massive outlier either. Only CPU tasks running repeatedly throughout the day is qcom.glink-smem-native-xprt-rpm, typically running for about 5 seconds over 5 minutes. While the phone doesn't doze all the time, it's shown to regularly be in light or full doze. I don't see any regular long wake locks except com.google.android.gms once or twice over time.

However, one very odd thing that got my attention is the estimated/calculated Coulomb Charge shown in batterystats/Battery Historian (which also matches AccuBattery's estimate; assuming it does its standalone calculation).

Using one example bugreport I'm having at hand right now:

Time since charging
Estimated Charge Left
Estimated Battery Percentage

+0
2615mAh
100%

+1h
2573mAh
97%

+6h
2386mAh
77%

+10h
2284mAh
64%

+10h20m
2178mAh
59% (active use)

+12h
2136mAh
54%

+18h
1987mAh
35%

+22h
1861mAh
19%

The last 20% would feel significantly longer than the previous percentages (as it should with the estimate being off), but it definitely doesn't last as long as 1800mAh should last in comparison (i.e. phone turning off, then only showing the static white battery screen). Two weeks ago the lower end of the scale sat at around 500mAh at 12%. Tried deep discharging twice so far, without the situation changing significantly; although that wasn't back to back).

Looking for "Coulomb Charge" unfortunately didn't really reveal any useful hints so far. Anyone experienced this before? What would be the next interesting thing to look at or try? Also noteworthy I'm not eager on just wiping the phone, having to once again setup authenticator apps etc.


问:
Recover data from broken screen device when USB debugging turned off
My Redmi Note 8 phone screen is broken and I cannot control it. I need to get my photos and videos.

I try to google the problem but all answers I get need to enable debugging mode.

Is there a way to have the photos in my case?


问:
Can I move an App between SD card and Ram?
Is it possible to move an app to an SD card even if it cannot be used and then move it to internal memory to use it? Android 11 Galaxy A20 128GB SD card 32GB internal memory. Most of the answers I see are about 10 years old. Has anything changed?</p>


问:
How to have flashlight toggle on sharp shake motion with Tasker?
I would like to toggle the flashlight when shaking the phone sharply.

I have tried setting the Tasker profile to shake left-right + display state on + not proximity sensor. This still is very buggy. For example, while riding on the bus and using my phone the flashlight continuously turns on and off.

Any better ideas? Is there a way to make it two shakes, back to back?


问:
Amazon Music App loses state after a few hours
I am listening to audio books on the Amazon Music app in the morning but when I pause at a specific chapter and want to resume in the evening, it displays the horizontal line symbolizing the progress in a song but no title of the album and the song. At this point I can only go back to the main menu and have to search for the album again and find the right chapter.

How can I the prevent Amazon Music app from losing state?


问:
Is there anyway I can prevent an application from knowing that my developer option in on?
I use one application that doesn't run while developer option is turned on. Is there any way that I can disguise the application the developer option is turned off? (I know there is a way in rooted phone but can you help me to do same in an unrooted phone)</p>


问:
Recover deleted photos on LG Q6 (rooting)
I've downloaded 'Disk Drill' to search for the photos and it informed me that I have to root the device for 'Disk Drill' to work. I've tried both with Kingoroot and Kingroot to root the device, both failed.

How to root an LG Q6? Or, if there is another way that doesn't require rooting, how can I search for the deleted photos?


问:
How to extract boot.img from two ".bin" files (TF Flash Image)
I have got a TF Card flash image for my Hisense A6 (HLTE700T) and is trying to extract boot.img from it.

However, instead of payload.bin, two bin files are present in the zip file:

```<code>HLTE700T_TF (folder)
-- HLTE700T.bin (3.59GB)
-- HLTE700T_1.bin (1.00GB)
</code>```

Those boot.img extract tools only accept one input and fails to extract the files. How can I extract boot.img?

Here's the TF card flash image if needed: Google Drive (Link UPDATED)


问:
Audible app crashing on launch on Amazon Fire TV Stick 4K Max
I've just bought an Amazon Fire TV Stick 4K Max (Fire TV Home Version 6341067.1) running Fire OS 7.2.5.5 (PS7255/2444) and no matter which Audible version I install, it crashes every time I open it. Here's the Audible.log.

Of course, before uninstalling Audible, I'm deleting data and cache. Also, when I look for Audible in the Amazon Appstore, there's no result and it says by voice, "You're already an Audible member".

Is there a working version of Audible for Amazon Fire TV Stick 4K Max? Anyway, I just would like to be able to use Audible as I do with my phone.


问:
If I want to switch my stock ROM with a custom ROM, what partitions will be rewritten?
I have a Xiaomi Redmi Note 4x (mido) with the stock ROM installed – never flashed another ROM. I have bootloader unlocked, TWRP (3.6.0.9-0), and root access with Magisk. I have also made a NANDroid backup of all of my partitions, except the 0mb cache partitions. I want to try out a custom ROM, but might want to revert to the stock ROM using the NANDroid backup if something goes wrong.

My question is: which partitions will be rewritten if I flash a custom ROM? Arrow OS, for example. If I want to revert back to my stock ROM using the NANDroid backup, which partitions will I need to recover? I am a beginner here, sorry if this a bad question.


问:
Why is the green portion of the WiFi signal in the "Network cell info" app different between a Pixel 6 (Android 12) and a Galaxy S9 (Android 10)?
Google Pixel 6 (Android 12): as shown in the screenshot below, the green portion of the Wi-Fi signal goes to 55 decibel.

Samsung Galaxy S9 (Android 10): as shown in the screenshot below, the green portion of the Wi-Fi signal goes to ~63 decibel.

Why is the green portion of the Wi-Fi signal in the "Network cell info" app different between a Google Pixel 6 and a Samsung Galaxy S9?


问:
Disabling dm-verity using 9008(edl) mode?
My device blocks fastboot flash command, so I can only flash images using QFIL under 9008(edl) mode. By enabling OEM Unlock in dev settings, Magisk-patched boot image works well.

However, when I flash a self-builded OrangeFox recovery, device refuses to boot into recovery  (system rom is working) and shows the red g.co/ABH message:

```<code><!>
Your device is corrupt. It can't be trusted and will not boot.
...
</code>```

Since I have access to 9008/edl mode, can I disable dm-verity by modifying system with QFIL or something?


