Database Info

[Q] official KitKat ota error

I tried to update to KitKat officially over the air but I get an error message , I had a custom recovery but flashed back to a version of the stock recovery,thing is I think its the recovery that's the problem,I don't know which version of the moto g its from (tesco,us,Brazil) I'm not sure so I'm on the unlocked UK ROM retail.gb.en.GB bought from phones 4u . am I right in thinking that the recovery is the problem and would anyone have a copy of the recovery I'm looking for??

kieranc88 said:
I tried to update to KitKat officially over the air but I get an error message , I had a custom recovery but flashed back to a version of the stock recovery,thing is I think its the recovery that's the problem,I don't know which version of the moto g its from (tesco,us,Brazil) I'm not sure so I'm on the unlocked UK ROM retail.gb.en.GB bought from phones 4u . am I right in thinking that the recovery is the problem and would anyone have a copy of the recovery I'm looking for??
Click to expand...
Click to collapse
Are you also rooted, if so that's more likely the error.
There should be links in the forums to UK retail images.

scott_doyland said:
Are you also rooted, if so that's more likely the error.
There should be links in the forums to UK retail images.
Click to expand...
Click to collapse
I'm rooted yes but I did the temporary unroot option that's found in super su but I suppose the files are in the system still,the progress bar moves about a third of the way through the update then fails.

kieranc88 said:
I'm rooted yes but I did the temporary unroot option that's found in super su but I suppose the files are in the system still,the progress bar moves about a third of the way through the update then fails.
Click to expand...
Click to collapse
I have read in other threads that the unroot option possibly still leaves some system files different from what they originally were.
If possible can you flash cwm or twrp and backup /system. Then unpack/untar the backup on your PC and look at file
/system/etc/install- recovery.sh
See if it mentions superSU in the comments. This file is altered by superSU and I've heard it may be this file that does not get set back to its default when you unroot.
I can send you original file but you'd have to find a way to copy it to /system - hard if unrooted!! Maybe copy it and then unroot as I *think* this may work. The file seems to just start root daemon on boot so should be able to overwrite while rooted and then unroot.
I'm rooted and my update failed third of way through as well. However I wanted it to so updated while rooted on purpose as I want to stay on 4.3 (updating and letting it fail stops the 'update reminder').

scott_doyland said:
I have read in other threads that the unroot option possibly still leaves some system files different from what they originally were.
If possible can you flash cwm or twrp and backup /system. Then unpack/untar the backup on your PC and look at file
/system/etc/install- recovery.sh
See if it mentions superSU in the comments. This file is altered by superSU and I've heard it may be this file that does not get set back to its default when you unroot.
I can send you original file but you'd have to find a way to copy it to /system - hard if unrooted!! Maybe copy it and then unroot as I *think* this may work. The file seems to just start root daemon on boot so should be able to overwrite while rooted and then unroot.
I'm rooted and my update failed third of way through as well. However I wanted it to so updated while rooted on purpose as I want to stay on 4.3 (updating and letting it fail stops the 'update reminder').
Click to expand...
Click to collapse
Yeah,send it,I'll try copying it,unrooting and then trying the update

kieranc88 said:
Yeah,send it,I'll try copying it,unrooting and then trying the update
Click to expand...
Click to collapse
And will it matter what version of the stick recovery I'm using( if there are different versions)

kieranc88 said:
I tried to update to KitKat officially over the air but I get an error message , I had a custom recovery but flashed back to a version of the stock recovery,thing is I think its the recovery that's the problem,I don't know which version of the moto g its from (tesco,us,Brazil) I'm not sure so I'm on the unlocked UK ROM retail.gb.en.GB bought from phones 4u . am I right in thinking that the recovery is the problem and would anyone have a copy of the recovery I'm looking for??
Click to expand...
Click to collapse
check out this thread: http://forum.xda-developers.com/showthread.php?t=2611544
my posts have links to guides/files that helped me fix the OTA update error, and the thread as a whole should help you out
xTx

tee_pot said:
check out this thread: http://forum.xda-developers.com/showthread.php?t=2611544
my posts have links to guides/files that helped me fix the OTA update error, and the thread as a whole should help you out
xTx
Click to expand...
Click to collapse
OK,well at the moment I'm trying out cm11 unofficial builds,I'll see how they go, I'll try the full unroot option when I restore my cwm backup and reflash stock recovery and see if that works ,as I only tried the temporary unroot option in supersu(which is probably leaving some root files behind so it can reinstall su ) if that don't work I'll flash back to stock and try again.

