Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
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Update vivo V21 to latest Android version
How can I update my old Android version to the latest Android version, in vivo V21, without rooting and any other process, and what is the official process?
How can I update my old Android version to the latest Android version, in vivo V21, without rooting and any other process, and what is the official process?
Rajput Anirudh
(1 rep)
Aug 9, 2024, 09:20 AM
• Last activity: Apr 14, 2025, 09:53 PM
0
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1
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699
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Samsung Galaxy Tab S (retail mode) bricked
I have a problem with my Samsung Galaxy Tab S SM-T700 (WiFi) that I couldn't solve even after a lot of googling. - Main Problem: It won't boot after I did some software updates (stuck on the Samsung logo) - Complications: Retail mode (MDM does not allow factory reset) The data on the device is not i...
I have a problem with my Samsung Galaxy Tab S SM-T700 (WiFi) that I couldn't solve even after a lot of googling.
- Main Problem: It won't boot after I did some software updates (stuck on the Samsung logo)
- Complications: Retail mode (MDM does not allow factory reset)
The data on the device is not important, it would be no problem to lose it if I could somehow do a factory reset.
I tried re-flashing with the stock ROM, but it still won't boot and still is in retail mode (actually, it "half-booted" once immediately after the flash, the OS started just to tell me it's not working and "has been quit").
Any ideas? Is it actually possible that there is no way to revive it?
Andreas
(1 rep)
Apr 11, 2017, 11:04 AM
• Last activity: Mar 8, 2025, 08:04 AM
1
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0
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50
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Does block verification for OTA updates for Magisk apply to LineageOS?
In the Ota [Upgrade Guide from Magisk][1], it says: > NOTE: In order to apply OTAs, you HAVE to make sure you haven’t modified and read-only partitions yourself (such as /system or /vendor) in any way. Even remounting the partition to rw will tamper block verification!! The guide does not elaborate...
In the Ota Upgrade Guide from Magisk , it says:
> NOTE: In order to apply OTAs, you HAVE to make sure you haven’t modified and read-only partitions yourself (such as /system or /vendor) in any way. Even remounting the partition to rw will tamper block verification!!
The guide does not elaborate on this further. It sounds like this is the case for stock ROMs, but it does not say. I use LineageOS, which is an A/B partition scheme.
Kamil
(39 rep)
Dec 11, 2024, 02:53 PM
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0
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77
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Problems with unlocking the phone after a standard software update
Recently, I updated my Infinix Hot 20i, and I encountered the following issue. The phone took a long time to update, and upon rebooting, it prompted me to enter the graphical key on the unlock screen. I have a very simple pattern lock that I have not forgotten. However, when I enter the correct patt...
Recently, I updated my Infinix Hot 20i, and I encountered the following issue. The phone took a long time to update, and upon rebooting, it prompted me to enter the graphical key on the unlock screen.
I have a very simple pattern lock that I have not forgotten. However, when I enter the correct pattern, the phone thinks for about five seconds and then says that the pattern is incorrect. If I enter an incorrect pattern right away, it immediately shows an error.
Could you advise me on how to resolve this situation without losing my data, as I do not have a backup?
Valdemar
(1 rep)
Dec 4, 2024, 07:03 AM
• Last activity: Dec 7, 2024, 10:01 AM
2
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1
answers
1465
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How do I upgrade an Android phone's version from my pc
I have Android 7.0 and I'm trying to upgrade it to Android 8 or 9 because some apps require that as the minimum version. The problem now is I feel like my phone has stopped receiving updates from the manufacturer so I want to know if it is possible to manually upgrade it through ADB (or something) w...
I have Android 7.0 and I'm trying to upgrade it to Android 8 or 9 because some apps require that as the minimum version.
The problem now is I feel like my phone has stopped receiving updates from the manufacturer so I want to know if it is possible to manually upgrade it through ADB (or something) with my laptop.
