问:
Repeat music in Chromecast
Found this song and want to play it in a loop through the TV when using Chromecast.

When I'm using YouTube Music before Chromecast, then I'm able to repeat it. Thing is, once I start to Chromecast it, then the button to repeat gets faded

This is a problem because the sound is not as powerful as when on the TV.

Title: Repeat music in Chromecast


问:
Restoring adopted storage key which was forgotten
is it possible to restore adopted storage key which was forgotten? I have rooted android phone, I tried to navigate to /data/misc/vold/ folder with TWRP, but it seems that the key is lost forever?

Thanks

ContentLicense: CC BY-SA 4.0


问:
Background Control in developer options of android 11

There is a background control option in developer options of android 11. I added an secreen shot. Do options must be enabled or disabled for blocking an app. I did not understand. AASAservice is allowed for background now?    Arka Plan Controlü = Background Control


问:
Built-in Trojan?
So I bought this tablet from a little-known company called iGet. The tablet was brand new and all the apps you see on the following screen came with the tablet or were installed from the Play store (Camera, Clock, FM Radio, and Sound Recorder are built-in).

The model of the tablet is Smart W103. It runs Android 9 Pie.

The problem is that ESET finds a trojan as part of the OS. Or could it be a false positive? AVG was not able to detect it.

TrojanDropper.Agent.DHC is the culprit in question. It's in MtkSettings.apk as part of settings.

Some other info:
When you press Build number in settings several times, you get developer as usual. However, pressing Custom build version several times reveals the Device info option.

There it's possible to get to several advanced features:

pressing ProductName info several times opens MTKLogger

pressing LCM info several times opens EngineerMode

pressing TP driver opens Hardware Check

Also "spam" links open in Chrome randomly on their own from time to time. What's up with that? See attached screenshot for reference.

Title: Built-in Trojan?


问:
After I installed an app, the phone now scans NFC every time I unlock the screen (Android 12)
I did not know that an App can modify system behavior like this.

I have phone always on silent. I installed "Xiaomi Wear". During installation in Play Store, the phone made a short vibration. I thought that was weird, since the phone is on silent, and it never vibrates.

Anyway, after installation, the phone is now changed to vibrate every time I unlock it. A short vibration, but with full force (unlike when unlock with fingerprint).

Apparently, the phone scans NFC every time I unlock it - and since I have a bank card on the back, I guess it vibrates to signify it found something.

But I don't understand why an app can cause something like this, and how I can prevent it?


问:
Cannot backup Andrioid Chrome data with adb
I've connected my Samsung Galaxy S2 to my computer via USB debugging and run:

adb backup -noapk com.android.chrome

The result file backup.ab has only 41 bytes.

What's wrong?


问:
ADB not connecting after rooting with Magisk
I rooted my Coolpad Modena 2 (E502) using Magisk. After I rebooted it, ADB stopped connecting.

Things I've tried:

Wiping the phone and rooting it again

Using different USBs

adb devices just shows "List of devices attached" and nothing else. USB debugging was turned on and I can connect fastboot but not adb. Also when selecting an option from the notification "Connected only for charging", it doesn't save the option, leaving it at the default Charging option.

EDIT: i managed to fix it by disabling factory mode.


问:
Does "allow background data usage" only apply for mobile data?
I have the samsung a32 5g.

Will an app still use wifi in the background if this is turned off?


问:
Galaxy Z Flip - show screen automatically when flipped open
Samsung says that the lock screen can be turned off with:

Go to Settings > Lock screen > Screen lock type > enter your passcode > None > Remove data.

I don't have the 'None' option though, please see:

So currently I need to press the button to show the lock screen, and then swipe it up to access the phone.. it's annoying. How do you make the lock screen go away completely?


问:
Delete files downloaded from Telegram
As a follow up to this question, consider a phone with Android 11 and telegram installed on it.

Consider that the user joins many groups, download some files from them and leaves some group, loosing track which groups he first joint and then left.

So now he has many useless files that he wants to delete to free some space. In old Android version, one could access the Telegram folder and check which files were in and eventually delete it. In android 11, from the answer to the question I've linked, this is not possible directly (or at least no as easily as before): how can one check which files are present on their Telegram folder/in his phone and eventually delete them?

Title: Delete files downloaded from Telegram


问:
"Do not Disturb" doesn't block anything
I have a Samsung Galaxy A71 5G. When I got the phone I setup the "Do not Disturb" on a schedule. It worked fine.

At some point I let the phone install updates. Ever since then, as far as I can tell "Do not Disturb" does not block anything. It automatically comes on on the same schedule. But nothing is blocked. Every single app, phone call, & text message still comes through. I do not have any exceptions in my "Do not Disturb" configuration screen.

What do I need to do in order to get "Do not Disturb" working again?

Title: "Do not Disturb" doesn't block anything


问:
Do turning on encryption and factory reset ensure that deleted images before that reset is also unrecoverable?
I have factory reset my device once. If I turn on encryption now and again factory reset, is it possible to recover photos deleted before the 1st reset? I want to sell my device and don't want others to recover any of my photos.</p>


问:
Why do I get the error "Preflash Validation Failed" when trying to install a ROM on my Moto G8 Power?
I was trying to install an Android 12 GSI with Fastboot, but whenever I try to install the system.img, it always fails with the error:

(bootloader) Preflash validation failed
FAILED (remote failure)

I have seen that this error is common if you have the bootloader locked, but mine is unlocked.

Here's the full list of commands I used:

```<code>F:\Programs\Minimal ADB and Fastboot>fastboot flash boot boot.img
target reported max download size of 805261312 bytes
sending 'boot_b' (52224 KB)...
OKAY [  1.276s]
writing 'boot_b'...
OKAY [  0.779s]
finished. total time: 2.056s

F:\Programs\Minimal ADB and Fastboot>fastboot flash vbmeta vbmeta.img
target reported max download size of 805261312 bytes
sending 'vbmeta_b' (4 KB)...
OKAY [  0.005s]
writing 'vbmeta_b'...
(bootloader) WARNING: vbmeta_b anti rollback downgrade, 0 vs 16
OKAY [  0.036s]
finished. total time: 0.041s

F:\Programs\Minimal ADB and Fastboot>fastboot flash system system.img
target reported max download size of 805261312 bytes
Invalid sparse file format at header magic
sending sparse 'system_b' 1/3 (786340 KB)...
OKAY [ 19.870s]
writing 'system_b' 1/3...
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 19.962s
</code>```

Why do I get this error, and is there any way to solve it?


问:
Do the recent apps screenshots/snapshot thumbnails in data/system/recent_images get deleted when the app is closed or overwritten?
I recently discovered how the recent app switching works, and I saw this thread:

XDA thread here (and there were a few other questions on here on the same topic, but were different questions)

and have the following questions for Android 10 and 11:

Do recent background app snapshots (overview) in data/system/recent_images ever get deleted? Since the data/system folder holds sensitive information, and specifically the task overview snapshots that Android takes for the recent app that are saved in data/system/recent_images or data/system/snapshots that are also called the overview or task list I believe, is there a mechanism that deletes these snapshots or overwrites them when an app is closed?

Do different launchers affect the snapshots or access them in any way?

Thank you!

Edited for clarity of main questions.


问:
FORTIFY: pthread_mutex_destroy called on a destroyed mutex
I own the LG G4 (Snapdragon 808 based device).

All files reference in my post are shared here.

I'm trying to get the camera working in Q, however, I get major issues with the camera daemon crashing.
We get errors like: FORTIFY: pthread_mutex_destroy called on a destroyed mutex
See the log file labelled "fortify - boot_lc_crash.txt" in the shared folder.

The lib at fault is : libmmcamera2_isp_modules.so

The issue is that the pthread_mutex_destroy is called within a loop. See the image labelled "mutex destroyed in loop.jpg" in the shared folder.
You can see the loop in lines 88-97.

We initially imported the same lib from another device with a similar chipset (oneplus2 - Snapdragon 808, just like the LG G4)
https://github.com/aoleary/vendor_lge/commit/72e3cb5fedd04e9daa99541d298037d81754daf0
But we had issues still after that.

So, instead, we tried modifying our own lib directly, to see if the outcome would be different.

We tried to reverse engineer the libmmcamera2_isp_modules binary. We tried fixing it by hexediting the binary so the loop only executes once.

But then we have these pthread join errors : invalid pthread_t 0xea776230 passed to pthread_join
See the log file labelled "pthread - boot_lc_crash.txt" in the shared folder.

We tried to edit the beq, the b and making param = 1 initially, but that didnt work out.
See the image labelled "modify pthread.jpg" in the shared folder.

Any ideas ?

ROM = https://github.com/AOSIP (ten branch)

https://github.com/aoleary/device_lge_h815/tree/aosip_Q
https://github.com/aoleary/device_lge_g4-common/commits/q_aol3
https://github.com/aoleary/G4-Titan-Kernel/tree/pie_mergeQ
https://github.com/aoleary/vendor_lge/tree/q_aol2


问:
Use the phone stylus/digitizer as a PC input method
I would like to use my Samsung Note; taking advantage of its digitizer; as a input device of the desktop pc.

I suppose the question/answer can also apply to other brands and the touch screen.

Is it possible?

is there any driver/app necessary?

is it not possible due any Android OS restriction?


问:
Speed up network selection
I am living on the border between two countries and consequently I often have to manually select a network, either from one country or from the other country. My issue is that searching for the network is an extremely slow process, that can take up to ten minutes.

Why is this such a slow process?

Are there any ways of speeding it up?

Why do I need to wait for the search to finish completely before I am allowed to choose a network? I would imagine that the phone finds most networks quickly, but then perhaps struggles on a few where the reception is bad, which then increases the time. However, I do not care about finding all the possible networks, just the two main ones that are the ones that I frequently use.

Could I perhaps manually set a timeout for the search of, say, 30 seconds?

I am using a Motorola G7 power with Android 10, but this issue has been with me for several different phones and android versions.

Title: Speed up network selection


问:
Switch password by day on Android?
I like to put overly complicated passwords on my phone (currently it has 16 numbers). Is there a way to make the password switch by day? Like every Monday it would be "1234" and Tuesday "4321". I have heard of a system like that, but it might not be a real thing, at least not on phone. I'm using a Samsung Galaxy A51.</p>

OwnerDisplayName: Aapo Pesonen

Title: Switch password by day on Android?


问:
Connecting external wifi adapter to android 6
This question may be asked before but I couldn't find a working answer so I will ask again.
I got a Android 6 device which has root permissions. But its kernel is the stock one. I want to connect a cheap wifi adapter that doesn't support monitor mode (now don't write that I use it for cracking/hacking and etc.) to my phone. I also have chroot environment in case of compiling driver. How can I use that usb adapter to share my connection at least from chroot???

Now about why I use it: The router in class that is next to us has very short wifi range and it almost doesn't come until our class(Don't worry,we got their permissions) so,I want to use my phone to extend the range and be able to use that network in my class.(From other devices)

What I tried until now:

Sharing WiFi on same interface using Create_AP.
Result: It created a AP but clients couldn't get connection even though I could. And WiFi interface kinda hard blocked and didn't work until I rebooted phone.

WiFi tethers for Android
Result: They didn't work as well.

EDIT 1: I guess I got some progress. Check out https://pastebin.com/jQqHX5Ms


问:
No sound through hearing aids when having a video call on android
I have ReSound hearing aids, tried them with different android devices, the latest is S21 ultra which has (Direct Android Streaming, a hearing aids bluetooth Functionality), which should be compatible with the hearing aids.

When having an ordinary call, or streaming media, the sound comes from the hearing aid,
(but not when having a video call in any app, that the sound in this case comes from the phone).
May I ask if there is a solution for this problem?

My best regards and thanks in advance.


问:
Apps work with mobile data, but not WiFi?
I have an android phone, where spotify and instagram refuse to work, and behaves as if there is no internet connection when the phone is connected to my home WiFi.

If I switch to mobile data, these apps work perfectly. I don't know what's causing the issue since my WiFi connection on the phone works fine otherwise.

After a factory reset to the phone, I get the same results.

I can't afford to use mobile data all the time, anything I could do to disguise my WiFi? As I assume this is a trust issue of some sort...

This only happens on this one phone, on my other devices I have no problems with my WiFi connection and these apps.


问:
Android 11 - If you turn off your screen with an app open that uses data, will any data/battery used be considered background?
Let's say I open Pokemon go and was using mobile data to play it and kept the app open but turned off my screen.

For the next few hours, I know battery and data usage will be significantly reduced, but during this time will any battery and data used be only considered "background usage?"

It's impossible for an app to use "foreground data and battery" if the screen is turned off?


问:
Does clearing RAM actually help in performance before opening a game?
I have the samsung a32 5g.

Is it a good idea to clear RAM often on your phone? I have 4GB total and notice it is always usually using 2GB, and 3GB when I have opened apps recently. To prevent app game crashes and increase performance, does cleaning RAM actually help? Should you turn off auto-clean since it might close apps you wanted open and would be more inconvenient than helpful?

Does cleaning RAM manually work the same way a phone restarts and "cleans" RAM or is it different?


问:
Get full list of secret codes in android
I was able to run some of settings hidden apps via adb with