问:
Is there a way to get the old lock screen audio controls after the latest android update [android 12]?
For Android 12, the controls are not as good as the last android version. It used to have big buttons that are easy to see and push. Not it's contained in a regular notification box with small buttons. I just tried it and accidentally pressed next track instead of play.

If it makes a difference, I am using the Pixel 3.


问:
Is there an Android (webserver) app, allowing running a limited set of scripts on the device, remotely?
I was wondering, if there is some sort of an app, or a way, to run limited number of scripts or commands on an Android device over the network.

My use case is this: the device I have is inaccessible, and sometimes I'd like to turn it off, and turn the screen on. Since I cannot really touch the device to turn screen off (and use existing apps that deal with that use case), I'd like to have an app that starts a listening server on some port (say 7799) - which I could then access in a web browser on the local network via URL like, say, http:192.168.0.50:7799/run?script=screenoff.sh, which when processed by the server, would then blackout the screen.

I'm aware that I could enable adb (default port 5555) over TCP/IP (How can I connect to Android with ADB over TCP? - Stack Overflow), which basically enables this functionality - but I do not want the entire Android system open on the local network permanently. I'd just want to have only some functions (i.e. .sh scripts, something that could run in adb), that I myself choose, accessible/triggerable through a web server (that runs/keeps its port open permanently, and is thus started as a system service at boot of device).

Is there any application - or possibly, even a method in Android itself - that can be used for functionality like this?


问:
MI Redmi 2 stuck on Black Screen and not booting into Fastboot or recovery mode
sometime ago I installed Linage OS 17.1 on my MI Redmi 2 (1GB) and also resized my system partition to 2.00GB and after some time I faced some auto-restarting problems then I decided to install the stock rom and when I went to install it, In MI flash tool it gave me a error  then I searched about it and found this article - https://forum.xda-developers.com/t/how-to-erase-partition-table-of-redmi-2-prime-2a.3520410/

Then I followed it but I used the rom I have downloaded from somewhere else and then I clicked flash, after 1-2hrs it was not completed then my friend suggested me to use the file given in this article and cancel the on going flashing process, so I canceled it and after that moment

it is Stuck on Black screen, and not even booting into fastboot or Recovery mode and when I connect it to a power-source or my laptop it doesn't responds at all.

So, if anyone from you have any solution please tell me...

-Thanks


问:
How can I get into my Xiaomi Poco M2 (bootloader locked) that won't boot
I uninstalled the 'com.xiaomi.finddevice' package from my phone and on the next reboot the phone spent 5 minutes displaying the miui logo and then went to the recovery menu on its own.The recovery menu had options for : safe mode(which behaved the same as normal boot),wipe full data(not just the cache part.),reboot,mi assistant(which is to connect the phone to a pc using the MiPcSuite).

I tried the MiPcSuite but it wouldn't discover the device even though windows recognized it as a adb interface.I tried to access it separately from adb but the device was showed as locked.What I was trying to do was to somehow reinstall the package.

As far as I could figure out,the device needed to be turned on for me to access it via an adb shell(though usb debugging was enabled and my pc authorized the last time it booted) and fastboot had no such provision.

I was apprehensive of trying TWRP as the xda guide called for the bootloader to be unlocked prior to flashing. My device is not rooted, nor is the bootloader unlocked.I'm pretty sure the only thing preventing it from booting is the  'com.xiaomi.finddevice' package being uninstalled.

My device is a Xiaomi Poco M2 running android 11 and miui 12.5

Is there any way to reinstall the package or otherwise repair the device so it turns on or at least to retrieve my data.


问:
How do I add an icon for an installed application to one of the MIUI app icon screens?
My friend is using a device running MIUI 12.5.1.

They have installed some app, and then some kind of magic happened, in which they were told by the device that it would be cleaning up / removing icons of unused applications - even though the app had been used; and the icon went away. Now, they want to restore the icon. The app appears to be installed when examining Settings | Apps | Manage Apps.

My friend reports they can't find the icon anywhere, i.e. hasn't just been moved (although TBH when they told me this I got suspicious it's in some folder they're missing).

How can I restore the app icon? I've searched the Settings, and have not found anywhere this might be possible; app screen customization also only offers widgets, not app icons.


问:
Completely disable the call mode sound channel
This seems a regular issue to a lot of people without a true fix. The bad sound quality when in a call trought the Discord app.

For what I can understand, it is caused but the channel : the "phone sound channel" or "call mode" .

It seems that Discord had an option to switch between the two modes but that option has been removed.

So I'm looking at a more drastic solution : disabling the call mode channel entierly. And forcing every app to push their audio to the communication mode channel.

Is that possible ?

To me, this feature does not make any sense anyway. Why would you need a channel that not only lower every sounds you are listening to (including the voice of the person you are speaking with) as well as lowering the audio quality of your own microphone. If someone is knowlagable about why such thing exist, I would be very curious to know the explaination. On a practial sense, this feature confuse me a lot.

An funny addition : I use an app to track the kilometers I do during my walks. For every kilometers done, a voice announce the number, the time, ... When the voice is speaking, the channels are switched and the quality is suddently perfect. When the voice has finished, everything goes back to 2000 phone call quality. It shows that the phone is perfecly capable to handle the sound and that another app can trigger the switch.


问:
Can't boot into Recovery mode. Prestigio Multipad 2 Pro Duo 7.0
so I've had the Prestigio Multipad 2 Pro Duo 7.0 for a hell of a long time. Sitting in a box, the tablet worked fine when we bought it back in like 2015 for like 2 - 3 weeks and then we started to run into problems like the booting won't start or it just freezes randomly. And to fix it we'd have to wipe all the data using Android Recovery. Until we couldn't get the Recovery menu to pop-up anymore, the Volume Up/Down + Power did absolutely nothing. And here I am 7 years later trying to recover it yet again. Right now the tablet hasn't changed at all, still got the same problem and all that time sitting in a box did not help it. I was thinking of flashing new firmware to it and stuff like that but I have no idea how to do so if the tablet won't start (stuck on boot screen). There's no way for windows to recognize it.
What I tried in the meantime while playing around with it:

Replugging the battery back in

Installed drivers for ADB(still doesn't recognize it)

Tried booting into Recovery with Volume + Power buttons(tried it in every single scenario and it wouldn't work)

(later i realized ADB only works if the device is on..)

Literally any help would be appreciated.