When I check the phone's software updater it says there are no upgrades and it's the latest version but we both know that isn't true, so I'm trying to forcefully upgrade it.
My phone is T-Mobile and the model is 5049W
**Edit:** It doesn't even seem like there's a custom ROM/recovery for this particular model of T-Mobile.
drvnprgrmr
(23 rep)
Oct 12, 2022, 10:25 AM
• Last activity: Sep 12, 2024, 11:57 AM
0
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1
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176
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How to Retrieve Recovery Logs on Samsung A15 4G After Error Message?
After a recent Google play system update, I started getting the following message on boot: `Your phone couldn't start normally.` Despite this, my Samsung A15 4G boots up normally afterward. I want to retrieve the logs from that screen to investigate the issue further. Does anyone know how I can acce...
After a recent Google play system update, I started getting the following message on boot:
Your phone couldn't start normally.
Despite this, my Samsung A15 4G boots up normally afterward. I want to retrieve the logs from that screen to investigate the issue further.
Does anyone know how I can access these logs or what steps I should take to troubleshoot this?
Thanks!
poqdavid
(1433 rep)
Sep 5, 2024, 06:54 PM
• Last activity: Sep 5, 2024, 10:45 PM
2
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0
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1224
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How can I get rid of the "Restart now to finish the update" popup?
I have a Pixel 2 XL that I MUST keep on Android 10 for various reasons. *(Yes, I am aware of the implications of doing this. This is a device that I use for development tasks, I don't go to random websites on it, I don't install unknown apps, I never use it away from my trusted home WiFi network, et...
I have a Pixel 2 XL that I MUST keep on Android 10 for various reasons. *(Yes, I am aware of the implications of doing this. This is a device that I use for development tasks, I don't go to random websites on it, I don't install unknown apps, I never use it away from my trusted home WiFi network, etc.)* However Google seems hellbent on making me upgrade. Every few days I get a popup message (shown below) asking me to "restart now to finish the update." **I get this popup even though I have "automatic system updates" turned OFF in Developer Settings, and even though I have Google Play Services notifications turned OFF.** Is there any way to stop this message from appearing?
Donald Burr
(121 rep)
Dec 14, 2020, 07:21 AM
• Last activity: Jun 19, 2024, 08:45 PM
4
votes
0
answers
4696
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Is it possible to run a Firmware Over The Air update server?
Is it possible to run a Firmware Over The Air update server? and is it possible to configure stock devices to point at it?
Is it possible to run a Firmware Over The Air update server?
and is it possible to configure stock devices to point at it?
Jayen
(141 rep)
Sep 3, 2012, 11:43 AM
• Last activity: Jun 11, 2024, 11:46 PM
2
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0
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245
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Need Help with CSC for Galaxy A15 4G
I'm currently using a **Galaxy A15 4G** and I've run into a bit of a snag trying to figure out the correct **CSC (Country Specific Code)**. When I navigate to the `Software Information` section under `Service provider software version`, I see the following details: ```plaintext Service provider soft...
I'm currently using a **Galaxy A15 4G** and I've run into a bit of a snag trying to figure out the correct **CSC (Country Specific Code)**.
When I navigate to the
Software Information section under Service provider software version, I see the following details:
Service provider software version
SAOMC_SM-A155F_OJM_MID_14_0004
MID/MID,MID/XSGhttps://doc.samsungmobile.com/SM-A155F/MID/doc.html .
To add to the confusion, when I used samfw.com to check the CSC, it indicated that the CSC was TUR instead of MID.
I'm a bit lost here. Could anyone please clarify which one is the correct CSC? Any help would be greatly appreciated.
Thank you in advance!
poqdavid
(1433 rep)
May 22, 2024, 11:36 PM
1
votes
1
answers
2774
views
Is it possible to upgrade Pixel 4a to Android 14?
