Develop Bugs

Troubleshooting Guide & FAQ: Updating stock ROM

Hi guys,
I saw many threads popping up in the Q & A section about applying updates on a stock rooted ROM. So i though it would be helpul if i shared my experiences and also clear some misconceptions.
This Thread mainly applies for those looking to upgrade from 2.09 to the recent 2.22/2.24 ! It may or may not work for any previous updates.
Q) My phone is rooted, Bootloader unlocked and CWM installed. How do i update to 2.22?
Ans.)
1) Backup your root using Voodoo OTA Rootkeeper.
2) Flash the stock recovery for your area using the All in one kit (or you can use the command line if you're familiar).
3) Download the update, click install, sit back and enjoy !
ITS that simple.
Q) What do i do if i cant find stock recovery for my latest version?
Ans) The recovery does not seem to have changed from version 1.56 to 2.09. You can flash the older recovery provided, you've checked your region is correct.
Q) Do i need to re-lock my bootloader for the update to take place?
Ans) NO! You don't need to re-lock anything. It updates perfectly fine with unlocked bootloader. Just flash Stock recovery !
Q) Do i lose my apps/settings/cache?
Ans) Since its an OTA from HTC, you retain everyhting!
Q) Will i lose my root if i update?
Ans) You will! Thats exactly why you're advised to backup your root.
Q) My updates fails with a red triangle and exclamation mark, what did i do wrong?
Ans) You need to understand that during the update, several stock apps are patched. If any of these STOCK APPS ( the ones that came with ya new phone) are uninstalled/frozen/meddled with, an error will pop up.
Q) How do i identify the cause of the error?
Ans) When the red triangle pops up, press the Volume UP, Volume DOWN and LOCK keys at the same time for a second and release. You should see the cause of your error. Try to restore/unfreeze the app thats causing the error. If that is not possible, try posting your error here to see if experts here can help.
All the stock recoveries can be found on this forum. If however u've a doubt, i'd be happy to help.
This guide is not perfect and may contain errors ( i've tried to make it complete to the best of my knowledge). I'm open to suggestions and questions

shubhamsizzles said:
Hi guys,
I saw many threads popping up in the Q & A section about applying updates on a stock rooted ROM. So i though it would be helpul if i shared my experiences and also clear some misconceptions.
This Thread mainly applies for those looking to upgrade from 2.09 to the recent 2.22/2.24 ! It may or may not work for any previous updates.
Q) My phone is rooted, Bootloader unlocked and CWM installed. How do i update to 2.22?
Ans.)
1) Backup your root using Voodoo OTA Rootkeeper.
2) Flash the stock recovery for your area using the All in one kit (or you can use the command line if you're familiar).
3) Download the update, click install, sit back and enjoy !
ITS that simple.
Q) What do i do if i cant find stock recovery for my latest version?
Ans) The recovery does not seem to have changed from version 1.56 to 2.09. You can flash the older recovery provided, you've checked your region is correct.
Q) Do i need to re-lock my bootloader for the update to take place?
Ans) NO! You don't need to re-lock anything. It updates perfectly fine with unlocked bootloader. Just flash Stock recovery !
Q) Do i lose my apps/settings/cache?
Ans) Since its an OTA from HTC, you retain everyhting!
Q) Will i lose my root if i update?
Ans) You will! Thats exactly why you're advised to backup your root.
Q) My updates fails with a red triangle and exclamation mark, what did i do wrong?
Ans) You need to understand that during the update, several stock apps are patched. If any of these STOCK APPS ( the ones that came with ya new phone) are uninstalled/frozen/meddled with, an error will pop up.
Q) How do i identify the cause of the error?
Ans) When the red triangle pops up, press the Volume UP, Volume DOWN and LOCK keys at the same time for a second and release. You should see the cause of your error. Try to restore/unfreeze the app thats causing the error. If that is not possible, try posting your error here to see if experts here can help.
All the stock recoveries can be found on this forum. If however u've a doubt, i'd be happy to help.
This guide is not perfect and may contain errors ( i've tried to make it complete to the best of my knowledge). I'm open to suggestions and questions
Click to expand...
Click to collapse
Hi, thanks for the super explanations - last two really helped me - at least I found the reason why my phone does not want to Updates.
I send thanks to your instructions displayed mistake - I phone from T-Mobile Czech and the application of course I deleted it - it is useless.
Do you know if this can be downloaded somewhere, possibly where I got all this ROM mentioned in the error? I deleted more applications, so it probably will want to install these
I watched a lot of the internet, but I found none.
Sorry for my English ...

