Remove ATT Rom and going to a non att stock rom - LG V20 Questions & Answers

Hello,
I Just bought from a website a " refurbished " LG V20 and sadly when I turned it on I was shocked it was on att but it's unlocked, but sadly since it's at&t I can't get software updates, is there a way that I can have a stock rom on it instead off at&t? if yes can you guys show me how ?
Note: I have 0 experience and how to do these kind of things but I can follow guide lines.

Search for backup EFS. Do it.
Then feel free to flash the US996 KDZ. Again, if you search, there is plenty of info.
-- Brian

runningnak3d said:
Search for backup EFS. Do it.
Then feel free to flash the US996 KDZ. Again, if you search, there is plenty of info.
-- Brian
Click to expand...
Click to collapse
Yep no spoon ? feeding
Sent from my LG-H910 using XDA Labs

thank you fr the reply!
I did this set uphttps://forum.xda-developers.com/v20/how-to/guide-root-twrp-lg-v20-using-dirtysanta-t3722278 and i finshed it but now I am a bit confused on which rom to download follow guide lines , giving a help wull be nice >.>

MrSalue said:
thank you fr the reply!
I did this set uphttps://forum.xda-developers.com/v20/how-to/guide-root-twrp-lg-v20-using-dirtysanta-t3722278 and i finshed it but now I am a bit confused on which rom to download follow guide lines , giving a help wull be nice >.>
Click to expand...
Click to collapse
Again no spoon ? feeding, try them out and find the one you like
Sent from my LG-H910 using XDA Labs

cnjax said:
Again no spoon ? feeding, try them out and find the one you like
Sent from my LG-H910 using XDA Labs
Click to expand...
Click to collapse
I don't want to "try" I just want to know which is a normal stock rom with no bloatware that I can have root on x.x!!
you are making it so difficult on me xD

MrSalue said:
I don't want to "try" I just want to know which is a normal stock rom with no bloatware that I can have root on x.x!!
you are making it so difficult on me xD
Click to expand...
Click to collapse
No one is making anything difficult, search the forum, read the OP of rom threads until you find what you're looking for, how difficult is it to do some reading,? #NoSpoonFeeding
Sent from my LG-H910 using XDA Labs

Download patched LG UP
Download US996 10p KDZ
Place your phone into download mode. With the phone off, hold vol up and plug in the USB cable.
In LG UP, use the DUMP option and select modemst1, modemst2, persist, persistent and misc
Then while still in LG UP, use partition DL mode, select the US996 KDZ, select all partitions, and flash.
Enjoy your H910 converted to a US996.
If you have data or voice problems after the conversion, then you will have to root to fix it. You can't root on 10p firmware, so you will have to flash older firmware. Even though you will have flashed the US996 firmware, you can use the H910 root procedure here. Once you are rooted, you can flash a US996 stock ROM via TWRP to return to stock US996 (with or without keeping root -- tis up to you).
Once rooted, you can flash modemst1 and modemst2 (ignore the others, it is just a good idea to have backups of them) that you backed up in step 3.
Boot to flastboot. With the phone off, hold vol down and plug in the USB cable
fastboot flash C:\path\to\modemst1 modemst1
fastboot flash C:\path\to\modmst2 modemst2
Again, those steps will ONLY be required if for some reason you get unlucky and your EFS gets hosed.
@cnjax Hope that is a chick, cause I decided to hold her hand good.....
-- Brian

runningnak3d said:
Download patched LG UP
Download US996 10p KDZ
Place your phone into download mode. With the phone off, hold vol up and plug in the USB cable.
In LG UP, use the DUMP option and select modemst1, modemst2, persist, persistent and misc
Then while still in LG UP, use partition DL mode, select the US996 KDZ, select all partitions, and flash.
Enjoy your H910 converted to a US996.
If you have data or voice problems after the conversion, then you will have to root to fix it. You can't root on 10p firmware, so you will have to flash older firmware. Even though you will have flashed the US996 firmware, you can use the H910 root procedure here. Once you are rooted, you can flash a US996 stock ROM via TWRP to return to stock US996 (with or without keeping root -- tis up to you).
Once rooted, you can flash modemst1 and modemst2 (ignore the others, it is just a good idea to have backups of them) that you backed up in step 3.
Boot to flastboot. With the phone off, hold vol down and plug in the USB cable
fastboot flash C:\path\to\modemst1 modemst1
fastboot flash C:\path\to\modmst2 modemst2
Again, those steps will ONLY be required if for some reason you get unlucky and your EFS gets hosed.
@cnjax Hope that is a chick, cause I decided to hold her hand good.....
-- Brian
Click to expand...
Click to collapse
Lmao with a nick starting with Mr, you might be in for a surprise
Sent from my LG-H910 using XDA Labs

He got spoon fed

runningnak3d said:
Download patched LG UP
Download US996 10p KDZ
Place your phone into download mode. With the phone off, hold vol up and plug in the USB cable.
In LG UP, use the DUMP option and select modemst1, modemst2, persist, persistent and misc
Then while still in LG UP, use partition DL mode, select the US996 KDZ, select all partitions, and flash.
Enjoy your H910 converted to a US996.
If you have data or voice problems after the conversion, then you will have to root to fix it. You can't root on 10p firmware, so you will have to flash older firmware. Even though you will have flashed the US996 firmware, you can use the H910 root procedure here. Once you are rooted, you can flash a US996 stock ROM via TWRP to return to stock US996 (with or without keeping root -- tis up to you).
Once rooted, you can flash modemst1 and modemst2 (ignore the others, it is just a good idea to have backups of them) that you backed up in step 3.
Boot to flastboot. With the phone off, hold vol down and plug in the USB cable
fastboot flash C:\path\to\modemst1 modemst1
fastboot flash C:\path\to\modmst2 modemst2
Again, those steps will ONLY be required if for some reason you get unlucky and your EFS gets hosed.
@cnjax Hope that is a chick, cause I decided to hold her hand good.....
-- Brian
Click to expand...
Click to collapse
Thank you, your post is the first one I found that makes it seem fairly simple.
I have 2 V20 h910s I want to unbrand, one running AT&T version 10m and one running 10r (which complicates matters further), and I would like to avoid installing a bootloader/root/etc. which prevents future updates/upgrades to later software versions (so other existing guides have put me off for multiple reasons).
Is what you listed all I need to do (in both cases), or do I need to root (or bootloader unlock etc.) first?
Can I install any future stock US996 ROMs (ie when Oreo is released) once I have done this, or will I have to reverse the steps and start over with h910/ATT software?