问:
My Samsung J2 Prime version 5.4.0 stucked in CHECKING CONNECTION
I did HARD FORMAT my Samsung J2 Version 5.4.0 prime and stucked in CHECKING CONNECTION for 1 and a half day. I've tried restarting it and turning it off but it didn't worked. Tried the TALKBACK SETTINGS to use the PRIVACY POLICY (watched it from youtube) but it said "MY REQUEST IS DECLINED" it didn't worked also. Is there's another way to fix it? Please I badly need help.</p>


问:
Google will randomly convert any 7 digit number into a clickable link summoning your phone app, how do you turn that off?
This is like the weirdest thing on the pixel phones. looks kinda like this Literally all 7 digit numbers will be converted into a hyperlink and summon the phone app, assuming you want to call that number. It's a nightmare for communicating technical and scientific information.

There is no searchable term for even finding this feature name, settings or search engine. Is there literally no way to turn this off?


问:
How to see only new apps (not updates, or shows apps) in F-Droid "Latest" view?
I'd like to receive or browse new apps in F-Droid's app store.

Currently, it shows both new & updates.

Furthermore, I'd love to filter out apps by category, or by keywords, in F-Droid's "Latest" view or in "Categories".

is there a way to acheive it with current tools

is there an index I can download and grep / sort / query myself, either programmatically or via script?

OwnerDisplayName: Berry Tsakala


问:
What is the /data/misc folder?
I recently ditched my phone's stock ROM for a lightweight custom one. After transferring my files over, reinstalling apps and reconfiguring settings, I wanted to perform a full backup of the  phone's "initial state", just in case anything goes wrong. So, I went ahead and rebooted to recovery mode.

I'm using OrangeFox Recovery instead of TWRP (for those who don't know, it's based on TWRP but with more support for encrypted internal storage partitions, for my device at least). I started the backup process from there, only to find out some time later that it failed when copying the data partition, and a status code at the end of the message screen that did not make that much sense. Pulling the log file using adb pull revealed that the copy process failed to add a file from a subdirectory in the /data/misc folder.

```<code>I:Error adding file '/data/misc/9i0eBx6h5AsCJUBmui5L4C/ADq3lG3ELF4NPOElzFdltC' to '/sdcard1/Fox/BACKUPS/...../data.ext4.win000'
</code>```

A Google search did not come up with anything, only about specific files and subdirectories in the /data/misc folder.

So my questions are:

What is the /data/misc folder (especially the random named subdirectories) used for?

Since I cannot get the backup process complete at all because of this single error, is there a way to bypass or delete the file? (if it's not an important system file)

Title: What is the /data/misc folder?


问:
how to get specific android OS for testing
I have a problem that only happens on Android 8. I tried the emulators and was not able to recreate the problem. I need to find a way to get a test device with android 8 on it. I tried Amazon a few times but each phone that advertizes having Android 8 would show up with Android 9 or something else.

I currently have a Device: Galaxy J7 2018 (J737A).

Questions:

Is there a way to revert my device to android 8/8.1? I have looked and have not found anything for this model number. Need the stock version.

Is there any online store that sells devices where users can choose Android OS?

Is there any other way to recreate a bug and debug on specific versions of Android e.g. Android 8 Oreo?


问:
ADB backup with empty password
I have a non-rooted Android 12 device and I am trying to execute a procedure it used to work. I basically used to backup an application DB using the following commands:

Connect phone and grant permission from it

Create a folder and cd on it

adb backup -noapk com.myapp.blabla

Do not input any password

dd if="backup.ab" bs=1 skip=24 > compressed-data

printf "\x1f\x8b\x08\x00\x00\x00\x00\x00"| cat - compressed-data | gunzip -c > result.tar

tar xf lresult.tar

Now for some unknown reason, it looks like I have to type a password if I want to go through. In fact, there are two buttons: "do not back up" and "back up my data". The second one gets available only if you type some letter.

I have googled a lot, but it looks like nobody had this problem.

My version is:

```<code>adb --version
Android Debug Bridge
version 1.0.39 Version 1:8.1.0+r23-5ubuntu2
Installed as /usr/lib/android-sdk/platform-tools/adb
</code>```

Title: ADB backup with empty password


问:
How to switch slots without a computer or using TWRP?
I'm working with Android 9 Pie and I have one slot rooted (slot A) and the other is not (slot B). My reasoning to have my phone this way is because I need the non-rooted side to log in to the app I use for my job. (Even though it still works if I log in on slot B and then switch slots via TWRP without logging out).

I've tried the outdated Switch My Slot app which crashes immediately.

I'm mostly looking for a command I can run via termux to speed things up as opposed to just switching slots in TWRP which takes longer than just a command that would switch slots and reboot. How to switch slots without a computer or using TWRP?


问:
How to cut power to a already-switched-off phone without a removable battery
Note that I am already aware of this question. But it can not solve my question because my phone is already switched off.

I have Huawei without removable battery that I would prefer to cut power to because I got quite some disinfectant on it when it was already switched off. How I can cut power to my phone completely when it is already switched off (without switching it on)?


问:
Use Google Maps navigation without Google Location Accuracy improvement
Since today Google Maps necessitates me to turn on improvement of Location Accuracy when starting to navigate. If I tap "No thanks" navigation stops again. If I switch to another App and come back to Google Maps navigation also stops. This startet today using Android Auto without any update. I was changing the route and couldn't continue navigation without enabling this.

I don't want to enable using Wifi and mobile networks, because then Google collects my location data all the time. In addition, what makes it even worse, when this setting is on, Google links my public IP address with my location after some time. Thats why I really don't want this function enabled.

There is good GPS signal reception and location is detected within seconds, so this option is not necessary at all and while driving even not helpful at all, because GPS is then the only possibility to get a good location. On roads there is no Wifi Google could use to locate and celltower location is way too inaccurate.


问:
Port Forwarding Outside Local Network Using Phone Network
I want to forward my local port outside of network as does in routers but through phone's network. I having Android 11.