Well, if you made a backup if the current Rom/apps, then just extract and install the apps. Or else, I think you can extract the app from ruu if your version. You'll have to do it for each of the apps you uninstalled. That's gonna be a hell of a job, if u ask me.
I think its better you stick to the current software, or of you really wanna update, reset your phone via ruu. And then update.
Sent from my HTC One V using xda app-developers app

Nexus 7 4.3 JWR66N OTA update error

My NEXUS 7 (2013) is running on Android 4.3 with the build version JWR66N
The Problem is that i get an OTA update notification for Android 4,3 System Update which is of appx (56 MB).
When i try to install it the Tab reboots and the update fails and it restarts again with the same build version ie. JWR66N.
Again after 2-3 days i get the same notification for that 4.3 System update and again it fails. PLEASE HELP !!!
How will i update to android 4.4 ???
I dont want to sideload or root.... Please suggest a normal fix !!!

Have you done any modifications to your n7 usually that borks any ota update

church said:
Have you done any modifications to your n7 usually that borks any ota update
Click to expand...
Click to collapse
No... I have not done any change.... After booting for the very first time i got an update which worked fine.... Then this OTA update message keeps coming but it never gets installed as it gives an error

red_ferrari007 said:
My NEXUS 7 (2013) is running on Android 4.3 with the build version JWR66N
The Problem is that i get an OTA update notification for Android 4,3 System Update which is of appx (56 MB).
When i try to install it the Tab reboots and the update fails and it restarts again with the same build version ie. JWR66N.
Again after 2-3 days i get the same notification for that 4.3 System update and again it fails. PLEASE HELP !!!
How will i update to android 4.4 ???
I dont want to sideload or root.... Please suggest a normal fix !!!
Click to expand...
Click to collapse
You likely have the problem that some system files got corrupted because of bad EMMC.
When the update fails and you have the fallen android, press/hold Power, then press/release VolUp, then release Power.
This will show you the error and can confirm or refute this diagnosis.
If you want to get past it in the more efficient manner, you'll probably need to unlock the bootloader, then flash one of the factory images.

I will see that when the OTA notification comes again..... But how can I solve the problem.... is anyone else facing it ?
Will I get an Android 4.4 update ?
Sent from my Nexus 7 using xda app-developers app

red_ferrari007 said:
I will see that when the OTA notification comes again..... But how can I solve the problem.... is anyone else facing it ?
Will I get an Android 4.4 update ?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
As I mentioned you'll probably need to flash a factory image to get around it, or you'll have to identify each file that is corrupted and replace it.
If you don't resolve the problem you won't get the 4.4 update automatically, but you can manually install the 4.4 factory image.

sfhub said:
As I mentioned you'll probably need to flash a factory image to get around it, or you'll have to identify each file that is corrupted and replace it.
If you don't resolve the problem you won't get the 4.4 update automatically, but you can manually install the 4.4 factory image.
Click to expand...
Click to collapse
see i found this link which apparently is talking about the same problem and a fix
http://forum.xda-developers.com/showthread.php?t=2380258
but i dont know anything about rooting and flashing.... Thats why i am afraid to do anything

red_ferrari007 said:
see i found this link which apparently is talking about the same problem and a fix
http://forum.xda-developers.com/showthread.php?t=2380258
but i dont know anything about rooting and flashing.... Thats why i am afraid to do anything
Click to expand...
Click to collapse
I and the op posted extensively in that thread. All the solutions there require unlocking your bootloader. If you are going to do that you might as well just flash the factory image.