kieranc88 said:
Yeah,send it,I'll try copying it,unrooting and then trying the update
Click to expand...
Click to collapse
I will send file tomorrow when I'm at my PC.

kieranc88 said:
Yeah,send it,I'll try copying it,unrooting and then trying the update
Click to expand...
Click to collapse
I have attached the file /system/etc/install-recovery.sh file to this post (had to gzip it as couldnt upload when it was just called .sh)
Im not sure what the original persmissions of the file should be on your phone, but if you make it read/write/executable by everyone then should be OK I guess.
As I mentioned it'd be good if you unrooted and did a backup and extracted the file to see the contents (before copying over the file). That would first tell you for sure if the file does revert back to original or if it stays as a 'superSU' file when you unroot.
If its reverted back to original then my theory is wrong anyway so no need to copy over the file.
Re the stock recovery type/version being different from what is expected - I dont know if that makes a difference to the OTA working or not. Its an interesting question though so I may do some googling and find out.

I also have a UK retail stock recovery.img (taken with CWM) (my phone is 16GB from phones4u). So if you want that you can have it. Should rule out the recovery type as a problem.
FYI the install-recovery.sh original file actually flashes a new stock recovery when an OTA is performed. At least if you look in the comments of the file I attached above thats what it says.

[Q] Can you OTA update a Nexus 5 and keep root?

Ok so I just recently got my hands on a Nexus 5 which I rooted with CF Auto Root and relocked the bootloader with Bootunlocker for security (I'm guessing I should unlock before the update). I see reports surfacing of a possible 4.4.3 update in the near future. So before that happens I want to figure out the best practice for updating a N5 with CF Auto Root. It stands to reason I'll do a full backup so that's a given.
I'm not new to rooting. Done it a few times. Just haven't had a device that gets regular OTAs in my country so it hasn't come up.
Is there a way to update so that root is preserved? Obviously I'd like to keep the process as simple as possible but if I have to work from scratch it's not the end of the world.
As I understand it, you can do normal OTA as long as it's stock but you lose root. In that case, does the OTA relock the bootloader or will it stay unlocked? Which then basically means a new root which wipes the device.
Or perhaps it's better to ask what the best procedure for updating a stock Nexus 5 with CF Auto Root.

Everything that you have ever wanted to know about OTA can be found here http://forum.xda-developers.com/google-nexus-5/general/info-nexus-5-ota-help-desk-t2523217

Ah thanks. Appreciate it.

generally no, after ota you lose root. but there are apps that will save your root so that you keep root after an update.

I've been looking at Survival Mode in Super SU and RootKeeper but there seems to be some question as to their success.

Reaper1242 said:
I've been looking at Survival Mode in Super SU and RootKeeper but there seems to be some question as to their success.
Click to expand...
Click to collapse
ive never used any since i dont ota, i update my custom rom as soon as its updated, but ive heard of success with rootkeeper. but it doesnt matter, it literally takes 3 minutes to root a nexus the right way(via fastboot).

Yea, I should use fastboot in future.

Reaper1242 said:
As I understand it, you can do normal OTA as long as it's stock but you lose root. In that case, does the OTA relock the bootloader or will it stay unlocked? Which then basically means a new root which wipes the device.
Click to expand...
Click to collapse
The stock Android OS update will not relock the bootloader. So, once you apply the OTA.zip file in recovery, all you will need to do is reflash the SuperSU, and you are done.
(Note that depending on your system status, you may not be able to apply the OTA.zip directly - for instance, if you have updated/deleted system files etc, in which case, you will first need to go back to stock - refer to the link that @mistahseller provided for details about how to go back to stock)

jj14 said:
The stock Android OS update will not relock the bootloader. So, once you apply the OTA.zip file in recovery, all you will need to do is reflash the SuperSU, and you are done.
(Note that depending on your system status, you may not be able to apply the OTA.zip directly - for instance, if you have updated/deleted system files etc, in which case, you will first need to go back to stock - refer to the link that @mistahseller provided for details about how to go back to stock)
Click to expand...
Click to collapse
you would need to flash a custom recovery first, then supersu in your custom recovery.