I have looked many pages and fortunately found this but this seems like it does forward my local server inside my local network, I'm newbie to networking.

adb shell "ip -4 addr"

```<code>1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
3: rmnet0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc mq state UNKNOWN group default qlen 1000
    inet 26.88.120.96/24 scope global rmnet0
       valid_lft forever preferred_lft forever
11: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    inet 192.168.36.69/24 brd 192.168.36.255 scope global wlan0
       valid_lft forever preferred_lft forever
26: rndis0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    inet 192.168.23.126/24 brd 192.168.23.255 scope global rndis0
       valid_lft forever preferred_lft forever

</code>```

Any help/link regrading this would be grateful. Sorry if i asked wrong question.


问:
Pixel 3 Android 12- Can't see Alert/Silent switch in app-specific notifications
I'm on a Pixel 3 running Android 12. See this screenshot, I'm trying to set this app to Silent notifications (In Settings > Notifications > App settings) but the option is no longer appearing:


问:
TTS voice not applied in Google Translate
The voice in Google Translate was configurable before Android 12. Any one knows how to do it on Android 12?

App: Google Translate and Google TTS
OS: Android 12
Phone: Pixel 5


问:
Root vivo y91i without unlocking bootloader
Is it possible to gain root access for vivo y91i by patching the boot.img by Magisk, placing the patched boot.img in the place of the original boot.img in the stock ROM, and flashing the entire firmware as an update via local upgrade feature in vivo? Will it work? And if it fails, how badly it can wreck my device?


问:
Restore whatsapp files from old phone
A friend of mine recently switched phones because the old one was sent to repair a broken screen.

After the switch, she noticed that some messages that were important had not been transfered. So far, I think that as she had no wifi at home, the backup was old and not updated.

Since she still has the old phone, is there a way to retrieve the old messages and add to the backup? I fear that if she just switches terminal again Whatsapp will just erase those old messages with the most recent of the backup.

Is there any way to access those messages? Ideally, adding them to the messages in the current phone, although if we just can access them it would be enough.

Title: Restore whatsapp files from old phone


问:
Google Play Store showing an app on "All apps" but not on any of the devices
It is possible to see where an app is installed on a device on the Google Play Store web. I go to Apps - My Apps, and have a drop-down menu with all the devices. However, there is one particular app which appears when "All apps" is selected, to be installed. But when choosing from the 3 devices listed in the drop-down menu, it does not appear on any of them.

Does this mean the app is installed nowhere? Why is it then shown in "All apps" when on other occasions when uninstalling an app from a device it disappears? Could it be installed on a computer and therefore shown as installed but not visible for the devices? Any way of knowing where the app is installed based on the Google user?


问:
How do I turn on app update notifications?
I've got a Moto G7 running Android 10, I've had it for 2+ years.

I used to get notifications from the Play store that App A has updated. I haven't received these notifications in at least a year, possibly longer.

All my apps seem to be updating on a regular basis, but I have odd issues where things suddenly seem to stop working for a while and I've got no idea why. I suspect that it's because I've received an update with a feature that's now broken, and a week or so later, a fix is pushed, but since I no longer receive app update notices, it's more difficult to sort these things out.

Is there a way to (re-)enable app update notifications, either in the Play store or in the phone itself?


问:
Is it possible to enjoy online app in offline mode in this problem?
This is not about changing the online app into offline by Lucky Patcher so that I don't bother with ads. No, it's not.

The app is a dictionary which requires the internet to open each entry. Actually the app offers the download button, but only for each entry which I should download all of those entries so that I can enjoy it offline if I want. But I don't think that's a clever method because there are millions of words!

Is it possible to batch download i.e. all activities are done in one action instantly by probably modifying the app? (Don't worry about the topic of hacking, it's not hacking at all since the app is totally free and there's no premium feature either).

I have searched the related problem, I don't remember where, the difference is the website I visited, discussing the possibility to download the data from wiktionary so that one can enjoy the dictionary offline. So, I'm asking this question, hoping that it's a possible thing and I can do the same thing to the app.


问:
Use my smartphone as hotspot only
I often turn on the hotspot on my phone to use the data connection on my laptop throgh wifi.

Anyway, the connection is often unstable. For example, when a Whatsapp message arrives, then the connection slows down, or it falls down.

I know that I can block the access to internet for every single application.
I was wondering if there is a easy way to block all internet activities of my phone while I use it as hotspot.

Thanks in advance!

Note that I don't have a rooted phone.

Title: Use my smartphone as hotspot only


问:
Roll back to Root on Huawei Honor View 10
I have Huawei Honor View 10 phone
I got it bootloader unlocked and rooted with magisk while bootloader unlock option was available on Huawei website.

After sometime I upgraded to Android 10 update (EMUI) from Huawei which caused me to lose root.

If I rollback to previous version...

Do I get bootloader unlocked as earlier

Will it be rooted or require me to root it again

looking to hear from someone who has been there done that.


问:
Is it possible to make Android device connect only a specific Wifi network?
i want to know if it is possible to restrict an Android device to connect wifi networks expect one specific network.

Scenario is:

An app will be installed to the Android device and then device will be given to workers. All features of the device such as bluetooth, nfc etc. will be disabled and USB port will also be disabled for security concerns. Workers should be able to connect only one specified wifi network but no other wifi networks.

Another option is to somehow lock the settings app so users (workers) won't be able to turn on or off bluetooth, and connect any wifi networks. Can it be done without using any 3rd party downloadable locker apps?

Thank you all for your answers.


问:
Data recovery from Galaxy S3 that will not turn on
I have an old Galaxy S3 which hasn't been in regular use for at least five years, but which I know has some data on it that I would like to retrieve. However, the phone will not power on, even while plugged in through USB. The battery is relatively new and has been fully charged using an external charger. The power button on the phone is still clicky. When I plug the phone into my computer by USB, a red LED on the phone turns on for about a minute, then goes off. My computer (Win 10) recognizes that a USB device as been connected (Qualcomm HS-USB QDLoader 9008), but I can't access data without powering on the phone (or in any case, I don't know how to access data without powering on the phone).

Is there a way to get the data off the internal memory without power to the phone? I have no desire to actually use this phone, I just want the data, so dismantling the thing is absolutely on the table.


问:
How to automatically delete backed up photos in Android 10?