Ya see that's what the problem is I don't know what's unlocking boot loader and flashing stock ram etc
Sent from my Nexus 7 using xda app-developers app

sfhub said:
I and the op posted extensively in that thread. All the solutions there require unlocking your bootloader. If you are going to do that you might as well just flash the factory image.
Click to expand...
Click to collapse
So if i flash STOCK ROM of a next version would everything be fine ???
I found this video which shows the tutorial
Is it correct ?
http://www.youtube.com/watch?v=bsss9e71bKo&feature=youtube_gdata

red_ferrari007 said:
So if i flash STOCK ROM of a next version would everything be fine ???
I found this video which shows the tutorial
Is it correct ?
http://www.youtube.com/watch?v=bsss9e71bKo&feature=youtube_gdata
Click to expand...
Click to collapse
Person on the other thread mentioned they got a JWR66N->KRT16S OTA update.
Previously we had only seen JSS15R->KRT16S updates, which would mean you would need to get from JWR66N->JSS15R first. The JWR66N->JSS15R update would fail for you, but there is a chance a JWR66N->KRT16S update would work because more files are shipped whole and not as patches.
Regarding the youtube video, it should get your where you need to be. I would skip the relocking of your device though to keep future flexibility in case something like this happens again.
If you want to be on KRT16S(4.4), then just flash the KRT16S factory image. If you want to be on the latest 4.3 then flash JSS15R.
Keep in mind unlocking the bootloader will erase your use data (including your virtual sdcard) so backup anything important and move it off the tablet to your PC or the cloud.

GOT 4.4 UPDATE...Facing Problems
Today Morning I Finally Got Android 4.4 Update OTA. I installed it..... Installation went smooth...
The Tablet Workded fine for 5-6 Hours.... Now I am getting all types of touch screen issues...
1)Non Responsive
2)Ghost Touch
3)Lagging
Please Help

sfhub said:
Person on the other thread mentioned they got a JWR66N->KRT16S OTA update.
Previously we had only seen JSS15R->KRT16S updates, which would mean you would need to get from JWR66N->JSS15R first. The JWR66N->JSS15R update would fail for you, but there is a chance a JWR66N->KRT16S update would work because more files are shipped whole and not as patches.
Regarding the youtube video, it should get your where you need to be. I would skip the relocking of your device though to keep future flexibility in case something like this happens again.
If you want to be on KRT16S(4.4), then just flash the KRT16S factory image. If you want to be on the latest 4.3 then flash JSS15R.
Keep in mind unlocking the bootloader will erase your use data (including your virtual sdcard) so backup anything important and move it off the tablet to your PC or the cloud.
Click to expand...
Click to collapse
Hi, i was that guy on the other thread,i was wondering why i receive different size of ota of kit kat 253.1mb...others almost receiving 242.5 here on our forum of nexus 7.2 philippines wifi version,just wondring why different file size?
Sent from my Nexus 7 using xda premium

Touchsreen Dead
and2nckiko said:
Hi, i was that guy on the other thread,i was wondering why i receive different size of ota of kit kat 253.1mb...others almost receiving 242.5 here on our forum of nexus 7.2 philippines wifi version,just wondring why different file size?
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
SOMETHING HAS GONE HORRIBLY WRONG MAN !!!!
My Entire Screen is dead !!! I mean the TAB is Working but My screen is Not Responding !!!! I am Screwed !!!!!
How Can I chat with u contact u ?

[Q] Difficulties Upgrading to Lollipop

Hi, first of all I want to say that I am relatively new to android and therefore only have a basic understanding of everything. My desire EYE is currently on 4.4.4 rooted and have been having problems upgrading it to 5.0, I know I have to unroot and return to stock in order to be able to flash the stock recovery and be able to then flash lollipop on there. Problem is whenever I flash one of the stock 4.4.4's found on here superuser installer is still there (even when I tell to TWRP to not install it) and when I got to the bootloader is still says that the software is Modified so am still unable to flash the stock recovery and get lollipop.
Can anybody help shed some light on this problem and possibly help me fix it?