MrSalue said:
I don't want to "try" I just want to know which is a normal stock rom with no bloatware that I can have root on x.x!!
you are making it so difficult on me xD
Click to expand...
Click to collapse
Edit: Brain explained to you rather more profoundly. I rest my case of explaining it further

dark_prince said:
Edit: Brain explained to you rather more profoundly. I rest my case of explaining it further
Click to expand...
Click to collapse
Hi.
I also have a few questions (as I'm new to this and have found conflicting information, and in addition I have two h910 phones running different firmware versions, one v10m and one v10r).
1) My phone's aren't rooted - Is what Brian explained all I need to do, or does his explanation require a bootloader-unlocked/rooted phone to work?
2) Are there any requirements/restrictions (eg. original firmware must be above/below version XYZ - if yes, does it make any sense to update the firmware to the latest AT&T version first)? Can I install any future versions of US996 KDZ that way too?
Thanks in advance.

AWT86 said:
Hi.
I also have a few questions (as I'm new to this and have found conflicting information, and in addition I have two h910 phones running different firmware versions, one v10m and one v10r).
1) My phone's aren't rooted - Is what Brian explained all I need to do, or does his explanation require a bootloader-unlocked/rooted phone to work?
2) Are there any requirements/restrictions (eg. original firmware must be above/below version XYZ - if yes, does it make any sense to update the firmware to the latest AT&T version first)? Can I install any future versions of US996 KDZ that way too?
Thanks in advance.
Click to expand...
Click to collapse
1. For 10m one, follow Brian's guide, for v10r, follow Brian's guide. Once you have unlocked bootloader/rooted, you have conceded official updates. Also there are no stock KDZ restoring methods to revert back to H910 but you can try a method to go bone-stock H910 if you're rooted and have TWRP recovery.
2. For H910? no, and no need to upgrade to latest att firmware. You can just jump the gun to US996
Edit: Make sure you take full backup dump with patched LGUP (from Brian's guide as well).

Thanks
dark_prince said:
1. For 10m one, follow Brian's guide, for v10r, follow Brian's guide. Once you have unlocked bootloader/rooted, you have conceded official updates. Also there are no stock KDZ restoring methods to revert back to H910 but you can try a method to go bone-stock H910 if you're rooted and have TWRP recovery.
2. For H910? no, and no need to upgrade to latest att firmware. You can just jump the gun to US996
Edit: Make sure you take full backup dump with patched LGUP (from Brian's guide as well).
Click to expand...
Click to collapse
Thanks a lot.
Two final questions (sorry to bother you):
1) Do I need to root/bootloader-unlock the device BEFORE proceeding to use Brian's guide, or can I just dump & then flash US996 straight away without rooting? (I read somewhere that root is only required if the signals fail after US996 conversion, but I'd rather ask than to skip root / just flash and then realize I messed up).
2) Will EFS be backed up in the process of dumping everything using patched LGUP, or do I need to back up EFS manually/seperately? If the latter is what I need to do, what is the best method? (I've found multiple, but most of them require root, which I'd rather avoid unless necessary)

AWT86 said:
Thanks a lot.
Two final questions (sorry to bother you):
1) Do I need to root/bootloader-unlock the device BEFORE proceeding to use Brian's guide, or can I just dump & then flash US996 straight away without rooting? (I read somewhere that root is only required if the signals fail after US996 conversion, but I'd rather ask than to skip root / just flash and then realize I messed up).
2) Will EFS be backed up in the process of dumping everything using patched LGUP, or do I need to back up EFS manually/seperately? If the latter is what I need to do, what is the best method? (I've found multiple, but most of them require root, which I'd rather avoid unless necessary)
Click to expand...
Click to collapse
1. Make a backup dump and flash US996 rom.
2. I havent known anyone who ran into corrupted EFS after crossflashing between H910/H915/US996. The restoring of modemst1,modemst2,modem, misc solves the problem of No baseband/IMEI. Do that at your own risk, there is no guarantee that you'll be safe from apocalypse

AWT86 said:
Thanks a lot.
Two final questions (sorry to bother you):
1) Do I need to root/bootloader-unlock the device BEFORE proceeding to use Brian's guide, or can I just dump & then flash US996 straight away without rooting? (I read somewhere that root is only required if the signals fail after US996 conversion, but I'd rather ask than to skip root / just flash and then realize I messed up).
2) Will EFS be backed up in the process of dumping everything using patched LGUP, or do I need to back up EFS manually/seperately? If the latter is what I need to do, what is the best method? (I've found multiple, but most of them require root, which I'd rather avoid unless necessary)
Click to expand...
Click to collapse
You do not have to root, just follow my post for flashing the US996 KDZ.
You only have to root IF you have signal issues, because that is the only way to fix them. Even then, you don't have to stay rooted.
I doubt you will have signal issues, but make sure you backup those partitions before you flash the US996 KDZ.
-- Brian

runningnak3d said:
You do not have to root, just follow my post for flashing the US996 KDZ.
You only have to root IF you have signal issues, because that is the only way to fix them. Even then, you don't have to stay rooted.
I doubt you will have signal issues, but make sure you backup those partitions before you flash the US996 KDZ.
-- Brian
Click to expand...
Click to collapse
Hi.
I'm having trouble with LGUP. When I try to dump all phone files, it gives me an error 0x2000 saying "not enough hard disk space", even though there should be more than enough.
Device Manager recognizes the device under Ports as "LGE AndroidNet USB Serial Port (COM8).
Help would be highly appreciated.
Thanks in advance.
EDIT: I managed to dump the files you recommended, but what about the rest? shouldn't I back those up too?
---------- Post added at 11:51 AM ---------- Previous post was at 11:24 AM ----------
runningnak3d said:
You do not have to root, just follow my post for flashing the US996 KDZ.
You only have to root IF you have signal issues, because that is the only way to fix them. Even then, you don't have to stay rooted.
I doubt you will have signal issues, but make sure you backup those partitions before you flash the US996 KDZ.
-- Brian
Click to expand...
Click to collapse
UPDATE: I flashed the first device, but it asked for a password that wasn't set up. UPDATE 2: solved w/ factory reset.
Thanks a lot and sorry for bothering you guys.