Thanks everyone for the responses.You've made everything much clearer.

simms22 said:
you would need to flash a custom recovery first, then supersu in your custom recovery.
Click to expand...
Click to collapse
Good point. I assumed that op had installed a custom recovery when he rooted, but that is not always the case.

Ok so I'm going to sideload myself. Been a while so I just want to confirm the process so I don't screw up.
I'm using TWRP
Obviously I'll do a NANdroid and probably Titanium as well.
1) Unlock bootloader with Bootunlocker
2) Connect device to PC
3) Boot into TWRP recovery and go to Advanced > ADB Sideload
4) type adb sideload update.zip (or whatever I call the file)
5) reboot device and check if it's working
6) reboot to recovery and reflash superuser.zip
I think that's it. Is there anything else I need to be aware of? If I'm right it should then be updated, rooted and in the same state before I updated.

I am in the same situation. I am currently rooted with a unlocked boot loader. When 4.4.3 comes along I plan to upgrade it. I have only rooted and have CWM no custom ROM. I know o cannot perform a OTA update. So do I copy the update zip (4.4.3) and just flash in CWM? Is this correct, and if so do I lose root/ boot loader. Thanks. I have read the thread above but do not understand
Sent from my Nexus 5 using XDA Premium 4 mobile app

dec1153 said:
I am in the same situation. I am currently rooted with a unlocked boot loader. When 4.4.3 comes along I plan to upgrade it. I have only rooted and have CWM no custom ROM. I know o cannot perform a OTA update. So do I copy the update zip (4.4.3) and just flash in CWM? Is this correct, and if so do I lose root/ boot loader. Thanks. I have read the thread above but do not understand
Sent from my Nexus 5 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Flash stock system.img and flash recovery.img and then do the update.zip from the stock recovery..
If you don't want to flash, then make sure you have removed all the modifications you have done to system apps. If you don't remember then I would certainly recommend flashing stock images...
Sent from my Nexus 5 using Tapatalk

Moto G XT1033 (India) problems updating to Lollipop

Hello everyone, I have a Moto G (2013) aka first generation Moto G & I live in India. I had unlocked my bootloader. I even flashed cwm touch via fastboot but it doesn't go to recovery mode at all. I get a black screen. I tried flashing the official TWRP 2.8.4.0 today, but I get a message that reads, "Partition size mismatch" & I'm stuck. The phone is usable & it boots up normally & I use it daily. But it is the recovery that is messed up. I tried updating to lollipop by ota but the device got stuck on a black screen once the ota was downloaded. I tried downloading the KitKat factory image, but the link is dead. Please, somebody help!! Thanks in advance!
Sent from my XT1033 using xda premium

The partition size mismatch error can be ignored, You get that error because the TWRP 2.8.4.0 is for the XT1032 and not the XT1033. To flash the OTA, you have to use the stock recovery only. Your system should not be modified (eg. It shouldn't be rooted, and if it had been rooted previously, you will have to unroot it.) To flash the stock recovery again, download the Asian XT1033 4.4.4 firmware and just flash the "recovery.img" from it. The flash the OTA. The numerous guides regarding this in the general section should help you.

I have a similar question.
I have unlocked bootloader & rooted moto g.
I received official OTA update today but its not installing. Do I need to lock bootloader or do something else to install the official OTA update?