Hi there,
I have found I was able to update using the procedure written in this topic. Could you see if that helps you?

LaPaca said:
Hi there,
I have found I was able to update using the procedure written in this topic. Could you see if that helps you?
Click to expand...
Click to collapse
Thanks for your reply but have already tried this and when I tried booting into the recovery menu it gave me the red triangle because I have modified system partition, and all my efforts so far to change it to official have so far been unsuccessful
In fact tried it again and it worked this time, however when I try and download the update on my phone a message pop's up saying my phone can't be updated because the software is modified and not official HTC firmware

OTA Update? How shall I do it when rooted and unlocked?

So I have a Verizon Pixel XL that has been unlocked, TWRP alpha installed, and rooted....
How shall I update my build? Should I even update the build?
My goal is to have the latest update running on my system (manually flashing or OTA I don't care) with an unlocked rooted Pixel XL that can broadcast wifi natively.
I have everthing down except the update piece. Any advice?

You have TWRP and root? How is that working? I was reading that SuperSu needs an update to work with it. Also many people who have taken the OTA (or even flash full system image) are getting stuck in the bouncing balls boot loop. I would hold off on updating. No real major changes as of yet.

Twrp is working fine but I have nothing to flash to test...????

networx2002 said:
Twrp is working fine but I have nothing to flash to test...????
Click to expand...
Click to collapse
Yeah that is what I'm hinting at.... There is no updated ROM to work with TWRP yet that is updated to the latest Google Build

Root is working. I have twrp alpha 2. Root and elementalx 8 all installed. Although, im getting my daydream headset tomm. And when you install the app it tells you to check for updates. It says I have one. But if you look at the OTA updates NDE63 is the newest. Which im on. So I dn at this point. I guess i'll just roll with it for now. The dev that made purenexus that I ran on my nexus 6. Says hes working on it already and gets his on the 21st. So i'll just stick with what I have for now. I'm sure we'll see roms pretty soon

So, what is the proper/safe way to install an update without breaking anything? Losing root is not a concern since we can just reflash TWRP and SuperSU, but what's the process? Searching is not resulting in a guide that I can be 100% confident in.

I am rooted in my pixel XL. Can I accept OTA updates without losing root? If not, is there a developer/thread that has a safe update to flash? I am not on a custom ROM, I'm stock. Thanks

s1dest3pnate said:
So, what is the proper/safe way to install an update without breaking anything? Losing root is not a concern since we can just reflash TWRP and SuperSU, but what's the process? Searching is not resulting in a guide that I can be 100% confident in.
Click to expand...
Click to collapse
jreink01 said:
I am rooted in my pixel XL. Can I accept OTA updates without losing root? If not, is there a developer/thread that has a safe update to flash? I am not on a custom ROM, I'm stock. Thanks
Click to expand...
Click to collapse
Hit Google's Android OTA page, the file and directions are there to ADB sideload it. You will have to reroot and install TWRP if tou want that.

What i did was download the latest factory image from here from there I used this guide on post two section 8, installed the latest update, restored from cloud back up logged into all my apps (important if you use snapchat), reinstalled TWRP + Root + ElementalX and i was good to go, might seem like a little bit of work, but I've done it so many times I can get it done quickly now.

DeathSentinels said:
What i did was download the latest factory image from here from there I used this guide on post two section 8, installed the latest update, restored from cloud back up logged into all my apps (important if you use snapchat), reinstalled TWRP + Root + ElementalX and i was good to go, might seem like a little bit of work, but I've done it so many times I can get it done quickly now.
Click to expand...
Click to collapse
If you edit the flash-all.bat file and take out the -w near the end you wont flash user data. So you can skip restoring your cloud backup and apps. Backup just to be safe though.