Glad you were able to do it.
As far as backing the other files up -- no, you can get those from a KDZ, so no reason to back them up. The partitions I had you backup are specific to your phone(s).
-- Brian

runningnak3d said:
You do not have to root, just follow my post for flashing the US996 KDZ.
You only have to root IF you have signal issues, because that is the only way to fix them. Even then, you don't have to stay rooted.
I doubt you will have signal issues, but make sure you backup those partitions before you flash the US996 KDZ.
-- Brian
Click to expand...
Click to collapse
Now flashed both devices, but noticed that the signals are unstable. Network jumps randomly from no network to 4G and back to no network etc - not in high frequency, but often enough for me to have noticed.
Does that mean I now have to go the route of rooting or is there anything else I can try?
Thanks and sorry to bother you once more.
PS: just noticed it seems to run stable with only 3G enabled, but once 4G is enabled the problem starts.

Related

Downgrade from 7.0 to 6.0.1 for the LG G5 H850

1,unlocked bootload,https://www.gizdev.com/lg-g5-h850-twrp-3-0-rooting-guide/
2,install rec for h850 ,http://thunderztech.com/root-lg-g5-on-android-7-0-nougat-with-twrp-recovery/
3,into rec and flash LG-H85010E-Flashable.Bootloader.zip from autoprime,http://forum.xda-developers.com/lg-g5/development/stock-h850-10e-eu-rom-flashable-zips-t3448273
4,lg up flash 6.0.1 kdz,http://forum.xda-developers.com/lg-g5/development/stock-h850-10e-eu-rom-flashable-zips-t3448273
5,wipe you device by keep volume- always and power,when look lg logo,press power again and keep it ,then press yes,yes
you have downgrade to 6.0.1
xjqlfq said:
1,unlocked bootload,https://www.gizdev.com/lg-g5-h850-twrp-3-0-rooting-guide/
2,install rec for h850 ,http://thunderztech.com/root-lg-g5-on-android-7-0-nougat-with-twrp-recovery/
3,into rec and flash LG-H85010E-Flashable.COMPLETE.zip from autoprime,http://forum.xda-developers.com/lg-g5/development/stock-h850-10e-eu-rom-flashable-zips-t3448273
4,lg up flash 6.0.1 kdz,http://forum.xda-developers.com/lg-g5/development/stock-h850-10e-eu-rom-flashable-zips-t3448273
5,wipe you device by keep volume- always and power,when look lg logo,press power again and keep it ,then press yes,yes
you have downgrade to 6.0.1
Click to expand...
Click to collapse
good info.
I can make it even easier... instead of downloading my 10E COMPLETE ZIP
Just download/flash my 10E BOOTLOADER ZIP. It'll make LGUP work again with M KDZs and the BOOTLOADER ZIP is much smaller!
autoprime said:
good info.
I can make it even easier... instead of downloading my 10E COMPLETE ZIP
Just download/flash my 10E BOOTLOADER ZIP. It'll make LGUP work again with M KDZs and the BOOTLOADER ZIP is much smaller!
Click to expand...
Click to collapse
thanks,get it
autoprime said:
good info.
I can make it even easier... instead of downloading my 10E COMPLETE ZIP
Just download/flash my 10E BOOTLOADER ZIP. It'll make LGUP work again with M KDZs and the BOOTLOADER ZIP is much smaller!
Click to expand...
Click to collapse
I had several problems with this procedure (coming from V20a):
1. After flashing 10C BOOTLOADER ZIP via TWRP, LGUP was not able to detect my device type anymore, but this worked with previous bootloader. Why?
2. Flashing the 10C COMPLETE ZIP did result in a loss of TWRP (although recovery.img is not part if complete ZIP). Why?
3. Flashing the 10E COMPLETE ZIP caused FCs and a bootloop Reset in system recovery did help to get the device up again.
After that LGUP did find again my H850 and upgrade option works now with M KDZs (which did not work under Nougat). But the refurbish option is still not working and says "not supported".
fuxi222 said:
I had several problems with this procedure (coming from V20a):
1. After flashing 10C BOOTLOADER ZIP via TWRP, LGUP was not able to detect my device type anymore, but this worked with previous bootloader. Why?
2. Flashing the 10C COMPLETE ZIP did result in a loss of TWRP (although recovery.img is not part if complete ZIP). Why?
3. Flashing the 10E COMPLETE ZIP caused FCs and a bootloop Reset in system recovery did help to get the device up again.
After that LGUP did find again my H850 and upgrade option works now with M KDZs (which did not work under Nougat). But the refurbish option is still not working and says "not supported".
Click to expand...
Click to collapse
1. I suggested 10E not 10C.. not sure why LGUP 1.14 + UPPERCUT wouldn't see it. But UPPERCUT is geared towards recent devices on recent software. It's possible 10C is too old to fall under the UPPERCUT 1.0.0.0 umbrella.. and you're always welcome to use the older LGUP methods instead.
2. You will always lose TWRP if you boot into Android without patching the boot.img or flashing supersu zip first. The stock system.img has a patch in it which always tries to replace the recovery partition with stock recovery.. and zips like supersu stop such things from happening. The procedure is to flash twrp.. boot into twrp.. flash supersu. flashing twrp then booting into android = no more twrp. this is standard android stuff for awhile now.
3. The refurbish option isn't needed and I've already explained in the UPPERCUT thread that refurbish is not supported. All refurbish option does is force the phone to run a factory reset after KDZ finishes... the user can just run a factory reset manually after the flash to achieve the exact same end result.
autoprime said:
1. I suggested 10E not 10C.. not sure why LGUP 1.14 + UPPERCUT wouldn't see it. But UPPERCUT is geared towards recent devices on recent software. It's possible 10C is too old to fall under the UPPERCUT 1.0.0.0 umbrella.. and you're always welcome to use the older LGUP methods instead.
2. You will always lose TWRP if you boot into Android without patching the boot.img or flashing supersu zip first. The stock system.img has a patch in it which always tries to replace the recovery partition with stock recovery.. and zips like supersu stop such things from happening. The procedure is to flash twrp.. boot into twrp.. flash supersu. flashing twrp then booting into android = no more twrp. this is standard android stuff for awhile now.
3. The refurbish option isn't needed and I've already explained in the UPPERCUT thread that refurbish is not supported. All refurbish option does is force the phone to run a factory reset after KDZ finishes... the user can just run a factory reset manually after the flash to achieve the exact same end result.
Click to expand...
Click to collapse
At first: Big thanks for your quick response!!!