I'm trying to figure out a way to detect when a photo has been backed up from my device so I can automatically delete it.  I was reading that there was a feature to do this already, but when I found the help page it said it is only available on Pixel devices running Android S (which appears to be version 12).   I am not able to meet these conditions, so what alternative method can I use to automate the process of detecting when a photo is uploaded?

Update:
To make it clear what I'm trying to do, suppose that I fill up my storage with images and videos.  In Settings > Storage I see an option Smart Storage which is on.  Under this it says "When storage is almost full, remove backed up photos and videos.  You can still find them in Google Photos."  But what I observe is that after the photos and videos are backed up, they remain on the device and are not removed as this text is suggested they should be.  It's important to me that this happen in an automated manner. My assumption from reading the above mentioned help page is a reason this isn't happening could be because it's not supported on my device (which is strange since it appears to offer it to me.)


问:
How To Disable htcCheckinService?
This process causes CPU spikes and sometimes incredibly slows down whole system. I need to know how to disable it. Tried with Quick System Info PRO but it won't allow me to end process or close it.

HTC Desire S

Android 2.3.5

Title: How To Disable htcCheckinService?


问:
how to root Samsung tab SM-T150
Hi i wanted to root my Samsung tablet model Galaxy Tab SM-T150 which turned out harder than i expected.

I am a android 11 user btw if it helps

I tried the one click root apps like Kingo root, king root, frama root etc but in both kingo root and king root it does not work and frama root says that my device is not  vulnerable to the exploit. Also i have tried all the other apps like towel root etc and nothing seems to work. (I do not have a pc so do not suggest abd)

Then i saw magisk and super su and i installed there zip files and tried moving them to my sd card but for some reason it is set to read only so i cant move anything to the sd card.

I removed it but it did not have any on off button and when i put it back in i cant remove it out again.

I tried to install TWRP custom recovery but that itself needs root and did not work out.

Please any suggestions will work and pls help me any thing that works  will be appreciated:)

OwnerDisplayName: Juggernaut 2.0

Title: how to root Samsung tab SM-T150


问:
How to record calls without announcing and rooting on android 10
I tried a lot of apps like the cube recorder,automatic recorder but most probably it will only record one side and the built in feature will announce before recording. How to overcome this without rooting?</p>


问:
Media not found on internal storage
I have some old conversations where I have the messages, but the media files are no longer on my phone. I found some videos and photos on google photos with the original names, like "VID_20180908_WA00005.mp4". I downloaded it, changed the timestamp so it matches the original timestamp and copied it to WhatsApp/Media/WhatsApp Video/. But the video does not play and it gives me this error. What can I do to make whatsapp accept my video file as the original one?</p>

Title: Media not found on internal storage


问:
How do I find the right software to upgrade ROM and flash for a Samsung J7 Sky Pro
I need the software to upgrade my ROM and flash for a Samsung J7 Sky Pro. I don't really know what ROM is good and not too much. I flashed the phone once with Superuser, but it says that I didn't get something right. I just used an SD card. I don't have a desktop.</p>

OwnerDisplayName: Nathan


问:
What are the risks of allowing an app the "Draw over other apps" permission?
There's an app I'd like to install on my phone (Android 12) that blocks access to distracting apps. It requires the "Draw over other apps" permission. This seems like a dangerous permission, and I'm trying to figure out how dangerous it is before I allow it.

Does this permission allow the app to see what's being displayed by all other apps? Or does it only allow it to detect touch input?

Does this permission allow it to draw over the on-screen keyboard, so that it can see what I type and potentially type for me? (This is my biggest concern)

Are there any other security risks from allowing this permission?

EDIT: This answer an this answer both say that the permission does not grant the ability to see the content of the background app, so assuming those answers are still correct (they're both 4 years old), then that's one question answered.


问:
Is it allowed for an app to ask for 5 stars with NO incentive?
I am aware of Play Store policy against reviews with an incentive. But is it OK if an app just asks the user to leave  a 5 stars review if they're enjoying the app with no incentive whatsoever? Thanks!</p>


问:
In "Account and device preferences", I tapped on and around my current profile. But why no list of other countries? Why can't I change country?
This website alleges

Then, tap on the country that you want to set your account to, the available list of countries will vary.

I tapped and pressed on the red rectangle — then the area around the red rectangle below — on my Android. But no such list ever sprang up, and I couldn't change my country! Why not?

Don't just veer me to this form that I submitted  a month ago, again 3 weeks ago, and third time 2 weeks ago. But I still got NO reply!


问:
How to load android shared libraries
How does Android load /system/lib/*.so libraries?
How does the system knows what file is for what purpose. Is there a database or list of expected.so files and their functions?</p>

Title: How to load android shared libraries


问:
How to remove apps from Samsung phone by pushing file with package names with ADB
Several years ago, a friend of mine was working on a Samsung S8 Active. He was trying to remove most of the apps on it so it was just a basic phone. He had some instructions for a Ponderosa system. He was having trouble with several things so I was helping him. We got a list of all the packages on the phone using ADB and then copied them into a text editor. We removed the name of any package that we didn't want and then saved the file and pushed it back onto the phone using ADB again. I'm not certain but there might have been an app or something on the phone that had something to do with it as well but the end result was that only the apps on the list were left on the phone. I believe that we could put a password in on the phone and the apps came back but I'm not 100% sure.

Since then I have lost the papers that had the instructions on them and the place we originally got them from no longer has them either. I have another Samsung S8 Active that needs the same system (or simular) put on it. I know how to get a list of all the app package names using ADB.

adb shell pm list packages

But does anyone know of a system that would be capable of removing apps by pushing a file to the phone? Is there an app that would work like I described? Any help would be appreciated.

Edit: I am working with a Windows 10 computer. I installed xargs but it says The '<' operator is reserved for future use. when I try to run xargs -l adb uninstall < pkgs2rm. Is there a different character to use?


问:
Completely restoring all partitions on my phone to factory after flashing custom ROMs?
I own a xiaomi phone for 2 years on which i flashed several roms and vendors via twrp. When i lately wanted to go back to stock (more accurate the stock rom the phone was released with, miui 10 pie) i had to discover that there are partitions like persistent which aren't replaced when clean flashing roms even tough i do a fastboot flash with Mi tool.

My persistnet got corrupted (sensors like gyroscope is broken) at this process and i found already a few tips how to solve it.

But my real question is, how do i completely restore my phone as i would unbox it ? With all the stuff like persistent and what ever is untouched by clean flashing roms and can get corrupted (and may you can tell me what remains untouched and it is used for/worth restoring).


问:
Formatted SD card as internal storage on Tecno Pop 3 running Android 6.0 and migrated all data to the SD card, but they're both full