Facing a similar issue. Updated the moto g and was successful. It was used for a couple of days before the error cropped up.
Now, it boots up but goes to a black screen after the boot animation. However, it still connects to the computer and I'm able to see the phone and its files in explorer. Beyond that, I can't interact with the phone because the screen is totally black.
Additionally, I can access the bootloader, but selecting 'factory' or 'recovery' isn't doing anything - just black screens everywhere.
The phone was perfectly fine for a few days after the update. (The phone is unrooted and unmodded and was running stock at lolipop update.)
Another thread suggests that I should
Code:
fastboot erase cache
fastboot erase userdata
Is that a viable course of action? Has anybody been able to recover from this issue?

pr.itdude said:
I have a similar question.
I have unlocked bootloader & rooted moto g.
I received official OTA update today but its not installing. Do I need to lock bootloader or do something else to install the official OTA update?
Click to expand...
Click to collapse
No need to lock. Unroot, reflash stock signed recovery and you should be good to go. Also undo any modifications you made to the filesystem and wiping /cache should help prevent errors.
---------- Post added at 02:42 AM ---------- Previous post was at 02:40 AM ----------
SoberDogs said:
Facing a similar issue. Updated the moto g and was successful. It was used for a couple of days before the error cropped up.
Now, it boots up but goes to a black screen after the boot animation. However, it still connects to the computer and I'm able to see the phone and its files in explorer. Beyond that, I can't interact with the phone because the screen is totally black.
Additionally, I can access the bootloader, but selecting 'factory' or 'recovery' isn't doing anything - just black screens everywhere.
The phone was perfectly fine for a few days after the update. (The phone is unrooted and unmodded and was running stock at lolipop update.)
Another thread suggests that I should
Code:
fastboot erase cache
fastboot erase userdata
Is that a viable course of action? Has anybody been able to recover from this issue?
Click to expand...
Click to collapse
Try fastboot erase cache, it shouldn't delete any of your data and it might be enough to get the device working again. You might want to wipe the dalvik-cache as well. If all else fails, since you can access you filesystem, backup all important files and do a factory reset.

skyguy126 said:
No need to lock. Unroot, reflash stock signed recovery and you should be good to go. Also undo any modifications you made to the filesystem and wiping /cache should help prevent errors.
Click to expand...
Click to collapse
Ok. Few more Q pls:
1. Reflashing stock recovery wipes system data & apps? After this my phone will be rooted or not? Any links where i can read more about it?
2. I have stock ROM but yes I installed xposed framework & few modules. Is it a filesystem modification?
3. Any other alternative to this?

pr.itdude said:
Ok. Few more Q pls:
1. Reflashing stock recovery wipes system data & apps? After this my phone will be rooted or not? Any links where i can read more about it?
2. I have stock ROM but yes I installed xposed framework & few modules. Is it a filesystem modification?
3. Any other alternative to this?
Click to expand...
Click to collapse
1. No it should not. If you had root before you will still have it. Search in the forum for more info.
2. Yes but you can easily uninstall xposed with the click of a button.
3. This is by far the easiest and safest method. I know of one alternative is to flash the ota update zip through custom recovery but you are on your own there.

skyguy126 said:
1. No it should not. If you had root before you will still have it. Search in the forum for more info.
2. Yes but you can easily uninstall xposed with the click of a button.
3. This is by far the easiest and safest method. I know of one alternative is to flash the ota update zip through custom recovery but you are on your own there.
Click to expand...
Click to collapse
ok so Here what i am planning:
1. Uninstall all modules & xposed framework
2. Unroot using supersu
3. Restore/reflash stock recovery (just recovery not whole firmware as I already have stock rom)
4. Install the update either manually via recovery or using auto install.
Am i on right path? Pls help me on step 3, any link or step-t-step guide? I couldn't find one, every post is abt restoring whole firmware.
TIA. Cheers !!

pr.itdude said:
ok so Here what i am planning:
1. Uninstall all modules & xposed framework
2. Unroot using supersu
3. Restore/reflash stock recovery (just recovery not whole firmware as I already have stock rom)
4. Install the update either manually via recovery or using auto install.
Am i on right path? Pls help me on step 3, any link or step-t-step guide? I couldn't find one, every post is abt restoring whole firmware.
TIA. Cheers !!
Click to expand...
Click to collapse
Yep you should be good good luck!!!