to 1.: The reason for 10C instead of 10E is simple: you do not have a KDZ file for 10E on your codefire drive (only a ZIP), but for 10C the KDZ was available. And the links to LG server were not working yesterday for me.
I read Uppercut the first time now and will give it a try today in the evening (German time). :fingers-crossed:
to 2.: Understood. Thank you! :good:
to 3.: Then how can I get rid of the 3 error messages on start-up related to NT-code ("Can't find matched cust for NT-code" + "OP name for Buyer-code...")? I understood, that refurbish will flash new cust partition and this will solve the problem. I see cust.img also on your drive, but it is not inluded in the COMPLETE ZIPs. Would it help to flash this?
Or can LG Bridge help in this case? It does refuse to flash my phone, maybe because of the bootloader unlock?!
I read so many threads yesterday, but nothing solved this issue... :crying::crying:
fuxi222 said:
to 3.: Then how can I get rid of the 3 error messages on start-up related to NT-code ("Can't find matched cust for NT-code" + "OP name for Buyer-code...")? I understood, that refurbish will flash new cust partition and this will solve the problem. I see cust.img also on your drive, but it is not inluded in the COMPLETE ZIPs. Would it help to flash this?
Or can LG Bridge help in this case? It does refuse to flash my phone, maybe because of the bootloader unlock?!
I read so many threads yesterday, but nothing solved this issue... :crying::crying:
Click to expand...
Click to collapse
cust should be getting flashed regardless of selecting refurbish or not as far as I know.. but perhaps I'm wrong.
if you have root/twrp just zero out the cust partition or simply delete the files inside the cust folder using a file explorer app... and the error msg should go away on next reboot.
this is in the FAQ/Q&A section in the OP of all my stock threads for H850.
if you're on M and must flash a KDZ with refurb option... just use the old LGUP methods. but if you're sticking with TWRP there's not really any need to flash any KDZ.. you can flash whatever in TWRP instead.
autoprime said:
cust should be getting flashed regardless of selecting refurbish or not as far as I know.. but perhaps I'm wrong.
if you have root/twrp just zero out the cust partition or simply delete the files inside the cust folder using a file explorer app... and the error msg should go away on next reboot.
this is in the FAQ/Q&A section in the OP of all my stock threads for H850.
if you're on M and must flash a KDZ with refurb option... just use the old LGUP methods. but if you're sticking with TWRP there's not really any need to flash any KDZ.. you can flash whatever in TWRP instead.
Click to expand...
Click to collapse
"and the error msg should go away on next reboot." I get 3 error messages related to this. Will I get rid of all of them?
"old LGUP methods" means tool version 1.11 instead of 1.14? So use version 1.11 for MM and 1.14 for N?!
Unfortunately, refurbish does not work even under MM for me regardless if I use version 1.11 or 1.14.
BTW: The old version 1.11 asks my each time I trigger the refurbish process to "Input new NT code" (the new version does not behave like this). Is my problem maybe caused by this or can this be used to input a working string there?
fuxi222 said:
"and the error msg should go away on next reboot." I get 3 error messages related to this. Will I get rid of all of them?
"old LGUP methods" means tool version 1.11 instead of 1.14? So use version 1.11 for MM and 1.14 for N?!
Unfortunately, refurbish does not work even under MM for me regardless if I use version 1.11 or 1.14.
BTW: The old version 1.11 asks my each time I trigger the refurbish process to "Input new NT code" (the new version does not behave like this). Is my problem maybe caused by this or can this be used to input a working string there?
Click to expand...
Click to collapse
i dont have an H850 so idk.. but any time ive had someone zero cust theyve said errors have gone away. so if they dont for you.. you must be special. try it and find out... then report back. if it doesnt work... ¯\_(ツ)_/¯
old lgup methods = 1.11 + dll msi installer, yes. but i see no reason to use 1.11 simply for refurbish option. most people should be able to use LGUP 1.14 + UPPERCUT for most situations on G4/G5/V20.
i dont know abotu the NT code stuff with LGUP.. again.. I dont have a H850. but if you have TWRP then there's really no need to be messing with LGUP at all unless you want to be 100% stock/unrooted with no TWRP. just zero cust or try flashing the cust.img that's in the folder.
I cant help any more on this NTCode subject without a device that uses it. good luck.
autoprime said:
good info.
I can make it even easier... instead of downloading my 10E COMPLETE ZIP
Just download/flash my 10E BOOTLOADER ZIP. It'll make LGUP work again with M KDZs and the BOOTLOADER ZIP is much smaller!
Click to expand...
Click to collapse
Only if someone is on the same point: For me, it is only working to flash the COMPLETE ZIP! When I flash bootloader only, LGUP does not detect the model type of my device anymore (detected type is "Unknown"). I have tried it now for 2 times with similar results...
BTW: I used this method to get rid of the annoying NT code issue: http://forum.xda-developers.com/showpost.php?p=66957161&postcount=4
@autoprime Can't we just flash 10E with the refubrish option? Somehow I'm unable to get into recovery with the button combination after downgrading and updating again, even though I'm doing it properly and I was able to do it before.
EDIT: So refubrish stopped working now too. Dang. I installed the recovery through Dirty Cow, flashed the bootstack and went back to 10E, but I still don't have a recovery. ;_;
Ok, I've tried everything and button combination for recovery still doesn't work, so think if you really wanna risk being unable to easily factory reset your phone.
autoprime said:
1. I suggested 10E not 10C.. not sure why LGUP 1.14 + UPPERCUT wouldn't see it. But UPPERCUT is geared towards recent devices on recent software. It's possible 10C is too old to fall under the UPPERCUT 1.0.0.0 umbrella.. and you're always welcome to use the older LGUP methods instead.
2. You will always lose TWRP if you boot into Android without patching the boot.img or flashing supersu zip first. The stock system.img has a patch in it which always tries to replace the recovery partition with stock recovery.. and zips like supersu stop such things from happening. The procedure is to flash twrp.. boot into twrp.. flash supersu. flashing twrp then booting into android = no more twrp. this is standard android stuff for awhile now.