```<code>adb shell am start -a android.intent.action.MAIN "com.android.settings"
</code>```

These hidden apps are actually some of the activities runnable via "secret codes". Since secret codes are various and some of them are also vendor/device defined, is there a way to retrieve list of every secret code available on a particular device? Maybe from a manifest, by identifying the receivers, via some adb commands etc.

Thank you in advance!


问:
Encrypt SD Card
I am new to Android because I was an iOS user before and the first thing I came across on the way is that with Android it is possible to expand the memory via an SD card.

The disadvantage, however, is that the merged memory encrypts the data, but the data is unusable if it is defective.  The other method is not to use the SD card as a shared volume but as a separate data carrier.  The problem, however, is that in the event of theft, data such as application documents etc. is read in.

Is it possible in any way to encrypt the data on the external SD card so that the data can still be read by entering the password and on multiple devices.

You couldn't encrypt the SD card on a computer and activate it on the Android device with a password.  Or the Android device itself can offer encryption options.  For example, there is a virtual volume like macOS introduced with hdiutil to create UDIFs so that the disk image could be read when the password was entered and it worked like a real virtual encrypted disk.

I hope you can roughly understand what I'm getting at, ihow to encrypt the data and to be able to access everyone again when the password is entered, on all devices.

What next?

Warm greetings

Title: Encrypt SD Card


问:
Can you clean your Samsung a32 5g front and back camera lens with 70% isopropyl alcohol and a microfiber cloth?
I have the samsung a32 5g.

Will doing so cause any strappings of coatings/damage of any kind, and what are those coatings supposed to do? Are the camera lens made of plastic or glass?


问:
Force check for notifications without checking phone
When i haven't checked my phone (One Plus 6. Running OxygenOS 10.3.12) for a few hours, when i finally check it it lags like there is no tomorrow.

My guess is that it requests and then receives a crapton of notifications, which causes the lag.

I can take that guess because when i check my phone, nothing is new but after 10-15 seconds it seems to open the floodgates and i receive 20-30 notifications all at once.

Is there a way to tell android to do a check for new notifications every x minutes, even if the phone is left undisturbed?


问:
Safe to delete files in /storage/emulated/media/logs?
My phone is running out of free space. When Settings > Storage displayedmore than 30GB used by "System", I looked into it further using the DiskUsage Android app.

It told me that  /storage/emulated/media/logs was more than 8GB:

In this folder were many 256MB log files.

But when I try to view more information about these files in a browser app, no files are displayed. I assume they are protected in some way. I'm not rooted, so maybe they're unavailable for that reason.

Are these files safe to delete, and if yes, can I delete them without rooting?


问:
Multiple account for contacts Sync in Whatsapp
I have multiple accounts in contacts Gmail, Phone, Samsung account.
Which account will it take to sync with Whatsapp ?
What is the limit of contacts ?
As per my work i have total 50k plus contacts in my phone in various accounts, will it sync in whatsapp ?
I have tried all possible ways to sync account deletion, reset of my phone, restarting phones.
I can see few contact names in whatsapp but in my contacts when i open the app of contacts there is no link to whatsapp in none of the names.</p>


问:
Gboard keyboard suggest second language even though I added only one language
I use GBoard and have set English as my only language. But it shows auto-completion suggestions in both Hindi (transliteration) and English to me. I don't type in Hindi so I find it really annoying and want to disable transliteration of Hindi words in Gboard Keyboard.

Here is what I did:

Go to Gboard -> Settings -> Languages. I only see English (US) there.

Go to Gboard -> Settings -> Dictionary. I only see English (US) there too.

But still, when I type "bah" for example, I see suggestions for "bahut" and other Hindi words.

How do I get rid of them?


问:
Unable to login into spotify from Samsung Galaxy Note S20 Ultra
I have recently purchased the Samsung Galaxy Note S20 Ultra.

When I'm trying to login into spotify, then it is giving a message - Something went wrong, please try again. I also checked from my other device, i.e, iPhone. I'm able to login from that device.

I tried all the methods like clearing cache, re-installating the app and so on. But the issue still persists.

What is the actual issue ? Is this issue caused due to One UI ? Please help.


问:
Onedrive & Googledrive automatic syncing - How often does syncing happen?
I have the samsung a32 5g.

Does just logging into onedrive/google drive reduce performance/battery life in any way?

How often does onedrive and Googledrive sync to your phone automatically if logged in, does it affect performance/cause slowdowns constantly?


问:
How can I backup and/or restore MMS messages on another phone?
Context

I recently got a new Android phone. (OnePlus Nord N200 5G for reference.) On my old phone (LG V30+) I utilized the "Backup" in the Settings. On my new phone, I was asked if I wanted to restore from a backup, so I did. Everything seemed fine.

Later, I realized that MMS messages did not back up. It's as if they were never sent, and old Text conversations don't make sense with those pieces missing.

Goal

My ideal situation is: I can restore those messages and they will slot right into where they belong in conversation order. I would also accept just being able to easily save all MMS messages across all contacts somewhere, if my real goal is not possible.

What I've tried

It seems to be the case that the old "backup" stuff in the settings has been replaced by Google One. Indeed, in Google One, there is a checkbox for "backup MMS messages" that is separate from "backup SMS messages." However, it doesn't seem to be possible to restore those backed up MMS messages without resetting the new phone back to factory settings. But I have a month of new conversations that I don't want to delete, either! So I don't think there's a way with that app.

I have seen dozens of sketchy looking apps promising to be able to do something with my MMS messages. However, I don't trust any of them, and through searching haven't been able to find anything that I feel confidently says it can do what I want.

I'm vaguely aware that these messages are stored in a SQLite database on the phone. I have not attempted to copy this database or otherwise merge the data in them, though am willing to give it a shot if this is necessary. I know my way around databases, but have low confidence the simple solutions will work here. (Expecting security things, or checksums, or anything.)

Neither of my phones are rooted, and I would personally like to keep it that way, but if necessary I'm willing to go through those steps. But even with that, I haven't seen anything that suggests that creates an easily solution either.

What can I do?


问:
How to add special permission to application?
I removed too much system apps last time and I reinstalled Google Play Services (GmsService) from .apk file from backup.

However, its component com.google.android.gms.persistent needs permission OBSERVE_GRANT_REVOKE_PERMISSIONS and there is no way to add it using adb grant command because it's a special permission.

Without this permission it's constantly restarting and this causes high CPU usage and battery drain.

Logcat:

```<code>12-01 11:59:37.352 26458 26458 E DeviceDoctorHandler: FATAL EXCEPTION: main
12-01 11:59:37.352 26458 26458 E DeviceDoctorHandler: Process: com.google.android.gms.persistent, PID: 26458
12-01 11:59:37.352 26458 26458 E DeviceDoctorHandler: java.lang.RuntimeException: Unable to create application co.g.App: java.lang.SecurityException: addOnPermissionsChangeListener: Neither user 10009 nor current process has android.permission.OBSERVE_GRANT_REVOKE_PERMISSIONS.
</code>```

What I tried is to edit /data/system/packages.xml file and add permission manually:

```<code><item name="android.permission.OBSERVE_GRANT_REVOKE_PERMISSIONS" granted="true" flags="0" />
</code>```

However, packages.xml is restored after reboot and manual changes are lost.

How to add this permission or how to reinstall GmsService with all required permissions?


问:
On Samsung devices, what does a small "two white rings inside orange circle" icon mean on the app icon?
I'm using Samsung Galaxy S21 Ultra. Why do I have some apps doubled like Settings, Chrome, Android System Web View, Google Play Services and they have a small orange icon with two circles?


问:
Update/change Sony TV KD-55XE7005 to Android TV possible?
I have a Sony TV KD-55XE7005 with the Firmware v8.905-1000. I do not exactly know what Firmware/OS it is (some SONY proprietary), but it is NOT Android TV. Other newer SONY TVs come with Android TV. Can I change my TV to Android TV?

I wish to do so that I can install applications, which is not possible with my TV. It comes with some apps, but no chance to add new ones.


问:
Samsung phones - Do their camera lens have a coating?
I have the samsung a32 5g.
Do the front and back cameras on these phones have any coating similar to what professional cameras have like "anti glare?" Does alcohol damage these coatings or is it ok if it has any?</p>


问:
How to choose which tools to download in android studio?
For personal reasons, I have limited internet. :(, that is why I want to choose only the necessary tools to compile APKs, I only give it download, for example: plarform-tools and android studio shows me the complete list of what I am downloading:

Chosen option:

```<code>      platform-tools
</code>```

What android studio wants to download:

```<code>    plarform-tools // I want to download.

    Android emulator // I do not want to download it,  because it is not necessary (since I have an android device) and it weighs a painful 300MGb.

    etc ... // All the other tools I need to compile APKs (I think), but not chosen either.
</code>```

The problem is that I swear I must download the android emulator, how can I not download the android emulator or choose to download in android studio?


问:
Dual SIM phone: Disable/Enable SIM card on Airplane Mode
I have a Samsung M32 (current Android version: 11, Knox version: 3.7).