Migrated all data in my Tecno Pop 3 phone, but it happened like I copied them to the SD because internal storage wasn't freed.</p>


问:
How can I erase the data on a phone with a broken display?
I have a Samsung Galaxy A40 (a405fn) with a broken display (totally dead: no touch reaction and display completely black). I want to sell the phone for parts, but I need to erase the memory.

When I connect the phone to a PC, it's connected but the folder is empty since I can't unlock the phone. It doesn't have a password to unlock, only to slide to back to unlock. The phone reacts to the buttons' presses. I can turn it on and feel vibrations but I don't hear sound.

How can I erase the data on a phone with a broken display?


问:
Android Phone is deleting the .MOV files form SD card when inserted via USB OTG
I bought a mini camera for use when on travel and when I remove the micro SD card from the camera and insert it into the OTG USB-C adapter attached to my Note 20 Ultra, the entire contents of the VIDEO folder is deleted. I have tested it multiple times and every time it deletes all .MOV files.

The SD card is formatted for exFAT and can be read on a PC.


问:
My tablet won't let me type my password please help
I try to put my password but it's stuck there the keyboard doesn't show up so I can't put the password and I know it</p>


问:
How to enable lock screen password in BlueStacks 5 on Android 7.0 Nougat?
I installed Bluestacks 5 recently. It is also rooted. I want to install a CA certificate on the device which is Android 7.0. To install the certificate, I have to set the screen lock first. But when I check the Settings, I can't find any lock screen password.

I did manage to access the password setting somehow but it automatically set to None. So I am not able to set any password in it.

Please help me to set a password.


问:
Audio Ducking Permanently Reversed on Android 11
One time, I was using the app WhatsApp while listening to music using Samsung Music app. Whenever I sent an outgoing message, it would play a short sound, which briefly reduced the media volume for the music, then it would return back to normal.

However, something weird happened, and the media volume was reduced by default. Whenever I sent an outgoing message, it would briefly increase before reducing it again to the default low. This now means the maximum volume is reduced.

The current behavior is such that when I'm listening to music, the maximum volume is low but when I receive a notification, the volume goes up briefly while the notification tone plays, then gets reduced when the notification tone is over.

The phone is Samsung A10s, running on Android 11.

I have tried restarting the phone, clearing data for the settings app and also the option to "Reset all settings." None have worked. How can I correct this issue without performing a factory reset?

OwnerDisplayName: Supreme Dolphin


问:
Is it possible using Yubikey as a login authenticator on lock screen?
This question was already well asked and answered in the negative back in 2017 (see at bottom). However, as I'm about to purchase an Android phone, I'm hoping things have changed. I'm a newbie to Android but the clearest I can be is: How do I setup my Yubikey for use as a first or second authentication factor when logging into my Android device.

For example, before or after I enter my password, I would plug in my Yubico key to finish the login process. To be clear, I'm not referring to account 2fa once inside my phone, but as an authenticator for entering my phone in the first place i.e. as an alternative to fingerprint or swipe patterns. I understand Windows 10 offers this (see link below).

Please let me know which if this is possible at all with an Android device. So far I can't find any even though Yubikey says their product "works with Android". I researched under "Smart Lock" and didn't see anything except Bluetooth, but YubiKey isn't Bluetooth (though they use NFC)

https://www.zdnet.com/article/yubico-security-keys-can-now-be-used-to-log-into-windows-computers/.

Previously asked: How to login to Android with Security Key?

I would like to login to my android by my security key. The phone has
NFC support which is the easiest way to authenticate the login if
supported. I am thinking how to accomplish the task by 3rd party app.
The login is well maintained by the OS so not sure if possible at all
to change the login way.


问:
Any way to control the volume/mute for Caller ID announcement?
I really like the "Caller ID announcement" feature, where it announces the number calling you.  However, I've noticed it announces it regardless of my volume or mute settings.  I do not want my phone making any noise if it's set to "Silent", or the ringer volume is all the way down.  Any way to do that?

I'm using Android 11 on a OnePlus 9 Pro running Oxygen OS 11.2.10.10.LE15AA.  Thanks!


问:
How to access Android phone's internal memory with broken screen?
I have a Xiaomi Mi Android phone. My screen is completely broken but there are some important data available in the internal memory of the phone.

Is there any way by which I can access and copy data from internal memory to my computer?

OwnerDisplayName: Puneet Dixit


问:
how to convert Samsung sm-g531f firmware file to bootable image?
Recently I got deleted my OS in my SM-G531F. I found the rooted firmware online and I am trying to make a bootable image using the downloaded firmware. In my phone the the volume up key is not working, downloading and installing using the Odin tool is not an option. Can anyone guide me how to create a bootable USB so I can mount using an OTG and install the OS. I am using Windows OS in my desktop.</p>


问:
What is the easiest way to mass-transfer (via USB-C) hundreds of files (like my DCIM folder) from one smartphone to another smartphone or external HD?
A lot of the standard Android file transfer apps only allow manual selection - aka they don't easily allow me to do "select all" of hundreds of files.

Interested in both transferring to a 1TB SSD hard drive or to another smartphone.

Prefer to not go through a PC because of friction/lag/sudden disconnects.

Also how can I even view files from one phone onto the other phone?


问:
I have a Samsung A51 android smartphone, how can I adopt my SD card as internal storage
On my A51 android smartphone how can I adopt my SD card to internal storage.</p>


问:
Why can't I flash nethunter.zip and why can't I install an apk file on nexus 5 marshmallow that is transfered from PC?
I spent like 30 hours to try to install nethunter on nexus 5 but always failed. I tried to root with magisk all procedures following official instructions and succeeded, I also tried to root by flashing SuperSU-v2.82.zip, also succeeded, I also tried to use 'nexus root toolkit' to root and succeeded too. But no matter how many times I root and whatever method I try, whenever it's successfully rooted and SuperSU and BusyBox are granted and installed, I tried to flash the current offial zip file of kali nethunter (of size about 3G), it fails and then I reset to factory img. Whichever version of TWRP I try (3.6.0.9/3.2.3.1/3.0.2.0/2.8.7.2), it just keep reporting the same error msg: "failed to map file 'nethunter....img' ". I have checked SHA256 but the file is intact. And I could flash other zip files like SuperSU.zip.

What's even more annoying is that first I can't download APPs from google play store(sth wrong with the network), second I can't install a single one apk file which I transfer from PC to nexus 5 by USB cable (it constantly reports "can't open file" while any apk I download from a phone browser is installable), or even open a zip file, like there's an invisible barrier around each file that is transfered from PC. Except for the 'nexus root toolkit' method by which I don't have to install APPs, any time I have to install an APP like SuperSU, Magisk, BusyBox or TWRP Manager, I will have to search it in the browser and download the apk to install it, which is very time consuming.

I would be very much obliged if anyone can help solve a problem I met.

All the tutorials I have followed:

Official document: https://www.kali.org/docs/nethunter/

Officially recommended guide: https://forum.xda-developers.com/t/guide-unlock-root-flash-for-nexus-5x.3206930/

Installation with nexus root toolkit video: https://www.youtube.com/watch?v=L9QVULNLkug

Installation of Magisk: https://topjohnwu.github.io/Magisk/install.html


问:
backup used on device
Is there a way to tell if a backup file .ab has been used on a android device? Like a log that shows the a back up was used on the device?

I apologize as I am a novice with Androids and ADB, I am trying to find out this answer for work.

Title: backup used on device


问:
semi-frequent reboots on Galaxy tab; ways to troubleshoot?
I have a Galaxy Tab S6 Lite, Android 11, which I generally love. I have a SD card connected to it. It's 2 years old. Storage-wise, I have tons of space, especially on the SD card.

I an experiencing semi-frequent reboots. Today, in fact, it rebooted on 3 separate occasions -- a little unusual for me.

I'm good at troubleshooting desktop apps, but not so much with android stuff. Is there a process to follow? Where to go to get good info? Are there any utilities to use to help troubleshoot? I haven't found much useful information under Settings.

Today I was using the Twitter app before all 3 reboots, and for the third reboot, the only app I was running was Twitter, which seems like a dead giveaway. But how can I confirm this?  I'm not convinced that Twitter is the only cause, but have no idea how to check.

It wouldn't surprise me if the Twitter app was causing problems. It connects to and launches other apps within it (news app, etc). And there are some complaints at the Google Play store. But I really feel I don't understand how to track and resolve problems like this. Any help is appreciated.

Under the Settings --> Apps --> Twitter, I see that average memory usage is 4.2 MB, and that maximum memory usage is 268MB which does not seem excessive to me.

Final question. If one app is causing reboots, is deleting and installing fresh likely to help?


问:
Is it safe to delete a .bin file on an Android 11 phone?
I keep getting .bin files that show zero data in them and others that pop up regularly. Is it safe to delete them? Do they contain any vital information. Are they remnants of sites I've visited using my Android 11 phone? Can I do without them or am I causing some harm in deleting them? Some show up on engine log. What are they?</p>


问:
Re-enable Setting app that has been disabled
I mistakenly disabled my phone's Settings app after Play Store marked it as harmful. I can no longer change my setting or get into the phone setting again.

What do I do?


问:
I need more frequent updates of my Facebook calender on my phone than Google Calender offers
There seems to be a limit to how often Google Calender updates subscribed calenders, something like once per day. I need a more frequent update than that, once an hour or so, because my Facebook calender, which I subscribe to in Google calender and from there sync to my Android phone, often changes several times a day.

On my Mac, this is not an issue because I can set the calender to update every 15 minutes.

How can I achieve more frequent updates of a subscribed calender on an Android phone while I also display my other calenders in the same view? (That is, if the solution is some other calender service, app or whatever, it has to be able to display my other calenders similar to how it works in the stock calender app)


问:
How to allow auto fill of credentials in WebView App
We have a web application and want to provide an app for it. We use a simple WebViewClient application which opens our web application. This works good.

For authentication the web application doesn't use our own site, but an external ID provider, which redirects back to our website after authentication.

The session timeout is pretty short due to reglatory reasons, so the user cannot stay logged in for a longer period of time. So we want the user to at least be able to autofill the user/password fields with credentials that are stored on the phone.

It seems like I get different behaviours on different devices. For example I have an Android 9 device and there seems to be no possibility to use stored credentials on the login form. A friend has an Android 12 and for him when he enters the password field he has this little key symbol to use stored credentials to autofill the fields by then selecting one of the stored user/password combinations.

Also in Android Studio in an emulator I don't get this option in my keyboard to use stored credentials.

So my question is. What are the requirements that this is shown on your phone? Is there a way we can set up the app to always allow the possibility to use stored credentials?

Please keep in mind that we don't have control over the login page itself, as it is hosted by the Identity provider. So we would need a solution based only in the app itself.


问:
Question about FDE without secure start up and factory reset
So I read that on device launching with 7.0 , it has FDE by default and a 256 bit primary key is randomly generated at first booting the device (say after a factory reset).

My question is, if no secure start up was set up and the primary key is encrypted by "default password" only, is the primary key still "lost" after a subsequent factory reset?

If so,

Will default fde without secure start up still prevent the device data from being accessed after a second factory reset that loses the first primary key?


问:
Force network operator
I'm getting my phone service through a medium sized company in my country, which means they have their own LTE network (called ice+). With my current plan I have practically free use of this network, but in the cases I can't find that network, my phone will automatically connect to their backup one (called ice, which I believe they access through a cooperation with a larger company), of which I have a small limit on data usage. This has been working out great for the past half year, but recently my phone has started changing the network operator from ice+ to ice randomly, even though I know it has access to ice+ (it will change to and stay on ice when I'm at home, even though the phone has been lying in the same place the whole time). Even if I manually select ice+ (which takes a few minutes to find because of searching), the phone will automatically change back to ice without me touching it at all.

Because of this I need a way to lock my phone to ice+, so I won't have to deal with restricted access and high bills, which should be completely unnecessary. Does someone know how I could do that, if there's something I can change in the APN settings, or maybe some app I can download that will do it for me? Even something that will check the network and automatically change back to ice+ would be okay, if not as convenient.

For reference I use an LG G6.

Title: Force network operator


问:
Where are Samsung's "Gallery" app's automatic "tags" stored and how can they be used downstream (i.e. in non-Android photo mgmt / dam software)?
Samsung's "Gallery" does a fantastic job at automatically / on its own assigning "tags" to photos, making it easy to find photos with certain keywords (e.g. "sunset" or "furniture" or what not). Where exactly are these tags stored and will they be preserved / usable downstream, i.e. in non-Android photo management / digital asset management software?

Related links:

https://www.howtogeek.com/302672/how-to-view-and-edit-photo-exif-data-on-android/

https://forum.xda-developers.com/t/samsung-photo-gallery-exif-tags-keywords-on-images.3991507/

https://exiftool.org/forum/index.php?topic=11951.0

Where are extra keyword tags for photos stored?


问:
I can't join my class group chat because of iPad users who require iMessage
I'm trying to join my class's group chat, but the owner of the chat (on iOS) can't add me. This is because I'm the only person on Android in the group. Normally I would be able to join (via SMS/MMS) but because many of my classmates are on iPads which only support iMessage it won't let him add me. Is there a way that I can be added to the group chat that preferably doesn't require any of the members (besides the owner) to change or do anything? BTW I don't own any Apple devices or have an Apple account/ID.</p>