My dayjob wants me to upgrade for security reasons. The System Update portion of the settings app isn't offering it to me, but web searches seem to indicate that it's an option. Does anybody know for sure, and if so, how?
My dayjob wants me to upgrade for security reasons. The System Update portion of the settings app isn't offering it to me, but web searches seem to indicate that it's an option.
Does anybody know for sure, and if so, how?
Edward Falk
(113 rep)
May 2, 2024, 11:29 PM
• Last activity: May 3, 2024, 05:25 AM
1
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1
answers
462
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Is there any persistent root method for LineageOS 20?
The gist of it is that I use LineageOS for the Samsung S9 and I use Magisk. Every time the system updates the root is removed, so my question is - does anyone know of any persistent way to get a persistent root? Apparently `AddonSU.zip` has been dropped and from my surface research, the answers are...
The gist of it is that I use LineageOS for the Samsung S9 and I use Magisk. Every time the system updates the root is removed, so my question is - does anyone know of any persistent way to get a persistent root?
Apparently
AddonSU.zip has been dropped and from my surface research, the answers are very underwhelming. I mean re-adding Magisk is not the end of the world but I really would like it if it were to get stuck around every time the OS updates...
BTW, I would like the long answer of why it happens. I have the vaguest idea that every update overwrites the boot partition or image where Magisk injects itself during boot. But I would like a somewhat in-depth explanation of how Magisk does its thing and why the updates screw it up.
Alejandro Alzate Sánchez
(13 rep)
Apr 26, 2024, 02:17 AM
• Last activity: Apr 28, 2024, 03:28 AM
2
votes
1
answers
171
views
Samsung asks for software update with weird random version
Today, I suddenly received this update for my Samsung Galaxy Prime Kit Kat 4.1 and it tells me to update to a weird random version which I searched on Google and received NO results (even when typing the 6th letter of the version). I hope this is not a glitch or someone trying to hack my phone. > **...
Today, I suddenly received this update for my Samsung Galaxy Prime Kit Kat 4.1 and it tells me to update to a weird random version which I searched on Google and received NO results (even when typing the 6th letter of the version). I hope this is not a glitch or someone trying to hack my phone.
> **Update details**
>
> Size : 124.17 MB
> Version G360GDXU1BOJ3/G360GOLB1BOJ1/G360GDVU1BOJ3
>
> 
ministic2001
(133 rep)
Nov 26, 2015, 12:18 AM
• Last activity: Feb 18, 2024, 01:07 PM
2
votes
1
answers
4719
views
How can I see the history log of system updates?
I need to know the history log of system updates (ROM / OTA updates). Is there any file on the device that contains this information?
I need to know the history log of system updates (ROM / OTA updates). Is there any file on the device that contains this information?
MML Professional
(123 rep)
Jul 21, 2020, 10:30 PM
• Last activity: Nov 12, 2023, 10:08 AM
1
votes
1
answers
1590
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Android rk322x_box TV box on Andorid 6 tries to occasionally update and fails
I have an Android TV Box (MXQ-4K) Android/rk322x_box/. This device is on Android 6 and I bought it online; it came pre-rooted. It worked fine and then I stopped using it. Now after few years, I have started using it again. It worked fine for few days, but now after few months, during YouTube video (...
I have an Android TV Box (MXQ-4K) Android/rk322x_box/. This device is on Android 6 and I bought it online; it came pre-rooted. It worked fine and then I stopped using it.
Now after few years, I have started using it again. It worked fine for few days, but now after few months, during YouTube video (which I use it mostly for) it just randomly tries to update without any cancel button, turns off with the DRIOD icon tries to update then the recovery screen appears telling, update aborted, turn off the device.
How can I fix this? Or at least simply disable the auto system update?