Moto G (1st gen) OTA to Lollipop fails

Hi folks, so, I received OTA update for my Moto G (XT1032).
Phone was rooted (I did unroot from SuperSU). Also, I've re-installed Stock recovery (to make sure) and wiped cache/dalvik.
But, update still fails.
I don't have much root-related soft (like Xposed etc) installed - so pretty sure this should not cause an issue.
But still, update fails.
Any ideas how to troubleshoot/make it work? Maybe installing OTA somehow from recovery (custom one, TWRP)?
Any comments - much appreciated. I guess I'm not alone in this, but still...
Thanks

Same problem here

Ulverinho said:
Hi folks, so, I received OTA update for my Moto G (XT1032).
Phone was rooted (I did unroot from SuperSU). Also, I've re-installed Stock recovery (to make sure) and wiped cache/dalvik.
But, update still fails.
I don't have much root-related soft (like Xposed etc) installed - so pretty sure this should not cause an issue.
But still, update fails.
Any ideas how to troubleshoot/make it work? Maybe installing OTA somehow from recovery (custom one, TWRP)?
Any comments - much appreciated. I guess I'm not alone in this, but still...
Thanks
Click to expand...
Click to collapse
Have to install stock ROM again then update it via ota. Could also try flashing an ota update file via the official recovery of your phone.

A_Bunny said:
Have to install stock ROM again then update it via ota. Could also try flashing an ota update file via the official recovery of your phone.
Click to expand...
Click to collapse
Yep, my guess was the same. As per official recovery - I'll try adb sideload, but first time it couldn't find phone (all drivers installed and up-to-date).
http://forum.xda-developers.com/moto-g/help/driver-fastboot-falcon-s-t2820848
This error pops up - I can't find solution also...

Ulverinho said:
Yep, my guess was the same. As per official recovery - I'll try adb sideload, but first time it couldn't find phone (all drivers installed and up-to-date).
http://forum.xda-developers.com/moto-g/help/driver-fastboot-falcon-s-t2820848
This error pops up - I can't find solution also...
Click to expand...
Click to collapse
Install the recovery with fastboot not adb.

A_Bunny said:
Install the recovery with fastboot not adb.
Click to expand...
Click to collapse
Well, I might misunderstood, but:
I have official recovery (fastboot is mode of it, I guess, when U press Power+volume key?)
I've read about adb sideload zip_name_of_OTA.zip
I don't know any other way to install OTA apart from let phone handle it OR adb sideload.

Ulverinho said:
Well, I might misunderstood, but:
I have official recovery (fastboot is mode of it, I guess, when U press Power+volume key?)
I've read about adb sideload zip_name_of_OTA.zip
I don't know any other way to install OTA apart from let phone handle it OR adb sideload.
Click to expand...
Click to collapse
Just load it onto your phone before you flash it. Your ROM does work.

A_Bunny said:
Just load it onto your phone before you flash it. Your ROM does work.
Click to expand...
Click to collapse
Load ZIP of OTA on SD Card and install it from Recovery? Will it work?

Ulverinho said:
Load ZIP of OTA on SD Card and install it from Recovery? Will it work?
Click to expand...
Click to collapse
It may work if it is the stock recovery.

A_Bunny said:
It may work if it is the stock recovery.
Click to expand...
Click to collapse
Got this, screenshot in attachment.
Fingerprints are wrong. In build.prop - I can see it's fine, fingerprint of current 4.4.4. - matches expected.
But as soon as update starts - it says that 4.4.2 is fingerprint of my OS. Bollocks.
Edited OTA zip, edited some metadata file...
Why it won't install on pretty clean phone - I can't understand...Previous installs of OTA went fine with root etc.

Ulverinho said:
Got this, screenshot in attachment.
Fingerprints are wrong. In build.prop - I can see it's fine, fingerprint of current 4.4.4. - matches expected.
But as soon as update starts - it says that 4.4.2 is fingerprint of my OS. Bollocks.
Edited OTA zip, edited some metadata file...
Why it won't install on pretty clean phone - I can't understand...Previous installs of OTA went fine with root etc.
Click to expand...
Click to collapse
Well the only thing I would recommend would be to install the stock system though fastboot manualy.