3. The refurbish option isn't needed and I've already explained in the UPPERCUT thread that refurbish is not supported. All refurbish option does is force the phone to run a factory reset after KDZ finishes... the user can just run a factory reset manually after the flash to achieve the exact same end result.
Click to expand...
Click to collapse
Well I am trying to flash stock EE rom, which I have the KDZ for.
I am flashing via upgrade, and all that happens is when the phone boots it is unstable, phone app crashing etc.
All settings still intact, no myee app, app from open EU rom still exists, very very strange.
Is it possible to convert a KDZ to a twrp flashable zip as twrp seems far easier.
I suspect if I used refurbish it would fix this issue as upgrade seems to not be clearing everything.
chrcol said:
Well I am trying to flash stock EE rom, which I have the KDZ for.
I am flashing via upgrade, and all that happens is when the phone boots it is unstable, phone app crashing etc.
All settings still intact, no myee app, app from open EU rom still exists, very very strange.
Is it possible to convert a KDZ to a twrp flashable zip as twrp seems far easier.
I suspect if I used refurbish it would fix this issue as upgrade seems to not be clearing everything.
Click to expand...
Click to collapse
Did u try what I suggested in other thread? Wipe internal storage before first boot, reboot recovery afterwards before booting system; are u clean flashing? Are you trying to restore any data at all besides things like messages and call logs?
Going from an openEU.kdz to a branded .Kdz would definitely require a Twrp data format and a recovery reboot, perhaps do all this b4 using LGUP with kdz.
Yes it is possible to make a .zip from a kdz, but it's not a simple process and there is no EE branded 20a.zip
Autoprime already stated that refurbish option can be used if you use LGUP v1.11 instead of latest 1.14 but don't forget the .DLL file. Also all refurbish does is wipe data and internal storage; which can be done via TWRP using the method I mentioned above. Try what I mentioned and then reflash kdz;forget about any data besides text messages just take the extra 30min to resetup device from scratch.
What version of LGUP are you using? Can u give more info be more descriptive about what's happening?
it is resolved now but I was just trying to get it in a good state to return the phone to EE.
Doing a factory reset in twrp didnt work, but what did work is I did a reset from in the rom, and after the reboot it was properly reset.
What was odd is when I wiped system and data manually in twrp that also didnt work.
I think I forgot to check if I completely wiped the internal storage, photos etc. As I was rushing to get the phone to be sent back. But the description for the reset option in android says it does wipe all personal data so hopefully that did it.
How can I downgrade LS992?
İs this possible for lg g5 H860?
For H850 just download H85010i_00_OPEN_EU_OP_0923.kdz flash it with LGUP 1.4(uppercut) after it's finished reset the phone then just flash android 6 firmware that you like.
i have h850 ,
current firmware is v20a updated via fota
no root , no bootloader unlock ,,, compleatlly stock phone
i want to downgreade to any 6.0.1 firmware without losing data (if possible)
if not, what to check and what steps to do without tripping on cust ot drk or modem or .... issues ?
pleas advice me ....
LGUP corrupts whenever i hit Start, but it works just fine with N kdz (mine is 20a). I have tried to flash bootloader but still ended up with the same outcome.
Lucky patcher does not work on nougat. Application not installed. playstore error 504
autoprime said:
good info.
I can make it even easier... instead of downloading my 10E COMPLETE ZIP
Just download/flash my 10E BOOTLOADER ZIP. It'll make LGUP work again with M KDZs and the BOOTLOADER ZIP is much smaller!
Click to expand...
Click to collapse
I rooted H850 following autoprime's LG G5 H850 Bootloader Unlock instruction with autoprime's modded "Minimal ADB and Fastboot" {[ 1.) selecting port 41 in device manager (maybe was not necessary) and 2.) pushing TWRP twrp-3.1.1-0-h850.img 3.)booted into recovery (Using 2 hands.. use one hand/finger to press/hold volume down.. and use the other hand for the power button. Press n hold both buttons.) 4. flashing SuperSU (UPDATE-SuperSU-v2.82-20170528234214.zip) ]}.
Installed 20a with lgup because for a strange (windows 10 folder administrator permission) reason nether UPPERCUT_1.0.0.0.exe nether LGFlashTool.exe worked properly).
Unfortunatly I installed [ROM] [Nougat 7.0] Fulmics ROM 3.3 ◦ v20D ◦ H850 but, because the very big LACK of xposed framework on nougat, I had too much difficulties to patch correctly the core jar with lucky patcher getting a lot of error "app not installed the package appears to be corrupt" and other play store error 504 app not installed.
So I decided to downgrade and leave from any Nougat 7.0 based rom in order to move on Marshmallow 6.0. In particular I used TWRP to wipe everything and flash [STOCK][M] H850 10E OPEN EU ROM autoprime's 10E COMPLETE ZIP then Supersu then framework.
On android this time I skipped google registration and LG software updates with data and wifi OFF.
Then I activated USB debug in developer section
Then I followed these step in that really precise order:
a) installed super su again with twrp (want to be sure to have got ROOT);
b) configure Super Su setting in android to activate pseudo PRO option then uncheck the "separation mount space" in order to share .init;
c) configure Super Su setting giving permission always without asking and also during in boot (to everybody);
d) installed xposed-v87-sdk23-arm64.zip in TWRP
e) installed lucky patcher and using it to unistall every LG apps;
f) activate for the very first time wify in order to update immidiately lucky patcher (update available in lucky patcher settings) than download patch update;
g) installed xposed apk (in android obviosly because I refer to apk pattern) and run it following app procedure for a correct detection of framework then activate Lucky patcher module in xposed apk then reboot to permit lucky patcher using framework;
h) installed busybox (after the check I choose the "smart install").
i) and now I enjoy the freedom that I haven't got in Nougat to test some application before buying them, just to be sure to not waste money for fake apk like voice pro or other expensive one that fools me before so many times. :good:
Update: G5 H850 Genisys Theme 1.3 v10e MM is a great choice for stability and battery life.