Adnan Nazir
(111 rep)
Nov 5, 2023, 07:41 AM
• Last activity: Nov 6, 2023, 02:56 AM
0
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0
answers
638
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Cannot update Android version on my Oukitel RT3 after unrooting it
It's been a while since I've rooted my Oukitel RT3. After seeing that an update was available, I unrooted it so I could install it without any problem. The only problem is that it says this: > ### Couldn't update > Installation problem > > **V07_20230215 to V10_20230711** > > **Update size: 43.91 MB...
It's been a while since I've rooted my Oukitel RT3. After seeing that an update was available, I unrooted it so I could install it without any problem. The only problem is that it says this:
> ### Couldn't update
> Installation problem
>
> **V07_20230215 to V10_20230711**
>
> **Update size: 43.91 MB**
I think it's because I swapped the Magisk patched boot image with the system one, but the version of the ROM on the Oukitel website was outdated. So, my device shows that the ROM version is V07_20230215 (the actual ROM with the boot image needed, but can't find it on the internet) but on the website, the latest available is V05_20221117 (which is the one I took the boot image from), and the one I have to update to is V10_20230711.
Maybe I followed the wrong steps to unroot it, can anyone help?
I think it's because I swapped the Magisk patched boot image with the system one, but the version of the ROM on the Oukitel website was outdated. So, my device shows that the ROM version is V07_20230215 (the actual ROM with the boot image needed, but can't find it on the internet) but on the website, the latest available is V05_20221117 (which is the one I took the boot image from), and the one I have to update to is V10_20230711.
Maybe I followed the wrong steps to unroot it, can anyone help?
Giocraft
(1 rep)
Jul 30, 2023, 05:06 PM
• Last activity: Aug 26, 2023, 03:51 PM
1
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3
answers
12517
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Apps crashing after updating Lenovo A2010 to Android 5.1 Lollipop
I updated my Lenovo A2010-a to the latest version (Android 5.1): I just clicked on a message that says "You have a new update. Update has downloaded and can be installed" then it opened a new window. On that window, I click on the button "install", then the phone rebooted and was updating (showing a...
I updated my Lenovo A2010-a to the latest version (Android 5.1): I just clicked on a message that says "You have a new update. Update has downloaded and can be installed" then it opened a new window. On that window, I click on the button "install", then the phone rebooted and was updating (showing a green Android icon). The battery was in normal condition (not low). After that, the phone booted normally.
After updating, I have an error on all applications installed on my phone. Error for all applications in one separate window, one after one. With text like this (translated from Russian to English)
> Error in application "Google Keyboard"
What I can do to resolve that problem?
andrejs82
(21 rep)
Jul 27, 2016, 09:40 AM
• Last activity: Aug 17, 2023, 08:08 PM
2
votes
0
answers
99
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Does going directly from QPR Beta-> major Android Beta (without going to stable in between) would force a wipe in between or not?
Others have asked elsewhere, so I'm looking for answers for them. Does anyone recollect from a year ago what the experience was if you're either on or opted into the Google Pixel Android 12 QPR program, and you opted into the Android 13 Beta 1, did you get an OTA directly from QPR Beta to 13 Beta 1?...
Others have asked elsewhere, so I'm looking for answers for them.
Does anyone recollect from a year ago what the experience was if you're either on or opted into the Google Pixel Android 12 QPR program, and you opted into the Android 13 Beta 1, did you get an OTA directly from QPR Beta to 13 Beta 1?
For now, I've been advising users to opt out of the QPR2 Beta, but don't take the OTA until the Stable QPR2 one comes for their device and then once on that, opt into the Android 14 Beta 1 when it's available, just to be safe.
I'm aware the Android 13 QPR2 has gone Stable for all appropriate Pixel phones, except for all the Pixel 6 series, which I've heard will arrive on March 20, but that's third-hand information.
I don't know if a QPR Beta -> major Android Beta (without going to stable in between) would force a wipe in between or not. We all know it hopefully "shouldn't", but I'm looking for someone who knows for sure.