TonikJDK said:
Hit Google's Android OTA page, the file and directions are there to ADB sideload it. You will have to reroot and install TWRP if tou want that.
Click to expand...
Click to collapse
Have a few more questions. If I do this procedure, is there the possibility that I won't be able to reroot with each update? If I do reroot and reinstall TWRP, is that like a factory reset where I will lose all my data? Back years ago when I would flash Roms, you could install a update without having to factory reset each time, Is this possible with the pixel with being stock? I would love to get the updates each month but don't want to do it if each time I have to reroot, reinstall TWRP and having all my data wiped. Thanks

jreink01 said:
Have a few more questions. If I do this procedure, is there the possibility that I won't be able to reroot with each update? If I do reroot and reinstall TWRP, is that like a factory reset where I will lose all my data? Back years ago when I would flash Roms, you could install a update without having to factory reset each time, Is this possible with the pixel with being stock? I would love to get the updates each month but don't want to do it if each time I have to reroot, reinstall TWRP and having all my data wiped. Thanks
Click to expand...
Click to collapse
No, it won't stop you from re-rooting and it will not factory reset your phone. So each month you will not lose your data but you will have to reinstall TWRP and root.

TonikJDK said:
No, it won't stop you from re-rooting and it will not factory reset your phone. So each month you will not lose your data but you will have to reinstall TWRP and root.
Click to expand...
Click to collapse
OK, thanks, that's good to know. When I lose root, will that mess with any of my apps that need root to work like titanium backup? Or will I just need to grant it user privileges again? I have never done this particular process before so I am a little weiry. Do you know of a step by step guide to do this? Sorry but I would feel more comfortable that way. Thanks for all you help and feedback, it's been years since I last went through the rooting, flashing process so, I guess I am being extra cautious. I have/am learning by the feedback you have given me.
Sent from my Pixel XL using Tapatalk

I am rooted with TWRP RC1
i never sideloaded an OTA before, alway applied factory images. Too lazy, but tired of all the rework.
i folllowed,
https://9to5google.com/2016/12/05/how-to-sideload-android-7-1-1-nmf26o-onto-the-pixel/
no data loss.
just had to use fastboot to reinstall TWRP and reflash SUPERSU.
All is well.

If I choose to side load it, do I root and install TWRP the same way I did when I first did this, with ADB on my windows PC? And side loading will work with a new operating system (when it comes out) along with the monthly security updates? I just checked and my latest security update is from January. If I updated March's update, would that automatically have the February one with it?
---------- Post added at 02:10 AM ---------- Previous post was at 02:02 AM ----------
TonikJDK said:
Hit Google's Android OTA page, the file and directions are there to ADB sideload it. You will have to reroot and install TWRP if tou want that.
Click to expand...
Click to collapse
I went to the Google page but all of the links are to 7.1.1 which I am currently on 7.1.2. Plus I am just looking for the security update that just dropped for March.

jreink01 said:
I went to the Google page but all of the links are to 7.1.1 which I am currently on 7.1.2. Plus I am just looking for the security update that just dropped for March.
Click to expand...
Click to collapse
Ok, didn't know that.
You are on a different path. You wait on Google for updates. There might be, there might not be. Certainly 7.1.2 will go live and we will all be on the same path and then 7.1.2 will get monthly updates, but when that is we don't know.
So for now you stay where you are, or you flash back to 7.1.1. we can do that without data loss if you want.

TonikJDK said:
Ok, didn't know that.
You are on a different path. You wait on Google for updates. There might be, there might not be. Certainly 7.1.2 will go live and we will all be on the same path and then 7.1.2 will get monthly updates, but when that is we don't know.
So for now you stay where you are, or you flash back to 7.1.1. we can do that without data loss if you want.
Click to expand...
Click to collapse
Yes, I am in the beta program, that's why I am on this version. So, I'm assuming the beta's don't get updates then? I have turned off automatic updates since I'm rooted. Would you recommend I turn that back on or no? If I'm correct, I can't take a OTA since I'm rooted so I was correct in turning off automatic updates then? I will probably stay on this version since the difference is improvement and bug fixes. So, when 7.1.2 rolls out to everyone, then I would assume that that version would show up on the Google page then?
Sent from my Pixel XL using Tapatalk

Flash stock software update through TWRP?