Anyone with a rooted Ls997 that's willing to help?

Hoping someone with a rooted Ls997 is willing to help the current rooting effort.
If you are please check out this thread
https://forum.xda-developers.com/v20/help/want-help-rooting-security-patches-t3680397
Thanks
To try an alleviate any fears, there is a near zero percent chance that anything bad will happen to your phone. I say near zero, because things can always go wrong.
With that said, there are only a couple of ways to brick a V20:
* Flash firmware with a lower ARB version than what is burned into your QFPROM
* Flash firmware with a different RSA key than what is burned into your QFPROM
* Wipe your XBL or ABOOT partitions
* Wipe RECOVERY, LAF *AND* SYSTEM all at the same time.
As long as you have a working XBL, ABOOT and RECOVERY you can recover your phone.
What I need is someone with a rooted LS997 that is willing to flash firmware from a model that has a KDZ. I haven't checked yet, but as soon as someone can get me the XBL from the LS997, and I can compare it to the VS995. They seem to be the closest in specs, and have the greatest chance of actually booting -- and that is all we need is for the phone to boot so that it can be rooted. Once rooted, we will put the LS997 firmware back on the phone.
This is the same procedure that I did for rooting the H910 with an H915 KDZ. As far as I know, all LS997s are ARB 0, so even the latest firmware should be rootable if we can find a model's firmware that will boot.
EDIT: ZVA firmware is ARB 1 so you need ZV9 or older.
-- Brian
We just need one. You don't even need to be a "brave" person. Anyone? Tap tap tap........is this mic on????
Please?
Is this post still going on... Also my Sprint LS997 isn't at VZA anymore, its at VZB. Im not sure if that means anything.
Any updates for zva and zvb .....
runningnak3d said:
To try an alleviate any fears, there is a near zero percent chance that anything bad will happen to your phone. I say near zero, because things can always go wrong.
With that said, there are only a couple of ways to brick a V20:
* Flash firmware with a lower ARB version than what is burned into your QFPROM
* Flash firmware with a different RSA key than what is burned into your QFPROM
* Wipe your XBL or ABOOT partitions
* Wipe RECOVERY, LAF *AND* SYSTEM all at the same time.
As long as you have a working XBL, ABOOT and RECOVERY you can recover your phone.
What I need is someone with a rooted LS997 that is willing to flash firmware from a model that has a KDZ. I haven't checked yet, but as soon as someone can get me the XBL from the LS997, and I can compare it to the VS995. They seem to be the closest in specs, and have the greatest chance of actually booting -- and that is all we need is for the phone to boot so that it can be rooted. Once rooted, we will put the LS997 firmware back on the phone.
This is the same procedure that I did for rooting the H910 with an H915 KDZ. As far as I know, all LS997s are ARB 0, so even the latest firmware should be rootable if we can find a model's firmware that will boot.
EDIT: ZVA firmware is ARB 1 so you need ZV9 or older.
-- Brian
Click to expand...
Click to collapse
Hello bro! Appreciate your efforts! Any updates regarding possibility to root ls997 with ARB>0
I'm still using my LG V20 and I really love it and not planning to switch to another phone anytime soon :'(
Yes. If your arb is 0 you can root. There is a thread about it. Sorry don't have link.
https://forum.xda-developers.com/v20/how-to/root-ls997-to-zv9-t3696488
Sorry miss read your post. You said greater then 0. Look for a post that about. LAF. That's where all the action is

Root for H918 10t? Does anybody have boot.img for it?