I'm using dual SIMs, 1 for homeland and 1 for the overseas. I want to ENABLE the overseas SIM and DISABLE the homeland SIM when I get on the plane after turning ON the Airplane mode. The reason is, if I turn on the overseas SIM beforehand, I will have to pay a daily usage charge in my homeland and vice versa (I have to pay a daily usage charge for homeland when the airplane lands on another country).

Is there any software solution to this or should I disregard the dual SIMs and use the phone as single SIM?

Thanks in advance.


问:
Can I prevent hyperlinks in messages being clickable on Android?
My father has a Samsung Galaxy A6 phone running Android (don't remember the version on the top of my head, but I guess 8 or 9). From time to time he gets these scam SMS with hyperlinks, and now during the holiday season he is getting many more. He has dementia and I'm afraid that he will click on these hyperlinks.

Currently I periodically connect to his phone and delete any scam SMS I see, but now I've come up with the idea that maybe there is a way to disable hyperlinks from being clickable altogether. He rarely gets messages anyway, so there wouldn't be any legitimate need for him to click on hyperlinks. I don't want to disable or uninstall the web browser, because he surfs the web on his phone. It's just from the SMS app I would like to disable hyperlinks.

OwnerDisplayName: Johan Nilsson


问:
Continue a music playlist as an Alarm
Back when Google Play was still alive, I found an Automate script that would turn on the app at a specific time, continuing whatever playlist it had last been going through. It made for a really handy alarm, since I wouldn't reflexively turn off music the way I would an alarm, especially as it changed every day. And I really appreciated it continuing the playlist since I could curate the play order and manually switch to another playlist at the end.

Ever since Google nixed Play in favor of Youtube Music, I haven't found a way to replicate that - the only way I can get YT Music to play a playlist in order with an alarm is if it starts over every morning, which really doesn't help you get through a 50 song playlist over time.

Is there a way to use a music service as an alarm like that? To continue the set playlist in order where it left off the morning before? I'll entertain any music app and automation combination, but am really hoping there's just some setting I missed in the default Clock/YouTube Music combo.

Title: Continue a music playlist as an Alarm


问:
Calling up an arbitrary dictation app from within a keyboard app (Swype)
I've been using the Swype/Dragon keyboard for years, because I found its swipe-typing function to work best, and the voice dictation was also the best for the languages I needed.

Despite the app's discontinuation, the keyboard still works fine, in fact better than others I've tried, such as GBoard or Microsoft SwiftKey. However, the Dragon voice dictation server is down, so one can no longer use voice typing from within the Swype keyboard.

Is there any way to keep Swype as a default keyboard but call up some other dictation component/app, such as Google Voice Typing, upon pressing the microphone key in Swype (below)?


问:
Android 11 October Security Update drastically drains idle battery usage
EDIT
Ever since I installed the latest security patch available for my Phone (October 5 patch), there has been insane idle battery usage. More like 1% dropping sequentially whenever I'm sleeping

It's worth noting that, this doesn't happen when the phone is in Airplane mode, or switched off.

I picked up the Paid version of Accu Battery, it doesn't show background battery usage. Better Battery Stats (BBS) was recommended and I went for it but it doesn't work most of the time (shows No stats have been collected yet).

But I slept for the past 4 hours and it worked, but I need someone the translate it's output for me, so I can recognize what's draining my battery.

Attached are the screenshots

Model: TECNO KF7j

Android Version:  11

Device name: TECNO SPARK 7P


问:
Which Android emulator supports utilizing connectivity of PC VPN?
I want to test an APK. I connect my PC with the company VPN. There are certain URLs that are accessible only when I connect to VPN. The android app which I want to test connects with those URLs. I installed BlueStacks, and in that, I installed APK. But those URLs are not accessible in BlueStacks. Even though the PC is connected fine with VPN. I found that there is no way to tell Blusestacks to route the traffic over PC VPN. Yet.

Any advice, which emulator I have to use? Which can utilize or route its traffic to PC VPN. Like if I am able to access a website in PC. Same URL should be accessible in the APK running in the emulator as well.


问:
Android 7 breaks certificates on Samsung Browser and in Whatsapp
On a Samsung S6 Plus Edge running on Android 7, certain security certificates will break since September 2021: the workaround which Let's Encrypt implemented doesn't seem to work in Samsung Internet. I get the standard "Back to safety" screen.

For browsing this is not an issue, I can use firefox. But I have an issue with WhatsApp: it will not load preview images from such websites, as probably it routes such requests through Samsung Internet or some samsung API. Changing the default browser doesn't help.

Is there a workaround for this which doesn't involve rooting the device ?
I've seen this answer, but it looks like I can't install certificates manually if the device isn't rooted.


问:
Some android apps not working on WiFi, but working on mobile data
I've had a strange scenario these days.

While on WiFi connection, whenever I tried accessing certain apps from my android device, they would be stuck on the loading screen forever. Other apps were working fine, there were only few apps with this problem, that were not related (ex: Skype and some food delivery apps)

Then, after switching to mobile data, those apps were working fine. Switching back to wifi, the apps were stuck again at loading.

Then, I found out that multiple devices connected to this WiFi network were encountering the same problem with the same apps. Then, I knew the problem was with my network. I restarted the router and then everything worked fine again.

My question is: what could be the reason this happened? The router was untouched for at least half an year, and this problem appeared only last few days. Could it be that those apps were asking for location and the WiFi couldn't provide it properly or something happened to the network by a malicious encounter?

OwnerDisplayName: ionuttibi


问:
What is GROWTH_TEST and appGrowthLog.txt inside of it?
I recently found the folder GROWTH_TEST on my Samsung phone, and it has the file appGrowthLog.txt in it that says

"com.android.volley.NetworkErrorcom.android.volley.VolleyError: Network Disconnected"

Anyone know what this could be from? I believe it is in emulated storage as I cannot see it by going through the file tree in the files app, only when searching for it.

Thanks!


问:
When is the Final vbmeta Image Generated in a Signed Build?
BACKGROUND

I am attempting to generate my own signed builds of LineageOS 18.1 and am having trouble with the final signed OTA.  Specifically, the vendor partition is failing during AVB verification which causes a boot loop.

To perform my build, I am following the official Lineage build instructions as well as a number of external guides.  The general outline is as follows:

Build Android via mka target-files-package otatools.  Interestingly, after this step, I have a valid vbmeta at $OUT/obj/PACKAGING/target_files_intermediates/lineage_fajita-target_files-eng.*/IMAGES/vbmeta.img which has the correct hashes for both the vendor and system images found in the same directory.

./build/tools/releasetools/sign_target_files_apks -o -d $CERTDIR -p "$ANDROID_HOST_OUT" --prebuilts_path $TOPDIR/images/fajita $OUT/obj/PACKAGING/target_files_intermediates/*-target_files-*.zip signed-target_files.zip .

./build/tools/releasetools/ota_from_target_files -p "$ANDROID_HOST_OUT" -k $CERTDIR/releasekey --block signed-target_files.zip lineage-18.1-$(date "+%Y%m%d")-UNOFFICIAL-fajita-signed.zip.

Profit.

I admit, step 2 confuses me somewhat.  I get that each of the APKs is extracted and signed; that part it easy.  What I do not understand is what happens to the files after they have been signed.  If I extract signed-target_files.zip I have both a full system image at IMAGES/system.img as well as what appears to be a full system rootfs as individual files at SYSTEM/*.  Which is the "correct" system payload?  I notice there is no equivalent VENDOR/* directory; shouldn't one have been created in a similar fashion to the system files?

After step 2, I see that the vbmeta image in the extracted signed-target_files.zip is different.  Obviously, the hash for the system image has to be regenerated as the image contents have changed and, presumably, the same would have to happen for vendor and/or any other partition which has its contents updated.

Unfortunately, this is where things seem to go off the rails.  Again with the extracted signed-target_files.zip:

IMAGES/vbmeta.img has the correct SHA for IMAGES/system.img, with a different value from what is found under $OUT.

IMAGES/vbmeta.img has an incorrect SHA for IMAGES/vendor.img.  This value is also different from what is in $OUT.

IMAGES/vbmeta.img has correct SHAs for boot.img and dtbo.img which, as far as I can tell, are unmodified from the original build.

QUESTIONS

When signing an Android build, which files are used to generate the updated vbmeta image?

How do these relate to the contents of signed-target_files.zip?

Is there any good documentation on the part of the build process?  I have found a bunch of stuff on how APKs are signed or how AVB verification works but, unfortunately, startlingly little on the mechanics of signed image generation itself.


问:
Can I disable Passpoint somewhere on the OS level (not GUI)
I'm using a version of Android for the Raspberry Pi and PasspointManager is causing the machine to crash and go into an endless boot loop.  Is there any suggestion for a way to disable Passpoint on the machine altogether?  A solution for any version above 10 and ideally 12 would be very helpful.  There is no menu option to disable Passpoint as on some devices.

The fact that it's a Raspberry Pi is not relevant other than to any other users with a similar issue, this is an AOSP question.  The following instructions are added in AOSP with no additional info on where to make the alterations within WifiManager:

"Conversely if device implementations do not include support for Wi-Fi Passpoint:

[C-2-1] The implementation of the Passpoint related WifiManager APIs MUST throw an UnsupportedOperationException."


问:
Where is the bitcoin wallet file location on android smartphone?
I'm trying to find the bitcoin wallet files on my phone Anyone can help?</p>


问:
Why is my phone missing "product" partition contained in lineageos distribution?
I have a OnePlus 7T, and am trying to install lineageos on it. The adb sideload method failed, and a forum comment led me to look into doing a manual installation using fastboot as described in https://wiki.lineageos.org/devices/hotdogb/fw_update.

After extracting the images from the lineageos hotdogb distribution using payload-dumper-go, and also extracting the images from oxygen updater package for OnePlus 7T for comparison purposes, it appears that each image should correspond to a flash partition on the phone.

When I attempt to fastboot flash the partitions from the lineageos distribution, this completes successfully for most of these partitions, except "product.img", for which fastboot fails with the message

```<code>"remote: 'Partition not found'"
</code>```

This happened for a couple other images as well (recovery, system_ext, vbmeta_system). Similarly I found that the Oxygen distribution I mentioned earlier contains an image "opproduct", which gives the same message.

From adb if I run

```<code>ls /dev/block/by-name
</code>```

I can see that the flash attempts that succeeded do have a partition listed here, but the ones that failed don't. How are these partitions created? Can I add the missing ones for the lineageos distro .img files myself somehow?


问:
Do anybody know how to install twrp in Infinix Smart 2 X5515F
I've been trying to install custom ROM on my device.So first I went to install TWRP. My device is Infinix Smart 2 X5515F. I followed the steps from this website. I'vd downloaded the TWRP file for my device and tried to flash the file from fastboot mode, using the commands given on the site. But each time I tries to boot into recovery by fastboot boot twrp.img it does nothing. So I tried to get into recovery mode manually. I first rebooted the device using fastboot reboot and then shut down the device. Then I pressed power and volume up buttons. It took me to a window with a text of(no commands). I pressed volume up and power button once again and it took me to systems default recovery. The default one was not replaced by TWRP. Also each time I do the procedures it factory resets my device. Do anybody know any solution to this??