Ulverinho said:
Hi folks, so, I received OTA update for my Moto G (XT1032).
Phone was rooted (I did unroot from SuperSU). Also, I've re-installed Stock recovery (to make sure) and wiped cache/dalvik.
But, update still fails.
I don't have much root-related soft (like Xposed etc) installed - so pretty sure this should not cause an issue.
But still, update fails.
Any ideas how to troubleshoot/make it work? Maybe installing OTA somehow from recovery (custom one, TWRP)?
Any comments - much appreciated. I guess I'm not alone in this, but still...
Thanks
Click to expand...
Click to collapse
i feel ya same thing here, than i tryed installing a stock lollipop from here via twrp witch ended up messing my phone with failing the procedure wondered around couldnt revert to stock since im a noob and didnt even backed up the rom,but at the and of the day thank god for the cm12.1 finally menaged to make my phone running again at least

Greetings, I have the same problem, it is the last screen that appears when you install the update, and then restarts it goes off the screen update error ...

To anyone having issues:
1. Make sure you're on completely stock 4.4.4 (Refer to http://forum.xda-developers.com/moto-g/development/rom-stock-motorola-rom-collection-t2854688 and use only untouched 4.4.4 version for your phone if you have to reflash before continuing)
2. Make sure you're on stock recovery (Refer to http://forum.xda-developers.com/showthread.php?t=2649763)
*Uninstall XPOSED if using it
3. I personally let update run on its own after reverting everything to stock.

fusionice said:
To anyone having issues:
1. Make sure you're on completely stock 4.4.4 (Refer to http://forum.xda-developers.com/moto-g/development/rom-stock-motorola-rom-collection-t2854688 and use only untouched 4.4.4 version for your phone if you have to reflash before continuing)
2. Make sure you're on stock recovery (Refer to http://forum.xda-developers.com/showthread.php?t=2649763)
*Uninstall XPOSED if using it
3. I personally let update run on its own after reverting everything to stock.
Click to expand...
Click to collapse
Yeah, that's the better way.
But I guess, I can install Stock 5.* straight away after wiping? Why bother about OTA, if there is ROM available?

fusionice said:
To anyone having issues:
1. Make sure you're on completely stock 4.4.4 (Refer to http://forum.xda-developers.com/moto-g/development/rom-stock-motorola-rom-collection-t2854688 and use only untouched 4.4.4 version for your phone if you have to reflash before continuing)
2. Make sure you're on stock recovery (Refer to http://forum.xda-developers.com/showthread.php?t=2649763)
*Uninstall XPOSED if using it
3. I personally let update run on its own after reverting everything to stock.
Click to expand...
Click to collapse
Yep.
The solution is backup data, restore stock last firmware using fastboot guide posted in this forum and not even update apps (cancel gmail registration and everything it asks when it first starts) ONLY update motorola update services so you can get the ota again an install it. If you have the ota downloaded you can flash it through recovery but using the last recovery version (.61) and of course last firmware version. If you guys flash it all through fastboot, it should install w/o any problems.

6.0.1 ota with stock rooted 6.0

My v10 downloaded an OTA , which im assuming is 6.0
1. Im rooted on stock 6.0 and unlocked boot loader. Will the OTA work without messing up anything ? Ill have to root again im sure, just want some info before i pull the trigger.

I don't think the update will even proceed being that you're on a rooted ROM. I have that notification too, and i just don't know how to turn it off.