Been looking around for a while, can we root the H918 10T? Only method right now that I can see is magisk and the Lafsploit, and i dont have a 10T boot.img for that. can we use a 10i boot.img or..?
My bootloader is unlocked, i was going down the path for roothing through Recowvery (https://forum.xda-developers.com/v20/development/h918-recowvery-unlock-v20-root-shell-t3490594) to get TWRP on it, but it seems like recowvery doesnt work for 10t.
My end goal is to just get lineageos on this.
EDIT:
Just ended up rooting with this guide. Follow everything to the letter and dont be intimidated, the guide couldnt have been easier:
https://forum.xda-developers.com/v20/how-to/root-lafsploit-h918-version-t3773443
You do not need any boot.img, just simply downgrade to 10p using a 10p kdz flashed through lgup. DO NOT attempt to flash a 10i boot.img as IIRC 10i is ARB00 and you are on ARB01 and that would leave you with a fancy paperweight. Simply read the lafsploit guide a couple times thoroughly and carefully follow it exactly and by the end of it you will have a rooted H918. I followed it and its been working flawlessly and LOS 15 and the gamma kernel make this V20 perform like crazy.
Good luck.
droidrzr1610 said:
You do not need any boot.img, just simply downgrade to 10p using a 10p kdz flashed through lgup. DO NOT attempt to flash a 10i boot.img as IIRC 10i is ARB00 and you are on ARB01 and that would leave you with a fancy paperweight. Simply read the lafsploit guide a couple times thoroughly and carefully follow it exactly and by the end of it you will have a rooted H918. I followed it and its been working flawlessly and LOS 15 and the gamma kernel make this V20 perform like crazy.
Good luck.
Click to expand...
Click to collapse
Yeah i read through it fully, at first sight it was a little overwhelming but its nothing more than a couple command line functions.
When i initially tried to roll back, i got hit with an anti-rollback through LGUP. Do i need to specifically do a 10p rollback? I did try 10j first last night, and it didnt allow me. thank god i guess. If the rollback to 10p goes through cant i just root through recowvery?
Also, do I need to root to flash new ROMs? I'm not sure how arduino is built, or any other systems for that matter. Does the ROM exist above the root directories (kind of like project treble?) or does the ROM include the root directories, so you can just wipe the whole thing and be done with it?
Ohitstarik said:
Yeah i read through it fully, at first sight it was a little overwhelming but its nothing more than a couple command line functions.
When i initially tried to roll back, i got hit with an anti-rollback through LGUP. Do i need to specifically do a 10p rollback? I did try 10j first last night, and it didnt allow me. thank god i guess. If the rollback to 10p goes through cant i just root through recowvery?
Also, do I need to root to flash new ROMs? I'm not sure how arduino is built, or any other systems for that matter. Does the ROM exist above the root directories (kind of like project treble?) or does the ROM include the root directories, so you can just wipe the whole thing and be done with it?
Click to expand...
Click to collapse
You got hit by ARB because you're attempting to downgrade from ARB01 (10T) to ARB00. Lgup won't allow that. The guide requires you to specifically downgrade to 10P, that is still ARB01 so it will downgrade and then you can proceed with the guide.

LG v20 H918 Stock recovery+rom?

So I just recently wiped all the data on my phone in a rush except TWRP and I want to revert back to stock ROM. But LGUP doesn't recognize my phone when I do use TWRP or fastboot mode. From my research done I need to get stock firmware update back in order to get LG UP to work again? I'm not entirely sure what I'm doing since I'm new to this. Help im noob. no backups too.
I tried this thread:
https://forum.xda-developers.com/v20/how-to/restore-v20-to-100-stock-bricked-devices-t3524903
But... LGUP doesn't see my device as said and KDZ files don't flash on TWRP. I tried doing some random .ZIP files of stock roms which I'm not entirely sure I did correctly.
You dont use TWRP or fastboot with LGUP you use Download mode
me2151 said:
You dont use TWRP or fastboot with LGUP you use Download mode
Click to expand...
Click to collapse
Yes I know that. But TWRP replaced my download mode because whenever I plug in my device and press the UP volume key TWRP showed up instead.
Anyway I fixed it myself so thread close pls. Not sure how to do this.
Whenever you fix your own problems, it's still considered good forum etiquette (to many people including myself) to still offer the solution you came up with so that anyone else reading the thread because they might be having the same issue that you're having would love to get a working solution too.
Anyway, the issue is that the lafsploit method using the USB Linux distro overwrites the laf partition to get TWRP installed on the device. Most people never bother to fix that problem but the solution is to flash the laf_restore.zip file (I got it from another thread but can't find that thread at this moment so I'm just going to host the file on Drive for safekeeping):
https://drive.google.com/open?id=1WkR-6--OpOaRw-W5Wt9BzljIBVvG_kMF
MD5: 976bf936548c6fab4fe04dec43f53fb4
SHA-1: 1c6d509f4f29b65d7e0d3d406e6978caeb43d6a9
After you flash TWRP temporarily on the H918, then update TWRP (flashing the newest version), reboot back into recovery/TWRP and then flash the laf_restore.zip which will restore the laf partition(s) to their proper state - AFTER all this then you should be able to get to Download Mode again normally if you must.
Oh yeah I was sorta thinking about posting my solution last night. Anyway the solution I found was to find a .ZIP file of an older stock ROM like the H91810u using what I used which was TWRP since I didn't know what else to flash it with.
I found the file on this thread IIRC. A lot of the links are dead but the 10u version wasn't for me.
https://forum.xda-developers.com/v20/development/rom-h91810q-stock-rom-twrp-flashable-zip-t3681312
My main concern was to just get stock ROM back. I only wanted stock recovery because that was the only way I knew to flash .KDZ files using LGUP. Although I guess bootloader is still unlocked on my phone. But stock download mode still comes back.
I didn't do anything after that but it seems good enough for me now since I don't turn turn off and on my phone a lot. Till another day.