问:
What is the path to Internal memory on android phone?
I'm trying to remove files from my Internal memory (which is 99% full).

In Big Files app, I can find large files, but unclear whether they are on the SD card on Internal memory.

E.g.,
I think this is the SD card:  /storage/emulated/

What is the /path/ to files (or directories) on the internal memory?


问:
How to edit markdown files stored in Google Drive?
It's bizarre but I can't find a good way to edit my markdown files that I store in Google Drive on Android. The problem seems to be twofold -

no apps support browsing google drive files

google drive doesn't support folder-based offline sync (and syncing file by file is not good enough)

What is a nice, hassle-free to edit my markdown files stored in Google Drive?


问:
Unable to mount a block partition from Windows to Android device
I am not able to mount an image over a network onto my Android device. I tried to pull the userdata partition onto my Windows using:

```<code>adb pull /dev/block/mm..0p29 userdata.img
</code>```

Now, I am trying to mount this image on some other Android device over network using Samba/CIFS:

```<code>busybox mount -t cifs -o vers=1.0,username=...,pass=..."//ipaddr/folder" /mnt/folder
</code>```

to mention I don't see the CIFS in my filesystems, so I tried to build a kernel with CIFS support but failed to have one. I tried to push an already built cifs.ko into system/bin/modules and load it, but it still doesn't show up in /proc/filesystems.

My device is rooted, I have tried using SambaDocumentsProvider/CIFSManager but even after clicking on mount option, I don't find any files shown via the file explorers.

I can't even see any mountpoint being shown. I have set my device to permissive to get rid of any SELinux issues.

if anyone knows how to fix it, please share it with me.


问:
How to prevent Google Voice incoming calls from vibrating my phone?
How can I configure Google Voice so that when I receive a call my phone from Google Voice, the phone doesn't vibrate?

I configured Google Voice to forward call to my phone. However, even when the phone on silent mode (no sound, no vibration), the phone vibrates.

How can I configure Google Voice so that when I receive a call my phone from Google Voice, the phone doesn't vibrate? I want it to stay 100% silent.

I use Samsung Galaxy S9 (non-rooted Android 10, One UI 2.0).


问:
How to stop my notification bar from constantly scrolling down?
Whenever I am viewing some word document or PDF or the Instagram chat in my Samsung A20 phone, the notification bar automatically scrolls down even when it does not have any notification.

Even the "finger sensor gestures" (open and close the notification panel using the fingerprint sensor) have been turned off in my settings.

Please help me to solve this problem.

OwnerDisplayName: Annie


问:
Fastbooot: FAILED (remote: 'unknown command')
I've bee trying to install twrp on my Asus Zenfone Max Pro M1 X00TD. So, first I enabled USB debugging, connected my phone to computer and booted into fastboot by adb reboot bootloader. After that I tried to run command fastboot oem unlock. But the device showed the following error.

```<code>FAILED (remote: 'unknown command')
fastboot: error: Command failed
</code>```

No matter what command I try it responded in the same manner except for the fastboot reboot command which rebooted my device into system. Also in the fastboot mode the screen shows CSC FASTBOOT MODE instead of FASTBOOT MODE. I don't know if this has something to do with the problem.

this is the script I used to unlock my bootloader.

```<code>#!/bin/bash

#
#    This file is create by liunianliang
#    For download all img by fastboot
#    2018/01/17
#

# set path
if [ -z "`which fastboot`" ] && [ -e "fastboot" ];then
    for i in `echo $PATH | sed -e 's/:/ /g'`;do
        cp -rf fastboot $i/fastboot > /dev/null
    done
    export PATH=`pwd`:$PATH
fi

# check fastboot tool
if [ -z "`which fastboot`" ];then
    echo -e "Error: No fastboot tool found !!!"
    exit 1
fi

# default platform
default_platform="sdm636"

# default buildtype
default_buildtype="eng"

# default slot
default_slot="a"

# get platform from fastboot command
platform=`fastboot getvar platform 2>&1 | grep platform | awk '{print $NF}'`

# get build-type from fastboot command
buildtype=`fastboot getvar build-type 2>&1 | grep build-type | awk '{print $NF}'`

# get slot from fastboot command
slot=`fastboot getvar current-slot 2>&1 | grep current-slot | awk '{print $NF}'`

secret_key=`fastboot getvar secret-key-opt 2>&1 | grep secret-key-opt | awk '{print $NF}'`
secret_partition=`fastboot oem get_random_partition 2>&1 | grep bootloader | awk '{print $NF}'`

if [ -z "$platform" ];then
    platform="$default_platform"
fi

if [ -z "$buildtype" ];then
    buildtype="$default_buildtype"
fi

if [ -z "$slot" ];then
    slot="$default_slot"
fi

if [ "$buildtype" = "user" ];then
    echo $secret_key > default_key.bin
    fastboot flash $secret_partition default_key.bin
    fastboot flashing unlock
    fastboot flashing unlock_critical
fi

# function of download
split=$(printf "%-60s" "-")
function flash_one_image() {
    echo -e "\n${split// /-}"
    if [ -e "${platform}_$2" ];then
        echo -e "\E[0;32mbegin fastboot download ${platform}_$2\E[00m\n"
        fastboot flash $1 ${platform}_$2
    elif [ -e "$2" ];then
        echo -e "\E[0;32mbegin fastboot download $2\E[00m\n"
        fastboot flash $1 $2
    else
        echo -e "\E[1;31mCan't find file: $2 or ${platform}_$2, Skip!\E[00m\n"
    fi
}

echo -e "\nAll is download,do you want to reboot(y/n) ?"
read x
if [ "$x" == "y" ] || [ "$x" == "Y" ];then
    fastboot oem recovery_and_reboot
fi
</code>```

Recently my phone was given to service. I don't know whether they have
done anything wrong with my system firmware.


问:
SD Card suddenly not recognized?
Xiaomis Redmi 8 stopped recognizing a 128gb SD card by SanDisk a few months after first usage.
The card is not broken, neither is the phones slot.
The card works fine in my Samsung M20 and other cards work for the phone.

I guess the file system is the reason, but the phone couldn't format it in a way it is recognizeable again.

How do I know what file system the SD is using and which the phone needs?
And what else could be the problem?

Have a nice day

Title: SD Card suddenly not recognized?


问:
USB OTG only working on charging mode
I have an android tablet that came with OTG support and adb binary already installed, I would like to connect my phone to use adb but when I connect it only charges the phone and adb does not show my device connected, the default usb setting of my phone is MTP, my tablet seems not have a setting to change the usb mode.</p>

Title: USB OTG only working on charging mode


问:
Can one add a virtual background with Cisco Webex and Google Duo with a Samsung Galaxy S21?
I read on https://www.sammobile.com/news/galaxy-s21-custom-backgrounds-video-calls-duo-teams-webex-zoom/:

Galaxy S21 smartphones offer custom backgrounds during video calls via Cisco Webex, Google Duo, Microsoft Teams, and Zoom.

This is currently incorrect as the S21s, or at least most of them, do not support custom backgrounds during video calls Microsoft Teams. As for Zoom, the quote is misleading because Zoom has being providing custom background support since at least the Samsung Galaxy S9 and Android 10.

Can one add a virtual background with Cisco Webex and Google Duo with a Samsung Galaxy S21?

If it depends on the S21 version, then my main interest is the Samsung Galaxy S21 Ultra (US version).


问:
When does an app go into deep sleep?
I have a Samsung S20FE (Android 11 + OneUI 3.1).

I was learning about the different battery optimization settings. I think I have a good understanding of Android's Doze mode.

Now, I've seen there is (under Battery → Background usage limits) something called "Deep Sleep".

According to this question, it seems "Deep Sleep" is OEM specific, and is not found in every manufacturer's device.

I noticed that an application that is already excluded from "Doze mode" (in other words, an application that is NOT optimized) can not be excluded from "deep sleep mode" (in other words, can not be added to the never-sleeping-apps list).

Thus, I suppose an application goes first into "doze mode", and then into "deep sleep". Am I correct ?

If yes, under what circumstances does an app go into Deep Sleep ? Could an app like Skype (that is natively allowed to wake up the phone even in Doze Mode, I believe) go into Deep Sleep if it isn't used for a while ? Does it make sense to add Skype to Deep Sleep's never-sleeping-apps list if I want it to be always responsive (i.e., I want to receive Skype calls even if I haven't used Skype for some time) ? Or is it unnecessary ?

Title: When does an app go into deep sleep?


问:
yestel x7 - boot loop - flash
I am trying to solve a boot loop problem on YesTel x7 running on Android 9. I did factory reset but that didn't help it is still stuck. I want to flash the system as a last resort. I have never done it before. Following tutorials I installed SP Flash Tool Download and mediatek-preloader-usb-vcom-drivers  I was trying to find firmaware for that model, but couldn't find any apk file.

Does the flush have to be done with corresponding to the model apk file or can it be done with some sort of universal apk?

Title: yestel x7 - boot loop - flash


问:
Redmi 9 Prime hard bricked
I will explain every step I took till this point to maybe help explain the situation

I ran into multiple problems from today's evening

The first was the drivers i guess, I tried to unlock the phone (Redmi 9 Prime) after waiting more than sufficient time in the official tool. But the official tool won't recognize my phone so I tried installing many drivers, tried many cables, different ports, etc.
Nothing seemed to work.

I came across an unofficial tool called XiaoMiToolV2. This recognized my phone and unlocked my phone successfully.

After that I tried to install TWRP on my phone.
The commands I used were:

```<code>fastboot flash recovery twrp.img
fastboot flash vbmeta vbmeta.img
</code>```

Unfortunately I messed up in the next command, instead of trying to boot into the TWRP image, I accidentally flashed it to the boot partition