Thanks!
roirraW 'edor' ehT
(21 rep)
Mar 14, 2023, 01:09 PM
4
votes
2
answers
7402
views
File "has unexpected contents" error when sideloading Android 5.0 OTA zip file
I have a Nexus 7 (2013) (wifi) and am trying to update the software to Android 5.0. When I try to sideload, I get this error: Installing update... mount: failed to mount /dev/block/platform/msm.sdcc.1/by-name/system at /system: Invalid argument Verifying current system... "/system/app/Drive.apk" has...
I have a Nexus 7 (2013) (wifi) and am trying to update the software to Android 5.0. When I try to sideload, I get this error:
Installing update...
mount: failed to mount /dev/block/platform/msm.sdcc.1/by-name/system at /system: Invalid argument
Verifying current system...
"/system/app/Drive.apk" has unexpected contents.
E: Error in /tmp/update.zip
(Status 7)
Installation aborted.
How I did it:
I placed the OTA file in
sdk/platform-tools folder. Then I opened up a command prompt and typed in adb sideload 5a0f7a47588c268c239e58cf568823c6637c5af1.signed-razor-LRX21P-from-KTU84P.5a0f7a47.zip and I got that error.
What did I do wrong?
TJ Samojedny
(61 rep)
Dec 3, 2014, 11:43 AM
• Last activity: Mar 5, 2023, 03:48 AM
1
votes
0
answers
227
views
Disabling automatic Android updates on an unrooted Samsung S22?
Is there any way to disable automatic Android updates (for the OS, not apps) on an unrooted Samsung S22 running Android 13? I bought it through T-Mobile, and it's really driving me insane. The phone's overall performance is fine, but T-Mobile (not Samsung, the updates are explicitly T-Mobile-branded...
Is there any way to disable automatic Android updates (for the OS, not apps) on an unrooted Samsung S22 running Android 13?
I bought it through T-Mobile, and it's really driving me insane. The phone's overall performance is fine, but T-Mobile (not Samsung, the updates are explicitly T-Mobile-branded) forces Microsoft-eske automatic OS updates on me several times a week, which disables the phone for hours until I manually unlock it and it "finishes installing updates".
I tried some obvious solutions suggested on various blogs, like disabling
Settings->Software update->Auto download over Wi-fi, but these options are either removed (thanks T-Mobile) or have no effect.
I use this phone for work as well as my personal alarm and for meeting notifications. Due to these updates, I've overslept when my alarms and meeting reminders don't start. I refuse to accept that a $900 phone has to be less capable than a $5 alarm clock.
Cerin
(609 rep)
Jan 10, 2023, 10:44 PM
0
votes
1
answers
398
views
"Install update to keep device running smoothly" dialog comes but when try to install, it stuck at installing update
On my Android phone, I'm getting the below dialog but when I try to install an update, it is stuck. ![][1] Please note that I have 20.83GB of free space in the Internal storage. I tried when the battery is 100% charged and also tried on "Mobile Data" as well as "WiFi" connection. Anything else I can...
On my Android phone, I'm getting the below dialog but when I try to install an update, it is stuck.
Please note that I have 20.83GB of free space in the Internal storage. I tried when the battery is 100% charged and also tried on "Mobile Data" as well as "WiFi" connection.
Anything else I can try? Also, I don't want to Factory Reset the phone.
More info about the device:
- LAVA Z6
- Android version 11
- Build number: LAVA_LMX06_SW_V12_HW_V1.0_20220316
Please note that I have 20.83GB of free space in the Internal storage. I tried when the battery is 100% charged and also tried on "Mobile Data" as well as "WiFi" connection.
Anything else I can try? Also, I don't want to Factory Reset the phone.
More info about the device:
- LAVA Z6
- Android version 11
- Build number: LAVA_LMX06_SW_V12_HW_V1.0_20220316
Ganpat
(121 rep)
Sep 15, 2022, 02:58 PM
• Last activity: Nov 14, 2022, 06:26 PM
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