I to am rooted,unlockboot and stock rom. I don't feel like taking a chance. So I used titanium backup to freeze the software update and in the drop down notification if you press it, it's a notification from Google play services if you block it in apps it will disappear from your drop down. I also deleted the update zip in the cache folder.I used es file explorer ,device/cache/update

popwar said:
My v10 downloaded an OTA , which im assuming is 6.0
1. Im rooted on stock 6.0 and unlocked boot loader. Will the OTA work without messing up anything ? Ill have to root again im sure, just want some info before i pull the trigger.
Click to expand...
Click to collapse
Okay, I'm assuming you are on H90120e (system version). There is a root exploit for the H90120j update. You just do the following:
Make a backup of your apps and settings
Flash your phone to the new update (H90120j)?
Take a look at either one of these threads to root your device again:
http://forum.xda-developers.com/tmobile-lg-v10/general/step-step-guide-rooting-lg-v10-using-t3382631
OR
http://forum.xda-developers.com/tmobile-lg-v10/general/root-android-6-0-h901-t3382819

You can't flash the phone that is already rooted and has TWRP.
I am in this same situation. On stock rom with root and twrp. I want to update to the new update, but do not want to loose all my apps, settings, etc.
Question is, how to do the initial update before having to re-root again?
How do we flash the phone with the new update?

bhagiratha said:
You can't flash the phone that is already rooted and has TWRP.
I am in this same situation. On stock rom with root and twrp. I want to update to the new update, but do not want to loose all my apps, settings, etc.
Question is, how to do the initial update before having to re-root again?
How do we flash the phone with the new update?
Click to expand...
Click to collapse
Why can't you flash the phone that is already rooted and has TWRP?
All you are doing is opening the LGUP tool and flashing the new H90120j .kdz file using the "refurbish" option then flashing the H90120j .tot file that has TWRP using the "update" option which will flash the phone regardless of what is running on your phone. The guides on the first link explain that. I believe your concern is keeping all of your settings and apps. Look up Titanium backup, it works for me.

Thank you. I only flash the LGH901AT-01-V20j-310-260-JUL-12-2016-ARB02+0ROOTTWRP tot file and all is good.
Well except that I lost Dolby audio.
I will look for a fix.

jun19inf said:
Okay, I'm assuming you are on H90120e (system version). There is a root exploit for the H90120j update. You just do the following:
Make a backup of your apps and settings
Flash your phone to the new update (H90120j)?
Take a look at either one of these threads to root your device again:
http://forum.xda-developers.com/tmobile-lg-v10/general/step-step-guide-rooting-lg-v10-using-t3382631
OR
http://forum.xda-developers.com/tmobile-lg-v10/general/root-android-6-0-h901-t3382819
Click to expand...
Click to collapse
Hi,
Do I have to use LGUP to install the update or can I click install on the dropdown of my phone?
I'm on stock MM 6.0 (H90120e) Rooted and I will not have access to my main PC for another week as I'm traveling.
Thanks,
-NJ

Anyone?

bhagiratha said:
You can't flash the phone that is already rooted and has TWRP.
I am in this same situation. On stock rom with root and twrp. I want to update to the new update, but do not want to loose all my apps, settings, etc.
Question is, how to do the initial update before having to re-root again?
How do we flash the phone with the new update?
Click to expand...
Click to collapse
There's a guide in general that tells how to do all this. In fact jun19inf WROTE it.
In a nutshell, do a twrp backup.
Upgrade to 20j by flashing the stock 20j kbz.
Enable usb debugging and oem unlock
flash tot that has twrp in it.
Now you can go into twrp and 1) root via supersu 2) restore ONLY data from your twrp backup taken previously to get your apps etc back. Alternatively Titanium Backup will also do just fine.

njdevils28 said:
Hi,
Do I have to use LGUP to install the update or can I click install on the dropdown of my phone?
I'm on stock MM 6.0 (H90120e) Rooted and I will not have access to my main PC for another week as I'm traveling.
Thanks,
-NJ
Click to expand...
Click to collapse
If all is you have is root, you should be able to unroot in the SuperSU settings, and then let the update install. But if you have TWRP, then I can't see any way to do the update without using a PC to flash your phone back to stock ROM and recovery. Although you may check the dev. section to see if Eliminator has a flashable ROM to bring you up to date.
Sent from my LG-H901 using XDA-Developers mobile app

YrrchSebor said:
If all is you have is root, you should be able to unroot in the SuperSU settings, and then let the update install. But if you have TWRP, then I can't see any way to do the update without using a PC to flash your phone back to stock ROM and recovery. Although you may check the dev. section to see if Eliminator has a flashable ROM to bring you up to date.
Sent from my LG-H901 using XDA-Developers mobile app
Click to expand...
Click to collapse
Ah. Thank you very much!
-NJ