```<code>fastboot flash boot twrp.img
</code>```

I was suppposed to delete the flash word from the line..
I pressed enter before I realized and it was done..
I tried the originally intended command anyway:

```<code>fastboot boot twrp.img
</code>```

But it was too late i guess, the phone was bricked and I could not access anything other than the Fastboot mode itself.
Next to fix that I tried using the same XiaoMiToolV2 which had an option called Fix Bootloop or something along that line
I pressed that and it seemed to download the latest stock ROM and flash it with fastboot

The process seemed to be successful but the bootloop was still there.

So I looked into it and downloaded the MIUI 12.5 Global Fastboot ROM along with MiFlash tool

This ended up being unsuccessful as the it kept returning "Flash preloader error"

I looked at the "flash_all.bat" file and tried executing the command that flashes the preloader manually using fastboot. It worked, so I did the same thing for the subsequent commands in order. Everything was successful and I was hopeful ( I am suspecting the firmware was not compatible with my phone but it did say "lancelot" idk why then and forcing to be flashed bricked my phone? )

Then I finally did fastboot reboot after all the operations got over and that's it
Till that point the phone was atleast turning on and booting to Fastboot mode, then it just didn't respond to anything completely powered down

I tried charging the phone for 30 minutes, still no response.
After a bit of research I am now skeptical that the device may be completely bricked.. But I haven't done anything outside the things I mentioned here..

Title: Redmi 9 Prime hard bricked


问:
How can I simultaneously use mobile data and WiFi?
Through a combination of Afwall/Netguard and Automate/Tasker, I'd like to use both my mobile data and WiF at the same time.

For example, I'd like for some live/realtime widgets on the homescreen to use WiFi, but at the same time I'd like the browser session I'm on to be using mobile data.

The current setup I have is this - if Chrome is on the foreground then turn of WiFi and use mobile data. When it's not in the foreground use mobile data.

But the problem with this is that it's slow. It will take a sec or two to turn off mobile data and switch on WiFi and wait for it to connect, and vise versa. If they are both on though, it wouldn't be this slow.

Any tips?

Android 7 | Rooted 1 | Xposed


问:
Installing drivers consecutively for all interfaces/ports within an inf file
This concerns an inf file which contain a number of interfaces/ports that need support of drivers. Instead of installing the driver for each interface/port one by one, is there a way to install the driver consecutively (one after another) to all the ports/interfaces in one go?

Does installing the driver for interface/port at the bottom of the pack ensure driver is installed for all interfaces/ports.
Hoping someone in the forum can give an answer


问:
Disable power saving mode for WebView on Android 9
I have a Samsung Galaxy Tab Active2 (SM-T390) tablet with Android 9 and One UI 1.1 and the latest available updates. An app with an WebView looses connection after about six minutes of standby. I tried to disable enrgy saving for the app as well as Chrome and Android System WebView (Chrome and WebView disables each other). This approach does work for another Samsung device with Android 10, but not on Android 9.

Is there another app, which I have to exclude from power saving? Or is this a bug in Android or from Samsung?


问:
Prevent Termux from opening STL files
I have Termux installed and when I try to open STL (3D model) it opens a Termux instead my STL viewer. How to prevent this behavior? There is no setting for Termux "open by default".

Title: Prevent Termux from opening STL files


问:
How can I unlock a carrier locked Android phone?
Is there a way to unlock a Samsung phone locked to a carrier without contacting the carrier for its unlock code?</p>


问:
Is it possible to recover a corrupt Samsung note?
I lost some notes from the app Samsung Notes and I think I know why or at least how to reproduce the event. This happens when the phone has no space left (0 free bytes). When whatsapp app makes a backup at 2am, it eats a lot of space and then a few minutes later it comes back to normal. When I click in a note to open it while the phone has 0 free bytes, the note doesn't open anymore (message: "Can't open note. File corrupt"). It also doesn't let me share it anymore or convert it to pdf or text (message: "File corrupt or not supported). The phone is a Samsung Galaxy A5. I'd like to know if the notes are really lost forever or there is something I could do. Thanks.</p>


问:
How do I disable auto-start in Android 11?
How can the program auto-start be controlled in Android 11?

I am using a Celero5G phone running the latest version of Android 11. I have been unable to find any help on this matter.


问:
How can I ring my phone when it connects to WiFi
My WiFi has been spotty lately. I'm working from home, so this means work outages of 1-10 minutes every few days.

I would like to use my mobile phone as an alarm, so that when it reconnects to WiFi it will ring & let me know to get back to my desk.

Can it be done?


问:
How to remove Google Smart Lock saved passwords in Instagram?
How do I remove these accounts and saved passwords from Google Smart Lock in Instagram?

I have tried all different methods to remove it but no use. I have deleted all of my Chrome passwords, Google passwords, Instagram clear all data, turn off auto-fill for Google, but still this doesn't go away.

Moreover, I don't have access to these accounts in Instagram too. Please help me remove this Smart Lock popup along with its saved accounts.


问:
Cant uninstall but device admistrative is empty
I have an app which was downloaded by pre-owner of the phone and I can't uninstall.That app uses all permissions and I cant change its permissions nor uninstall.Im using samsung galaxy A8 star (android 10 +)</p>


问:
Granular Audio Controls like a PC
Is there a way to:

Allow for an indefinite number of apps to play audio at the same time. Or in other words, to not allow any app to stop the audio playback of another (other than calls).

If 1. is possible, adjust the volume each app on a per app basis

thanks

Title: Granular Audio Controls like a PC


问:
Disable IPv6 via WIFI to Pixel 3a
I have Pixel 3a without SIM card, so I use this phone only with WIFI.

How can I disable IPV6 in this phone? That the phone will use only IPv4?

Title: Disable IPv6 via WIFI to Pixel 3a


问:
Where to find Memos app folder in Samsung Galaxy J3
I am having a major problem with my Galaxy J3 (besides just being a J3 ^_^). The thing has been doing random reboots when in the middle of work, went to the bios screen a couple times, then started trying to install (an update?) which failed, then showed the android icon falling, syntax came up saying erasing, then started scrolling files and said "formatting".

In a panic, not knowing what that meant, I pulled out the battery and left it out a few minutes. When it was put back in it rebooted as normal but that was the last straw. Contacted Samsung and ordered a new phone. I've been successful with Smart Switch for the mains like contacts, photos etc. But Samsung neglected to clue me in that Smart Switch has to work for literally 2 days to move everything? Is this true?

Anyway, still need apps and "Memos" which had no visible backup and restore. All I can find is to manually share to Gmail which would take a LONG time since I have literally over 500 memos. Probably should have done it anyway because now the phone has gone to not powering on at all. I've had the battery tested and found it has some damage (over heating?) but the new battery isn't giving a charge.

At this point I could care less about the J3 phone (horrible thing) but I do need those memos for sure! Anyone know how to access them when the phone is apparently dead? Or where on the phone folders if connected to your laptop? Any recommended data recovery tools you can vouch for?

Don't mind paying a little for good results but of course free is always best if it does the job. Thanks for any advice!


问:
Screenshots with ICS are 0-byte long
ICS does seem to take screenshots successfully on the Galaxy Nexus, but the files are all 0-byte long in "My Computer\Galaxy Nexus\Internal Storage\Pictures\Screenshots".

Has someone seen this? What's wrong?

Thank you.

ContentLicense: CC BY-SA 3.0

Title: Screenshots with ICS are 0-byte long


问:
Is there a way to index and search all data on my phone?
After taking a look at my options, I settled for Android-Sync to sync the Nexus with Outlook.

One of the issues I have, though, is that Android-Sync in its Notes and Tasks applications doesn't support...

autocompletion

last modified date

...which means it's a pain to locate items and it forces users to scroll down the whole list and try to find the item they're looking for.

Is there a way to index and search any data on the phone, even apps that don't ship with the Nexus by default?


问:
Problem syncing MS Exchange after ICS update
After updating my T-Mobile Galaxy SII to ICS last week my Exchange account no longer will sync.  I have gone through the process of establishing it as a new account several times both with a T-Mobile tech and my organization IT tech.  It appears to get stuck at the point of downloading and I get a which screen with a circle in the middle and the word Loading underneath.  Nothing comes in: email, calendar or contacts.  When I try to send an email it gives me a connection error.
It worked fine before the update and my wife's phone, an unupdated twin, continues to sync with no problem to the same exchange server.
Does anyone have a solution to this?</p>


问:
Can't mount sdcard from Recovery Mode/Clockworkmod

Possible Duplicate:

  Why can I not access the cyanogenmod zip on my sd card?

I'm trying to install a custom ROM on my rooted Galaxy S2, I've been following this guide:
http://www.theandroidsoul.com/android-4-0-4-for-galaxy-s2-i9100-flash-the-f1-galaxynexus-rom/

I've placed the rom inside an external sdcard, entered Recovery mode (clockworkmod CMW-based Recovery) and clicked "install zip from sdcard" then "choose zip from sdcard", after that the console presented me with an error "E:Can't mount /sdcard/".

The sdcard works fine and I'm able to read/write from/to it without any issues.


问:
Why Mi Mover doesn't move apps but samsung smart switch can?
I move all apps to mi mover.

Some apps are moved

Another apps have a message "not installed"

This is weird. The whole point of using mi mover is so I don't have to reinstall all those apps one by one.

So I reinstall one by one.

Then I tried to move the apps again.

Now it seems to be working.

However, when I open whatsapp in the new phone I do not see my old whatsapp. I basically have to input my phone number again and uses back up again.

So basically it's useless.

I have to reinstall every app and move them like normal like usual.

So what's the point of using mi mover?

When I use samsung switch I think I got things moving quickly.

Why the differences?


问:
Recover data from bootlooping phone
The phone is bootlooping and I can only get to fastboot mode. It says PHONE Unlocked, but I can't flash TWRP. How can I recover the data?</p>

Title: Recover data from bootlooping phone


问:
Root Samsung device with Qualcomm chipset, without tripping knox?
I currently own a Samsung device with 730g snapdragon processor,I wish to root the device

After some research what I have understood is, Exynos processors Have efuse, which can be blown when unsigned code is run during boot(when trying to root) and essentially trips knox permanently

Since my phone has Qualcomm Snapdragon processor, would it trip knox permanently when I try to root the device?


问:
Can anyone help me install a Custom OS on this old tablet?
I have an LG G Pad™ 7.0 LTE that I got as a gift and I want to install a Custom Rom such as LineageOS on it.  The only problem is that I do not know how to do this on a somewhat old tablet such as this. The tablet in question is:

This is a LG G Pad™ 7.0 LTE that used to be from AT&T.

The operating system is an Android 5.0.2 or Lollipop.

I was following the instructions on how to install the Custom Rom but I struggle with rooting portion of it. The recommended rooting programs such as Kingaroot or iRoot have failed and I think bricked my tablet. I am looking fomr more hlp with this. Can anyone help with rooting my tablet?


问:
Where I can see the list of the devices connected to my Wi-Fi hotspot on Android 12?
I use Android 12 + Google Pixel 6.

I can't find the list:


问:
Complete backup in offline mode
In front of me I have an Android phone that has been infected with a malware installed as system service. I want to perform a factory reset on this phone, but first I need to make a backup, of course. The phone needs to stay in offline mode, due to the malware.

After making the backup, I want to selectively reinstall the apps and restore their data. For now, I'm assuming that I don't need the APKs, but having them wouldn't hurt.

One thing is that the malware has installed itself as a system service, so can I even trust my backup anymore?

How should I (as a software developer) proceed?

More importantly, how should an ordinary Android user deal with this situation? This means the only allowed tools are those that have a GUI and that have acceptable usability. And, of course, no root access to the phone. Shouldn't Google as the manufactorer of the Android operating system provide these very basic services?

Title: Complete backup in offline mode


问:
How to make calls ring (with sound) while messages vibrate?
This seems like a fairly basic thing but I'm having trouble nonetheless. I'd like my calls to ring (with sound) while messages vibrate (no sound). How do I do this?

Setting sound mode to "sound" and turning notification volume down means calls ring, but I get no vibration. But setting sound mode to "vibrate" means messages vibrate, but I get no ringing for calls.

I am using Android 11 and have a Samsung Glaxy A71.


问:
Chrome doesn't always suggest PDF reader when trying to open PDF files from Downloads tab
I have downloaded a PDF file within Chrome: https://github.com/besp9510/dma_pwm/blob/master/doc/raspberry_pi_dma_pwm.pdf

When I want to open it from the Downloads tab, it offers me ridiculous options instead of the installed PDF reader or office application: GymRun, Automate, and RAR.

Tried clearing the cache, but that didn't help. Opening the PDF from a file browser directly opens it with the office app.

Why does this happen, and is there anything to fix this?


问:
How to enable WiFi sharing in Android 8.1 in LG Nexus 5x
Currently, when we try to turn on Hotspot in Nexus 5x, then WiFi just gets disabled and only mobile data is shared over WiFi instead of already connected WiFi (broadband). Using Netshare WiFi sharing on LG Nexus 5x isn't working all that great for WiFi sharing with Mac.

When Samsung Galaxy S7 and above can achieve this feat, then I guess that there should be a way to achieve the same for stock Android in Nexus 5x.

Is there a way to enable wifi sharing in Android 8.1 in LG Nexus 5x when we turn on the default hotspot on? Is there a way to share WiFi in Nexus 5x on Android 8.1 using methods such as the one mentioned at How do you enable Hotspot Wifi Sharing on Nexus 5 Android M version on Sprint, Tmobile, and AT&T??


问:
How to install LineageOS on the Fairphone 3+
This is my third attempt to install LineageOS (I've tried already with two other apparently supported devices, to no avail). I'm close to giving up. So I'll try to be as clear as possible.

I'm very comfortable using the Linux command line (I use it every day at work). My laptop has Fedora installed on it.

I have no "technical" experience with Android. My only experience is just using it as any other "non-technical" user would do.

I have a brand new Fairphone 3+ to which I want to install the latest LineageOS. The Fairphone 3+ is listed in the official list of supported devices.

I followed the instructions mentioned here. I enabled USB debugging and unlocked the  bootloader successfully. Then I went ahead and tried to flash the latest Lineage Recovery image (got it from here), when I encountered the first problem:

```<code>$ sudo platform-tools/fastboot flash boot lineage-18.1-20211213-recovery-FP3.img
fastboot: error: boot partition is smaller than boot image
</code>```

The first option that came to my mind was to use TWRP because I know the image size of TWRP is smaller, but then I saw the warning at the end of this page that says that "Fairphone does not support the use of the TWRP". So I abandoned the idea of using TWRP. Then I read here that I should try to flash to boot_a or boot_b instead (no idea what that means). So I did:

```<code>$ sudo platform-tools/fastboot flash boot_a lineage-18.1-20211213-recovery-FP3.img
Sending 'boot_a' (65536 KB)                        OKAY [  2.194s]
Writing 'boot_a'                                   OKAY [  0.629s]
Finished. Total time: 2.953s
</code>```

After that I went ahead and booted into recovery. I was surprised that it worked, but it did and I saw the Lineage Recovery menu. I did the mentioned factory reset successfully. But I got a problem during sideload:

```<code>$ sudo platform-tools/adb sideload lineage-18.1-20211213-nightly-FP3-signed.zip
adb: failed to read command: Success
</code>```

I noticed at the bottom of the phone's screen the following text:

```<code>Now send the package you want to apply
to the device with "adb sideload <filename>"...
</code>```

But when I executed the actual adb sideload ... command no text was appended to the phone's screen.

Many sites mention that if the sideload stops at 47% and shows the failed to read command: Success message it means that it was in fact successful. But in my case there is no percentage at all. It seems as if the transfer doesn't even take place. Anyway, if a boot the phone normally I still boot into the "original" (or "factory") Android, not into LineageOS. So clearly the sideloading is not successful.

What am I doing wrong? Is this problem maybe related to the first one (that the Lineage Recovery image was too big for the boot partition)?

I'm slowly getting the feeling that the world of Android hacking (in the sense of just playing around) in general and of LineageOS in particular is just impenetrable and made just for a very few lucky geniuses.


问:
Non oem headphones not recognized byphone
I have a blackview bv9900 pro and I have been trying to find a new set of headphones as the oem ones are not comfortable, however all the usb-c headphones and even a usb-c to 3.5 mm adaptor I've bought are not working with the phone.

The operating system doesn't even seem to recognize that anything has been plugged in. I've tried some very basic usb-c headphones from amazon (https://www.amazon.com/gp/product/B07V6FXJ3Q and
https://www.amazon.com/gp/product/B097MXHTH9) and the 3.5mm usb-c adapter (https://www.amazon.com/gp/product/B07VX67Y2M/) none of these have worked, however, if I plug the OEM headset in it works just fine.

I'm wondering if there are any tools I can use to try and get more information from the android system to see if it recongizes that something has been plugged in and if so what it thinks it is that has been plugged in, preferably unrooted, though I don't have issues with going through adb but I don't really know where to start with this. Blackview support has been totally useless in helping me figure out whats going on. The phone is currently running Android 10.


问:
How can I copy to the clipboard the title of a webpage on Chrome for Android?
How can I copy  to the clipboard  the title of a webpage on Chrome for Android?

I use Android 12 with a Google Pixel 6.


问:
Is it possible to "freeze" applications so that they do not run unless "unfrozen" - essentially make them work only when they're in the foreground?
What it says on the tin.

I'm used to a work partition, but since recent android versions don't support the required storage permissions (which means that I can't get data out of the work partition short of a root terminal) I have to install chat applications in my main profile.

I don't like how applications like Whatsapp run in the background constantly, and am trying to find a way to freeze them, so they only run when they're in the foreground.

I'm using Android 11.


问:
Has the choice of "network mode" an effect on battery when mobile data is switched off?
I have read that 2G uses less battery than 4G LTE, especially if I don't need much data.

Some sources :

https://www.uswitch.com/mobiles/guides/how-can-i-make-my-phone-battery-last-longer/

Does 4G consume more battery than 3G if I don't use it for data?

https://www.telecomhall.net/t/why-lte-4g-drains-battery-faster-than-2g-3g/138

Now, my question is : if I switch mobile data off, has the "mobile network" setting (2G/3G/4G) still an impact on battery consumption ?

The reason behind this question is that I am looking for the most battery-efficient configuration in my use case. Most of the time I am connected through Wi-Fi. Mobile data is switched off. Now, as for the mobile network setting, is there some kind of optimization to be done ? I'm hesitating between 2 settings :

The default setting is 4G with VoLTE on

Or would it be more battery efficient to switch VoLTE off, and activate 2G ?


问:
SD Card formatting
Bought a 128G card I meant to use as mixed internal / portable (or 100% if not possible with mixed) on a

Galaxy-Xcover-4 (SMG390F)

Android version 9

Kernel 3.18.91

Not rooted (Though I could do it I guess, if there's any method and it is the only way to reach the goal).

First I tried to see if it was possible to do from Phone, but did not find any.

Then I did:

```<code>adb shell
sm set-force-adoptable true
sm partition disk:179,32 mixed 34
sm set-force-adoptable false
</code>```

It got partitioned, but did not increase internal memory + using the elipsis on SD card view (Settings -> Device Care -> Storage -> SD Card) only crashed. Tried to reboot. But to no avail.

Then I deleted the partitions and re-inserted the card. It asked about formatting the card, and I did; but it is all portable. (I.e. System / Internal is not increased.)

Then I tried same adb session as above but with sm partition disk:179,32 private (I.e. use 100% of SD-card as internal). This also formatted SD-Card, but now it is not recognized at all.

Re-booted, but still the same.

Is there a way forth to make it increase internal storage?

The phone only have 15G natively and I am constantly pushing close to 100% usage.

Title: SD Card formatting


问:
How to enable adb in frp locked phone?
By editing boot.img-ramdisk with ro.secure=0 ro.debuggable=1 persist.sys.usb.config=mtp,adb, packing again with mkbootimg produces boot.img.
Heimdall is used with partition information table, and flashed for sboot.bin(bootloader) and boot.img(BOOT).  I conjectured that adb devices would produce connected device.  But experiment shows NO device connected.  I turned off the developer option before going into download mode to mimic situation of locked frp.

Hypothesis is that flashing with adb enabled boot.img would enable adb debugging after flashing.  What is wrong with this hypothesis?

Title: How to enable adb in frp locked phone?


问:
Bootloop and inaccessible recovery mode. Fastboot stops when connected to PC
I have ASUS Zenfone Max Pro M2. I installed Pixel Experience and recently tried to update it, but it stuck in a boot loop.
My bootloader is unlocked and the device is not rooted.
Also, the Recovery mode is not accessible.
Fastboot mode is accessible but when connected to and PC, a black screen is visible with a message "press any key to power off".

If there is any way that can reset the device and install any ROM (root or without root).
Please share it.

Opened Fastboot:

After Connecting to PC:

Entering fastboot devices on PC:


问:
How to create a homescreen shortcut via ADB?
I'm using as an example the open-source app ConnectBot to demonstrate what I want to achieve. I can create a connection's shortcut through the homescreen's widget functionality, but I want to know how to create shortcuts through adb if possible.

Part of the app's AndroidManifest.xml:

```<code>    <activity
        android:name=".HostListActivity"
        android:label="@string/app_name"
        android:launchMode="singleTop"
        android:resizeableActivity="true">
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>
            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.CREATE_SHORTCUT"/>
            <category android:name="android.intent.category.DEFAULT"/>
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.PICK"/>
            <category android:name="android.intent.category.DEFAULT"/>

            <data android:scheme="ssh"/>
            <data android:scheme="telnet"/>
            <data android:scheme="local"/>
        </intent-filter>
    </activity>
</code>```

From the source code of HostListActivity.java:

```<code>    @Override
    public void onClick(View v) {
        // launch off to console details
        Uri uri = host.getUri();

        Intent contents = new Intent(Intent.ACTION_VIEW, uri);
        contents.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        if (makingShortcut) {
            // create shortcut if requested
            ShortcutIconResource icon = Intent.ShortcutIconResource.fromContext(
                    HostListActivity.this, R.mipmap.icon);

            Intent intent = new Intent();
            intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, contents);
            intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, host.getNickname());
            intent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, icon);

            setResult(RESULT_OK, intent);
            finish();

        } else {
            // otherwise just launch activity to show this host
            contents.setClass(HostListActivity.this, ConsoleActivity.class);
            HostListActivity.this.startActivity(contents);
        }
    }
</code>```

So in order to make a shortcut icon of a particular connection I tried the following:

```<code>adb shell am broadcast -n org.connectbot/org.connectbot.HostListActivity
-a android.intent.action.CREATE_SHORTCUT --es android.intent.extra.shortcut.INTENT '"intent://user@host:XXXX/#HostNickname#Intent;scheme=ssh;package=org.connectbot;end"'
--es android.intent.extra.shortcut.NAME "ShortcutName" --esn android.intent.extra.shortcut.ICON_RESOURCE
</code>```

The result I get:

```<code>Broadcasting: Intent { act=android.intent.action.CREATE_SHORTCUT flg=0x400000 cmp=org.connectbot/.HostListActivity (has extras) }
Broadcast completed: result=0
</code>```

But nothing happens. If I replace broadcast with start, HostListActivity fires up and shows all stored connections. When I click on the host for which I want to make a shortcut, the activity closes (same as when I'm manually adding a shortcut via the widget screen), however no shortcut is added anywhere to the homescreen.