问:
Please help to fix and back up Android 12
My Pixel 4 with android 12 is experiencing an infinite rebooting problem for unknown reasons. I suspect something is wrong with the google app, which is not able to be updated without errors. I tried to uninstall some apps to create space to update all the apps but the phone is forced to be rebooted every few minutes after I unlock the screen. And empty space got mysteriously used up after every reboot.

I can't find a working solution and I am now trying to back up everything on the phone, except I don't know how to. Pixel 4 was previously rooted but it is not rooted after updating to Android 12. The bootloader is remained unlocked.

I found some answers but they are dated and I am not sure if they still work. I need solutions to back up all apps with data. For example, Messages, WhatsApp, WeChat, Game data.

Ideally, I need ways to back up data in recovery mode because the phone will reboot every few minutes after the screen is unlocked. Please give me exact instructions on how to perform the adb instructions. I have not performed these instructions for a very long time and I forgot everything.

It is very frustrating to find out that the official google backup solution is to use google one as the backup solution. I highly doubt if it actually backs up everything including game data and app data. And it seems like it is useless in this case because the backup occurs after unlocking the screen, and not at the recovery mode level.

Thank you very much for your help.


问:
IFTTT multiple notification triggers not working
I'm trying to trigger an IFTTT action (turning heating on/off) when I arm or disarm my alarm system. The alarm system does not offer integration with IFTTT but, since arming/disarming the system gives a notification on my phone, I decided to use the android service with the "notification from a specific app" trigger.

I can create a working trigger for when I disarm the alarm, as well as for when I arm the alarm by specifying a notification keyword, next to the app name. However, the moment I try to enable both of these at the same time, I find that only one of the two works.
Is there a limitation where you can have only one trigger checking notifications (from a specific app)? If so, are there ways around it?

I also tried location based triggers, but never got them to work (tried everything from disabling battery optimization, checking location service settings on my phone, enabling wifi/bluetooth for better accuracy and changing IFTTT apps settings).

I'm using Android 10 with the IFTTT app installed and running in the background.
I am currently unable to upgrade my android version as apparently nowadays phone companies think it is normal to stop all updates after 2-3 years, forcing you to replace perfectly good phones, which I'm not willing to do.


问:
What application is responsible for reporting seen SmartTags to Samsung?
There must be some kind of technology on Samsung Galaxy phones that report SmartTags seen t Samsung. Is that technology in,

The Samsung Android distribution

The SmartThings application

Something else.

What actually is responsible for seeing and reporting these devices?


问:
Delete Android app installation history
I last used Android about 7 years ago, yet Google is still storing a list of “installed” apps. How do I delete this?

I can browse it at https://play.google.com/apps.

Things I’ve tried that didn’t work:

Ensuring Google doesn’t still think I have an Android device - they don’t

Clicking on the app then clicking the “Installed” button - “no device” error

Going to “Delete a Google service” - not listed

Going to “Apps and services” - listed, but no option to delete

Browsing Google Play settings - no option to delete data

I’m hoping for a solution better than deleting my entire Google account.

Title: Delete Android app installation history


问:
Temporary root shell on unlocked bootloader?
My Pixel 2 "walleye" is already bootloader unlocked. I am wondering whether it's possible to get a root shell without first rooting the phone. Maybe via fastboot?</p>


问:
LG Stylus 2 k520DY not going to bootloader and fastboot

I have a LG Stylus 2 k520DY and I want to root it. the problem here is that I can't reboot it to bootloader and fastboot. the adb commands: `adb reboot bootloader` and `adb reboot fastboot` do not work. when I perform these commands, my phone just normally restarts.

Do you have any idea how I can fix this?

Is it even possible to get this phone to bootloader?


问:
Cannot boot into UPLOAD MODE on SM-T110, kernel panic does not work
I'm trying to boot into UPLOAD MODE on my Samsung Galaxy Tab 3 Lite 7.0, but I can't seem to find a way to do it.

I was able to dump this image from the PARAM partition:

But the tablet just reboots upon a kernel panic. Does anyone know a way to manually trigger this mode? Thanks!


问:
Is it possible to build a linux kernel/stripped down android version for Samsung Galaxy A5 and Tab 4?
I have been doing a lot of hobbyist electronics recently and was wondering if I can use my old Samsung Galaxy A5 duos phone, samsung galaxy core duos gt-i8262 and/or Samsung Galaxy Tab 4 7.0 3G in some of my projects. I don't have a lot of knowledge on android and was hoping I could skip having to learn android development, I was wondering if I can install a linux distro (like ubuntu touch) on these devices to simplify things, but my research so far heavily implies that's a no.

What I basically want to achieve is as follows:

Use aforementioned devices (and their peripherals like camera, accelorometer etc) in my projects, running programs in a familiar language (like c/c++ or python), in a close-to-linux environment

If i can't use the peripherals, at the very least, I want to use the CPUs on these devices to execute a program

Preferrably, not use android or at least not a heavy OS to dedicate as much CPU and RAM to my programs as possible

These devices would be controlling other electronics of the project using a microcontroller such as arduino

To summarise, I want to get these devices to work as much like a raspberry pi board as possible (excluding the GPIO pins part)

What I think are my options:

Building a linux kernel for these devices

Building a custom version of android for these devices

Just using the version of android these already have on them and somehow working on that

To top it off, the catch with the Tab device is that it won't boot beyond the samsung logo screen, so I'm not sure if I can get around having to install some new OS onto it anyway.

I know that phone manufacturers make it a lot harder for tinkering with the innards of their devices, so is it possible to have these functionalities on these devices? And are these the only options or is there a better way to go about doing this? Any help would be great. Thanks.


问:
Android 10: How can I switch to external loudspeakers during a call (the screen is black and locked and nothing happens if I plug the loudspeakers)?
I have a Motorola "moto e" phone running Android 10.

Unlike in the case of my old Windows Phone when, during a call, it was enough to plug the 3.5 mm jack with 3 contacts of my external loudspeakers into that phone and the sound switched immediately to the loudspeakers, in the situation of this "moto e" the loudspeakers receive no sound if their jack is plugged during a call.

I guess that, while talking with somebody, when the screen is black and locked, I can activate somehow the screen of the "moto e" and, by setting something, direct the sound to the external wired loudspeakers or to a Bluetooth wireless speaker. How can I reactivate the screen and do the above mentioned settings?

(In most cases, the screen of the phone has to go black and be disabled by the proximity sensors because in 80% of the time I use the phone with its internal speaker.)

Incoming call screens.