Hi all. I just got my factory warranty back and I attempted to root it. Everything went as it should, until just after the install finished. Instead of rebooting normally, it now will only reboot into TWRP. Once there, when I try to flash a custom ROM (in this case, Bliss, but I don't think it matters, I get an error message that says the zip file is corrupt. Then, while still in recovery, when I tried to wipe everything except the sd card, it says mkfs.fat process ended with error. I then powered down and attempted the factory reset. I scrolled down on both screens and it did not say anything about any errors, so I assumed it took. However, it reboots right back into TWRP recovery. It also boots right to TWRP recovery when I try to boot normally. Of course, adb does not recognize the phone in any mode that I can get into (fastboot/recovery/download), so, I can't use LG Bridge to reflash the original firmware. Does anybody have any ideas for a fix? I know that this replacement phone had 6.0 on it. I thought I did everything to a t? TIA...
OK, not sure how I got there, but when I attempt to reboot from TWRP it says No OS Installed! Are you sure you want to reboot? That at least says what the problem is. Does anybody know how to fix this?

Where can I download the update file?

wbexpress said:
Hi all. I just got my factory warranty back and I attempted to root it. Everything went as it should, until just after the install finished. Instead of rebooting normally, it now will only reboot into TWRP. Once there, when I try to flash a custom ROM (in this case, Bliss, but I don't think it matters, I get an error message that says the zip file is corrupt. Then, while still in recovery, when I tried to wipe everything except the sd card, it says mkfs.fat process ended with error. I then powered down and attempted the factory reset. I scrolled down on both screens and it did not say anything about any errors, so I assumed it took. However, it reboots right back into TWRP recovery. It also boots right to TWRP recovery when I try to boot normally. Of course, adb does not recognize the phone in any mode that I can get into (fastboot/recovery/download), so, I can't use LG Bridge to reflash the original firmware. Does anybody have any ideas for a fix? I know that this replacement phone had 6.0 on it. I thought I did everything to a t? TIA...
OK, not sure how I got there, but when I attempt to reboot from TWRP it says No OS Installed! Are you sure you want to reboot? That at least says what the problem is. Does anybody know how to fix this?
Click to expand...
Click to collapse
Did you select refurbish or upgrade?
I believe you need to select upgrade when flashing or you get stuck in TWRP
Sent from my LG-H901 using XDA-Developers mobile app

How to root V10 T-mobile M.M ver V20L
How to root V10 T-mobile M.M ver V20L
Can some one guide me on the following:
1. Can I flash back and downgrade to Software version V20J from V20L.
2. Is there any root method for V10 t-mobile MM ver V20L.

1. It is well explained in this forum, you CANNOT go back without facing a software brick.
2. You can root your phone through Dirty_Cow method or by flash Eliminater74 ROM (Part1 & Part2).
Again, search for that in this section and in development one...

jonsat said:
1. It is well explained in this forum, you CANNOT go back without facing a software brick.
2. You can root your phone through Dirty_Cow method or by flash Eliminater74 ROM (Part1 & Part2).
Again, search for that in this section and in development one...
Click to expand...
Click to collapse
Thanks so much for your reply, I was about to flash it to downgrade my V10 from V20L to V20J i even downloaded the files for it Phew....
Okay, I have searched most of the rootings are V20J i have not found a method for rooting and twrp for V20L software update.
Please if u can share the link, that would be helpful...
thanks regards,

I wonder how people perform searches... by the way, few lines under this very thread, there is:
https://forum.xda-developers.com/tmobile-lg-v10/general/root-20l-dirty-cow-t3498722

jonsat said:
I wonder how people perform searches... by the way, few lines under this very thread, there is:
https://forum.xda-developers.com/tmobile-lg-v10/general/root-20l-dirty-cow-t3498722
Click to expand...
Click to collapse
Awwhh GOD!!! big thanks for your help, u r truly an awesome person. Peace and blessing upon u.
regards,