First of all this phone belongs to my dad. This means I haven't used it and I'm not familiar with many things about it.
The phone is running a stock ROM. It is not rooted, but it does have TWRP.
A software update prompt popped up trying to install "v20p-apr-03-2018" (why is an update for the G4 called v20 lol).
Telling it NOT to download it and NOT check for updates ever doesn't work. The update prompt comes back in 2 days tops. So **** you LG.
Since it's not rooted the easiest option seems to be to flash the update, however it just launches TWRP and does nothing. I found no way to actually download the update and keep it on the device so that I can manually tell TWRP to flash it.
So: Is there a way to download said update and flash it through TWRP? Or should I root it and delete the stupid update tool? I really don't want to flash a stock recovery.

ast00 said:
First of all this phone belongs to my dad. This means I haven't used it and I'm not familiar with many things about it.
The phone is running a stock ROM. It is not rooted, but it does have TWRP.
A software update prompt popped up trying to install "v20p-apr-03-2018" (why is an update for the G4 called v20 lol).
Telling it NOT to download it and NOT check for updates ever doesn't work. The update prompt comes back in 2 days tops. So **** you LG.
Since it's not rooted the easiest option seems to be to flash the update, however it just launches TWRP and does nothing. I found no way to actually download the update and keep it on the device so that I can manually tell TWRP to flash it.
So: Is there a way to download said update and flash it through TWRP? Or should I root it and delete the stupid update tool? I really don't want to flash a stock recovery.
Click to expand...
Click to collapse
Freeze or uninstall Software Update (LG proprietary, i.e., closed source, app) - may require root. That should stop the annoying requests. If you are able to upgrade you will lose TWRP and will have to re-flash TWRP again. You may want to consider that you do not have the latest Google security patches by not doing the update, putting your Dad's phone more at risk.

sdembiske said:
Freeze or uninstall Software Update (LG proprietary, i.e., closed source, app) - may require root. That should stop the annoying requests. If you are able to upgrade you will lose TWRP and will have to re-flash TWRP again. You may want to consider that you do not have the latest Google security patches by not doing the update, putting your Dad's phone more at risk.
Click to expand...
Click to collapse
It's not like LG updates security patches that often so it's not that big of a deal if I can't update it.
It's also fine if I lose TWRP during the process, I just want to avoid flashing stock recovery just for the sake of updating it.
And I still can't download the update and keep it. I don't know where it puts the update after downloading it. I couldn't find it in TWRP.

ast00 said:
It's not like LG updates security patches that often so it's not that big of a deal if I can't update it.
It's also fine if I lose TWRP during the process, I just want to avoid flashing stock recovery just for the sake of updating it.
And I still can't download the update and keep it. I don't know where it puts the update after downloading it. I couldn't find it in TWRP.
Click to expand...
Click to collapse
It helps if you include your phone model when looking for specific firmware updates.
If you're Dad's phone is an H815, there are some v20p downloads available here: https://lg-firmwares.com/lg-h815-firmwares/firmwares/
In order to flash in TWRP without losing TWRP, you would have to remove the stock recovery and create a flashable zip ...
Easiest is to simply freeze or remove the lg Software Update app as I indicated - the annoying update notification should then disappear ...
Note: XDA courtesy is to hit the Thanks button (bottom right of post), when members are trying to help and solve your issues. As a Senior Member you know this.

This update does not contain any security fixes it's just for the new European data protection law..
First thing you should try is:
Upgrade TWRP.
Do a full TWRP backup!
Test android update again.
Second thing:
Have you tried the LG bridge windows software to update?
If so and it fails there too you can find the update when you try to Flash it within the LG folder of your Windows PC afterwards use this KDZ file and lgup to flash it.
There is a chance that when using the internal updater that you can find the update file when in TWRP in /cache in a folder fota but it will likely be in a LG specific format so may don't help you much.
Third thing :
Disable the LG updater within TWRP (search for a howto)
Sent from my LG-H815 using XDA Labs