By the way the intent:// URI that is passed as an extra is correct. I can succesfully use that URI to open a particular connection with ConnectBot:

```<code>adb shell am start '"intent://user@host:XXXX/#HostNickname#Intent;scheme=ssh;package=org.connectbot;end"'
</code>```


问:
Reasons behind android always booting into twrp insead of system after reset?
i have the same problem as this question How to fix a phone that always boots into TWRP when OS exists . Except i did the reset via settings "Erase all" and my device is not samsung. Also i noticed, if i stay in twrp for some time, a small area around/above my charging pin's temperature increase abnormally.</p>


问:
Copy Galaxy S4 encrypted storage to computer
My dad passed this summer,

he had a galaxy S4 which probably holds many photos I'd like to recover. I tried many passwords to unlock the phone but now it says that if I try two more times it'll erase the phone. The phone seems to require the password before booting. I saw the logo and now a black screen asking for the pass.

There is a good chance I can find the password if I can try multiple ones. Is there a way to:

Remove the attempt number limit?

Copy the encrypted storage on my computer and use some tools to try passwords and decrypt it?

I'm not a 100% sure the S4 has encryption, maybe I can lift the password if it isn't?

A best case scenario for me would be to have a way to test passwords using command line, I'm a programmer and could make a small script to test combinations of passwords and numbers I know he used.

Any help or insights appreciated.


问:
What could explain that a USB cable starts charging my Samsung Galaxy S9 phone after ~2 secs, but takes over 5 min to start charging my Pixel 6 phone?
I have a male-to-male, USB-A-to-USB-C cable. It starts charging my Samsung Galaxy S9 phone after ~2 secs, but takes over 5 min to start charging my Pixel 6 phone. What could explain that?

I have no information on the cable as nothing is written on it. I tried different chargers: the cable charges my Samsung Galaxy S9 phone but never on my Google Pixel 6 phone. My other male-to-male, USB-A-to-USB-C cables charge my Google Pixel 6 phone just fine (i.e., within a few seconds after getting plugged).

Samsung Galaxy S9 charging:

Google Pixel 6 not charging:


问:
Samsung stock rom has 2 vbmeta image(s) but Heimdall only shows one partition for vbmeta
I'm trying to flash stock firmware back to a Samsung Galaxy A51 (SM-A515F), when extracting the rom files and decrypting them from their lz4 formats, I noticed there were 2 vbmeta images (not to be confused with vbmeta_samsung, they're both named "vbmeta.img"), one was at the BL while the other was at the AP, when flashing from Odin3, I noticed that it flashed "vbmeta.img" 2 times, on Heimdall however there was only a single vbmeta partition option available instead of 2, printing the PIT also shows theres only 1 vbmeta partition, how do I flash both vbmeta image(s) to the device using Heimdall? I do not want to use a Windows vm just to get Odin working there.

AGAIN, NOT to be confused with "VBMETA_SAMSUNG", I am talking about "VBMETA"


问:
Is it possible to stream computer screen to an android phone via USB?
I'm trying to figure out if its possible to use USB debugging on an android phone to view a computer screen. (Not the other way around). I've played with Chrome remote desktop, which uses wifi, and splashtop, which promises to be wired but fails to even run. Are there any other alternatives?</p>

OwnerDisplayName: HC C


问:
Use physical buttons to take picture when camera is open
Is there an app or other way to use the physical buttons on my phone to take a picture when the camera is open? (I see various apps to open the camera using those buttons, but not to take a picture). It would be a lot easier than trying to tap the screen while using only one hand.

(It's a Motorola G8 that I have if that is relevant).


问:
Get the real hardware specs of fake device
I brought a new phone and it turns out to be a fake china phone.
But the settings are somehow spoofed and show fake details.
is there a way to get the real details?

EDIT

It is a Huawei mate 40 pro plus fake. When I go to settings and about phone, it shows android 10, RAM 12GB, storage 512GB, 10 core CPU, etc.
But all of this information is wrong, I know this as when I download just a small app of size 100MB the free storage reduces by 100GB.
RAM is not 12 GB as the device is very slow when I play some games.
Also, it seems like there are 5 rear cameras but actually only one is working.


问:
Deleted media is showing in whatsapp
My phone is Redmi 8A Dual with MUMI version 12 stable, Android 10 . In using WhatsApp, it is showing space of deleted images and videos. On clicking them This file is not supported is showing.

Does anyone know what to to?
I Don't understand what to do to remove these items.

Title: Deleted media is showing in whatsapp


问:
Why does my Samsung A42 delete photos off my phone at the end of the day?
I recently purchased a Samsung A42 and when I take photos and videos, they are on the Gallery that day, but the next morning they have been removed.  They are auto-backed up to Google Photos, but I'm not using Verizon or Samsung Cloud.  I've looked through other forums and the settings in Google Photos and Gallery to make sure there is NOT a setting selected to automatically remove the photos after back up.  If I download a picture, it goes to the "Downloads" or "Restored" albums in Gallery and those don't get removed. Confused...thanks!</p>


问:
Transfer data of phone with partially broken touchscreen
I recently dropped my S7 edge and the bottom half of the screen is now unresponsive (It still displays the image but the touchscreen doesn't work) I'm getting a new phone for christmas so I'm not bothered about repairing the screen. However, I would like to get some photos off it.

The problem however, is that the "approve data transfer" message appears in the broken portion of the screen. Does anyone know a way around this?

note
because the bottom of the screen isn't working for touchscreen I am unable to use the keyboard

Thanks


问:
What data is still left after factory reset?
I have an unlocked Xiaomi Poco X3 (surya) and I got banned in Jodel. The app doesn't have many permissions, but somehow the App recognize me even after a factory reset.
On every new instance I only create a new Google Account and Download the app.
I tried:

Wipe everything in TWRP

Fastboot flash with this

Spoof MAC Address with Root

Use VPN

Which data remains on the device after flashing and wiping everyhing I could?

How could an app recognize you after all this?

I appreciate any help!


问:
How can i set location manually with adb?
i dont know how to set location over shell with commands, for my test i use "bluestacks 5", i got an native app for setting location manually with mouse click but i need to set it with shell this is my logs and i connot found how to make that :

gps coordinates are anonymized

Native bluestack APP for setting location : com.location.provider

```<code>adb shell getprop ro.build.version.release
9
adb shell getprop ro.build.version.sdk
28
</code>```

returned logs with logcat, when i click on the maps for setting new gps location with my mouse

```<code>    12-23 11:32:19.446  1956  2327 I GnssLocationProvider: WakeLock acquired by sendMessage(REPORT_LOCATION, 1, Location[gps 48,384367,7,774755 hAcc=1 et=?!? alt=0.0 vel=0.0 vAcc=??? sAcc=??? bAcc=???])
12-23 11:32:19.447  1956  1970 I GnssLocationProvider: WakeLock released by handleMessage(REPORT_LOCATION, 1, Location[gps 48,384367,7,774755 hAcc=1 et=+6m52s385ms alt=0.0 vel=0.0 vAcc=??? sAcc=??? bAcc=??? {Bundle[{satellites=8, maxCn0=65, meanCn0=49}]}])
12-23 11:32:19.447  1956  2327 I GnssLocationProvider: WakeLock acquired by sendMessage(REPORT_SV_STATUS, 0, com.android.server.location.GnssLocationProvider$SvStatusInfo@1db68ac)
12-23 11:32:19.448  1956  1970 I GnssLocationProvider: WakeLock released by handleMessage(REPORT_SV_STATUS, 0, com.android.server.location.GnssLocationProvider$SvStatusInfo@1db68ac)
12-23 11:32:19.471  3490  3890 I Counters: exceeded sample count in FrameTime
12-23 11:32:20.448  1956  2327 I GnssLocationProvider: WakeLock acquired by sendMessage(REPORT_LOCATION, 1, Location[gps 48,384367,7,774755 hAcc=1 et=?!? alt=0.0 vel=0.0 vAcc=??? sAcc=??? bAcc=???])
12-23 11:32:20.449  1956  1970 I GnssLocationProvider: WakeLock released by handleMessage(REPORT_LOCATION, 1, Location[gps 48,384367,7,774755 hAcc=1 et=+6m53s388ms alt=0.0 vel=0.0 vAcc=??? sAcc=??? bAcc=??? {Bundle[{satellites=8, maxCn0=77, meanCn0=44}]}])
12-23 11:32:20.450  1956  2327 I GnssLocationProvider: WakeLock acquired by sendMessage(REPORT_SV_STATUS, 0, com.android.server.location.GnssLocationProvider$SvStatusInfo@5582975)
12-23 11:32:20.451  1956  1970 I GnssLocationProvider: WakeLock released by handleMessage(REPORT_SV_STATUS, 0, com.android.server.location.GnssLocationProvider$SvStatusInfo@5582975)
12-23 11:32:20.480  3490  3890 I Counters: exceeded sample count in FrameTime
12-23 11:32:21.150  1956  1971 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.location.PROVIDERS_CHANGED flg=0x10 } to com.google.android.gms/.chimera.GmsIntentOperationService$PersistentTrustedReceiver
12-23 11:32:21.150  1956  1971 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.location.MODE_CHANGED flg=0x10 } to com.google.android.gms/.chimera.GmsIntentOperationService$PersistentTrustedReceiver
12-23 11:32:21.154  2396  2396 D BstCommandProcessor-Service: onStartCommand called
12-23 11:32:21.154  2396  2396 D BstCommandProcessor-Service: Saving new location: 32.121232346,9.7914821548497375
12-23 11:32:21.155  2531  5077 I NearbyDiscovery: FastPairHandler: Received action android.location.PROVIDERS_CHANGED [CONTEXT service_id=49 ]
12-23 11:32:21.158  1956  1971 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.location.PROVIDERS_CHANGED flg=0x10 } to com.google.android.gms/.chimera.GmsIntentOperationService$PersistentTrustedReceiver
12-23 11:32:21.158  1956  1971 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.location.MODE_CHANGED flg=0x10 } to com.google.android.gms/.chimera.GmsIntentOperationService$PersistentTrustedReceiver
12-23 11:32:21.158  2396  2396 D BstCommandProcessor-Service: saveLocationDataToSharedPrefs : 32.121232346,9.7914821548497375
12-23 11:32:21.163  2531  5077 D BluetoothAdapter: isLeEnabled(): OFF
12-23 11:32:21.166  2531  5077 I NearbyDiscovery: FastPairScanner2: eventType=LOCATION, intReq=false, scanning=false, scanAllowed=true, bleEnabled=false, bleScanAvailable=false, lockScanRate=false [CONTEXT service_id=49 ]
</code>```


问:
How does Android know the router administrator interface's local IP?
I saw:

This links to the local IP of the router's admin interface.

How does Android know the router administrator interface's local IP?


问:
Motorola Triumph - how to decrease internal memory (clear log files)

Possible Duplicate:

  What can I do to manage my phone's internal storage?

  Something is secretly eating up my tablet memory and I need help finding it

I am wondering if there is a way, without root, to analyze the details of the internal memory on a Motorola Triumph and clear some extraneous (if they exist) log files. Many thanks in advance.


问:
Unable to delete eSIM profile on Google Pixel 3a
I have recently changed phone carriers. I cannot download an eSIM for my new carrier while it is supposed to be compatible with the Pixel 3a. They claim this is because I still have the eSIM profile from my previous carrier. For some reason, I cannot erase this old eSIM profile manually. I get the following error message: “Can't erase SIM. This SIM can't be erased due to an error. Restart your device and try again.” Of course, I still can't erase the eSIM when I restart the phone.

I have contacted both carriers, as well as Google. They had me reset Wi-Fi, mobile & Bluetooth which didn't work. The next step they advise is a factory reset. I'd like to find another way to erase this faulty eSIM profile and I'm not completely sure that a factory reset would be “strong enough” actually.

Has anyone ever encountered a similar problem or knows a way to force the deletion of the old eSIM profile?

Edit: as Robert suggested I have checked the device log. Here is the result:

```<code>12-25 19:36:01.101  2463  2463 I Showing dialog with title = %s: Effacer ce profil SIM téléchargé ?
12-25 19:36:01.145  1770  1921 I ActivityTaskManager: Displayed com.android.settings/.network.telephony.DeleteEuiccSubscriptionDialogActivity: +122ms
12-25 19:36:01.200  2463  2463 W Choreographer: Frame time is 0.220733 ms in the future!  Check that graphics HAL is generating vsync timestamps using the correct timebase.
12-25 19:36:01.200  2247  2247 W Choreographer: Frame time is 0.220733 ms in the future!  Check that graphics HAL is generating vsync timestamps using the correct timebase.
12-25 19:36:01.560  1770  3866 I WifiService: startScan uid=1000
12-25 19:36:01.577  1770  3866 I WifiService: startScan uid=1000
12-25 19:36:02.188  2463  2463 I DeleteEuiccSubscriptionDialogActivity: Subscription deletion confirmed
12-25 19:36:02.188  2463  2463 V SidecarFragment: SidecarFragment.setState(): Sidecar Class: com.android.settings.network.telephony.DeleteEuiccSubscriptionSidecar, State: State.RUNNING, Substate.UNUSED
12-25 19:36:02.189  2463  2463 I DeleteEuiccSubscriptionSidecar: Deleting subscription ID: 3
12-25 19:36:02.192  2463  2539 D OpenGLRenderer: endAllActiveAnimators on 0x70de910f50 (RippleDrawable) with handle 0x6fee8d2fd0
12-25 19:36:02.193  2457  2941 D TelephonyProvider: Using old permission behavior for telephony provider compat
12-25 19:36:02.193  1770  3866 W InputManager-JNI: Input channel object 'd46f1bc com.android.settings/com.android.settings.network.telephony.DeleteEuiccSubscriptionDialogActivity (client)' was disposed without first being removed with the input manager!
12-25 19:36:02.210  2662  2662 I EuiccGoogle: [2] EuiccServiceImpl.onCreate: onCreate DSDS mode: simCardState is 0
12-25 19:36:02.217  2662 10194 I EuiccGoogle: [67] EuiccServiceImpl.onDeleteSubscription: onDeleteSubscription: delete slotId = -1, iccId = 89330120209449770550
12-25 19:36:02.218  2662 10194 I EuiccGoogle: [67] EuiccServiceImpl.lockWriteLock: Successfully grant SIM state write lock
12-25 19:36:02.218  2662 10194 I EuiccGoogle: [67] EuiccServiceImpl.ensureSlotIsEuiccAndActive: ensureSlotIsEuiccAndActive: slotId = -1, forceDeactivateSim = true
12-25 19:36:02.221  2662 10194 I EuiccGoogle: [67] EuiccServiceImpl.ensureSlotIsEuiccAndActive: Passed in slotId=-1; euiccIsActive=false; targetSlotIsRemovable=false; forceDeactivateSim=true.
12-25 19:36:02.221  2662 10194 E EuiccGoogle: [67] EuiccServiceImpl.ensureSlotIsEuiccAndActive: Multiple active slots supported, but slotId -1 is not active
12-25 19:36:02.221  2662 10194 E EuiccGoogle: com.google.android.flib.log.WhatATerribleException
12-25 19:36:02.221  2662 10194 E EuiccGoogle:   at com.google.android.flib.log.Blog.wtf(Blog.java:157)
12-25 19:36:02.221  2662 10194 E EuiccGoogle:   at com.google.android.euicc.logging.EuiccGoogleLog.wtf(EuiccGoogleLog.java:20)
12-25 19:36:02.221  2662 10194 E EuiccGoogle:   at com.android.euicc.service.EuiccServiceImpl.ensureSlotIsEuiccAndActive(EuiccServiceImpl.java:3747)
12-25 19:36:02.221  2662 10194 E EuiccGoogle:   at com.android.euicc.service.EuiccServiceImpl.onDeleteSubscriptionInternal(EuiccServiceImpl.java:1676)
12-25 19:36:02.221  2662 10194 E EuiccGoogle:   at com.android.euicc.service.EuiccServiceImpl.onDeleteSubscription(EuiccServiceImpl.java:1640)
12-25 19:36:02.221  2662 10194 E EuiccGoogle:   at android.service.euicc.EuiccService$IEuiccServiceWrapper$9.run(EuiccService.java:815)
12-25 19:36:02.221  2662 10194 E EuiccGoogle:   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
12-25 19:36:02.221  2662 10194 E EuiccGoogle:   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
12-25 19:36:02.221  2662 10194 E EuiccGoogle:   at java.lang.Thread.run(Thread.java:920)
12-25 19:36:02.229  1770 10195 I DropBoxManagerService: add tag=system_app_wtf isTagEnabled=true flags=0x2
12-25 19:36:02.229  2662 10194 I EuiccGoogle: [67] EuiccServiceImpl.onDeleteSubscriptionInternal: onDeleteSubscriptionInternal: slotId = -1, iccId = 89330120209449770550, ensureSlotIsEuiccAndActive = Pair{131083 false}.
12-25 19:36:02.229  1770 10195 W DropBoxManagerService: Dropping: system_app_wtf (1306 > 0 bytes)
12-25 19:36:02.229  2662 10194 I EuiccGoogle: [67] EuiccServiceImpl.onDeleteSubscriptionInternal: onDeleteSubscriptionInternal: slotCheckResult = 131083
12-25 19:36:02.230  2662 10194 I EuiccGoogle: [67] EuiccServiceImpl.unlockWriteLock: SIM state write lock is locked by the current thread. Unlock it.
12-25 19:36:02.230  2662 10194 I EuiccGoogle: [67] EuiccErrorMapper.mapErrorCode: Mapping for error code: 131083
12-25 19:36:02.231  2662 10194 I EuiccGoogle: [67] EuiccErrorMapper.mapErrorCode: Mapping error code: 131083 to: 33554432
12-25 19:36:02.231  2662 10194 I EuiccGoogle: [67] EuiccServiceImpl.onDeleteSubscription: onDeleteSubscription errorCode: 131083, mapped to: 33554432
12-25 19:36:02.242  2463  2463 I EuiccOperationSidecar: Result code : 2; detailed code : 0
12-25 19:36:02.242  2463  2463 E DeleteEuiccSubscriptionDialogActivity: Failed to delete the subscription.
12-25 19:36:02.242  2463  2463 V SidecarFragment: SidecarFragment.setState(): Sidecar Class: com.android.settings.network.telephony.DeleteEuiccSubscriptionSidecar, State: State.INIT, Substate.UNUSED
12-25 19:36:02.242  2463  2463 V SidecarFragment: SidecarFragment.setState(): Sidecar Class: com.android.settings.network.telephony.DeleteEuiccSubscriptionSidecar, State: State.INIT, Substate.UNUSED
12-25 19:36:02.246  3829  3829 I GoogleInputMethodService: GoogleInputMethodService.onFinishInput():3301
12-25 19:36:02.246  3829  3829 I GoogleInputMethodService: GoogleInputMethodService.onStartInput():1979
12-25 19:36:02.247  3829  3829 I DeviceUnlockedTag: DeviceUnlockedTag.notifyDeviceLockStatusChanged():79 Notify device unlocked.
12-25 19:36:02.909  2463  2539 D OpenGLRenderer: endAllActiveAnimators on 0x70de8e37e0 (RippleDrawable) with handle 0x6fee8db040
12-25 19:36:02.910  1770  3246 W InputManager-JNI: Input channel object '7633076 com.android.settings/com.android.settings.network.telephony.DeleteEuiccSubscriptionDialogActivity (client)' was disposed without first being removed with the input manager!
12-25 19:36:02.950  2463  2463 D NetworkSettings: onResume() subId=3
12-25 19:36:02.974  2457  2941 D TelephonyProvider: Using old permission behavior for telephony provider compat
12-25 19:36:02.999  2457  2941 D TelephonyProvider: Using old permission behavior for telephony provider compat
12-25 19:36:03.012  3829  3829 I GoogleInputMethodService: GoogleInputMethodService.onFinishInput():3301
12-25 19:36:03.013  3829  3829 I GoogleInputMethodService: GoogleInputMethodService.onStartInput():1979
12-25 19:36:03.013  3829  3829 I DeviceUnlockedTag: DeviceUnlockedTag.notifyDeviceLockStatusChanged():79 Notify device unlocked.
12-25 19:36:03.049  1770  3246 W InputManager-JNI: Input channel object 'a5961ab com.android.settings/com.android.settings.network.telephony.DeleteEuiccSubscriptionDialogActivity (client)' was disposed without first being removed with the input manager!
12-25 19:36:03.057  1770  3246 W InputManager-JNI: Input channel object '15c0fa7 com.android.settings/com.android.settings.network.telephony.DeleteEuiccSubscriptionDialogActivity (client)' was disposed without first being removed with the input manager!
12-25 19:36:03.928  1770  2180 D ConnectivityService: NetReassign [no changes]
</code>```

Sorry for the log length, I can't really find where the problem is. From what I understand, it has to do with eUICC. I would bet the old carrier has messed up with permissions, but I can't be sure. Hopefully, someone may be able to identify the problem.


问:
How to remove uninstalled app?
I know the title might sound strange, but it does happen on my phone (Samsung). As you can see here, these apps can't be viewed (opened), uninstalled, nor hidden because they don't exist and never be installed on my phone.

Initially, those apps came from a system app called Configuration update. It's been uninstalled by LADB, but why those annoying apps still exist (not really exist, but they just appear like that)?

My best thought to solve this problem is installing those apps and then hide it. But I will never install those apps. This is my least possibility that I could think of. Do you have better idea?

Thanks in advance!

P.s. I had never installed the apps in the first place. Before I uninstalled the Configuration update, there were logo of each app (such as bird for twitter, note for tiktok, etc. not those identical android logo) but the apps still gray and when they've been uninstalled, the apps are still gray like that.

Title: How to remove uninstalled app?


问:
Is there a way to force the second SIM to 4G?
My phone is Samsung M12, I want to know if I can switch the SIM 2 into 4G only. I know I can easily download 4G-only apps from Play store, but they work for the first SIM only. I need to force my second SIM to 4G only. Is this possible?</p>


问:
Could I use 2 step verification on my BlueStacks?
When I was checking my google account for some stuff, I noticed that google recognized my virtual BlueStacks emulator as an connected device

So I was thinking if I could use my BlueStacks to actually use 2 step verification