ls997 crossflash for Oreo

Good day!
I have a V20 Sprint right after DirtySanta. I want rooted Oreo, I live in Europe (sorry for my English) and use a local telecom operator (CDMA2000 1xEV-DO). There are many incomprehensible I did not find it on the forum.
1) Updating which firmware components increases ARB? I.e. aboot, modem etc.
2) How, having an img file or a kdz file, can I find out the ARB version?
3) Does ARB increase when flashing with any of these methods: "partition dl", "fastboot flash", kdzwriter?
4) Can someone share a Sprint V20 Oreo MODEM and SYSTEM dump?
5) Did someone try to cut the leads on motherboard @runningnak3d https://forum.xda-developers.com/t/...t-to-brick-your-phone-for-funsies-v1.3673622/ ?
6) It seems to me that the best option is to use SYSTEM (and MODEM?) from US99620f (US99620f_00_1120.kdz) . Both LS997 and US996 support CDMA2000 1xEV-DO frequency. US996 contains no bloatware. Does only vs995, us996 and ls997 support СDMA and they all have ARB 1 on Oreo?
7) How best to try:
a) Flash (Installing KDZ US996 7.0 via patched LGUP "partition dl" -> Re-installing the same KDZ via "update") LS997 7.0 to US996 7.0; then flash SYSTEM.img US996 8.0 (+ core mk2000 Oreo US996)? If there is no connection, flash MODEM.img US996 8.0?
Or
b) The same without prior full flashing to US996. Which kernel @askermk2000 and TWRP @Phoenix591 in the case of such a "Frankenstein" to use - LS or US? Which kernel is better to use in this case: LS997_v2.1, US996Santa_v2.2 or US996Santa_v2.2-BETA38? Would it make sense to flash the LS997 8.0 modem?
8) What is the best way to flash the SYSTEM and MODEM? kdzwriter, LGUP "dl partition", "fasboot flash"?
Thank you guys for your work and time!
An LS997 on Oreo is on ARB1 and therefore completely locked down and unrootable, so I don't think anyone has made any dumps from it. No idea which specific portion causes the ARB to change.
I would not recommend cross-flashing a modem unless someone else reported it to be working. You have a much higher risk of completely losing all cellular signal. Does your phone in its current state have signal reception problems?
The rootable LS997 on ARB0 is generally assumed to be stuck on Nougat for stock-based ROMs, and I haven't seen anyone try to flash any stock US996 Oreo parts, so that could be quite risky. If you really want Oreo or higher, then you should consider looking at the LineageOS-type ROMs.
For more things on the LS997, I've written up a bunch of general information in this post on the V20 Subreddit.
how to check ARB status?
nevermind, i got it back how do i confirm ARB?
xxTECRAxx said:
how to check ARB status?
nevermind, i got it back how do i confirm ARB?
Click to expand...
Click to collapse
As far as I know, only the H918 (software version H91810p or later, includes all on Oreo) and LS997 (software version LS997ZV8 or later, includes all on Oreo) have ARB enabled. So you don't have to worry about it on any other model, including the US996. Or did you actually cross-flash the US996 Oreo KDZ onto the LS997?
C D said:
As far as I know, only the H918 (software version H91810p or later, includes all on Oreo) and LS997 (software version LS997ZV8 or later, includes all on Oreo) have ARB enabled. So you don't have to worry about it on any other model, including the US996. Or did you actually cross-flash the US996 Oreo KDZ onto the LS997?
Click to expand...
Click to collapse
I did cross flash my LS997 with US996 10f kdz
xxTECRAxx said:
I did cross flash my LS997 with US996 10f kdz
Click to expand...
Click to collapse
Is it 10f or 20f (your screenshots show 20f)? It's certainly interesting to see US996 stock Oreo cross-flashed onto an old LS997 as I have never seen anyone do it before. Do things actually function normally on it?
Anyway, everything's still on ARB0, so you can downgrade any way you like. If you haven't already done so, you'll need to be on 10f in order to do the rooting procedure.
First, I made a backup of all partitions using LGUP. I flashed the unlocked LS997 with US99620f firmware in the "Partition DL" mode via patched LGUP . I have selected all sections except aboot and abootbak. Then, in fastboot mode, I flashed recovery 3.2.2-1. I`ve tried 3.3.1-1, 3.2.3-5, 3.2.3-4, but they can't do format data correctly. Then I flashed modem, modemst1 and modemst2 from the backup in fastboot mode. Then in recovery I flashed the last mk2000 kernel for Oreo - LS997_v2.1-mk2000.zip . Then magisk 19.5
P.S. I need SDMA, so I was flashing the kernel and modem from LS997. For GSM it may not be necessary.
kokos76 said:
First, I made a backup of all partitions using LGUP. I flashed the unlocked LS997 with US99620f firmware in the "Partition DL" mode via patched LGUP . I have selected all sections except aboot and abootbak. Then, in fastboot mode, I flashed recovery 3.2.2-1. I`ve tried 3.3.1-1, 3.2.3-5, 3.2.3-4, but they can't do format data correctly. Then I flashed modem, modemst1 and modemst2 from the backup in fastboot mode. Then in recovery I flashed the last mk2000 kernel for Oreo - LS997_v2.1-mk2000.zip . Then magisk 19.5
P.S. I need SDMA, so I was flashing the kernel and modem from LS997. For GSM it may not be necessary.
Click to expand...
Click to collapse
Very interesting. So all CDMA signal reception from your carrier and all root functions are working?
And did you use TWRP made for the US996 or LS997?
Any particular reason you went with Magisk 19.5 instead of a later version?
Also, there are a few more stock Oreo kernels for the LS997 that you could try (of course they've never really been tested since the regular LS997 on Oreo is unrootable):
- Phoenix591 has converted some of the mk2000 2.2 versions here
- ezzony's ezV2020 kernel also has an LS997 version here
C D said:
Is it 10f or 20f (your screenshots show 20f)? It's certainly interesting to see US996 stock Oreo cross-flashed onto an old LS997 as I have never seen anyone do it before. Do things actually function normally on it?
Anyway, everything's still on ARB0, so you can downgrade any way you like. If you haven't already done so, you'll need to be on 10f in order to do the rooting procedure.
Click to expand...
Click to collapse
it's 20f, not 10f. I had swapped toms to darn near everything on XDA but never happy with any of them. always something not working or I couldn't remove some built-in crap from so-called "stock" roms.
this last go I forget what I was trying to put on it but she stuck in the warning screen and wouldn't boot. i threw so many commands at inside fastboot mode, I am surprised it's not a paperweight. honestly, you name it, I sent it! wipe, format partition, didn't have a concern in the world, and I don't because I have a pixel 4a as the daily driver.
it should be noted, prior to this, I could never get LG Up to work as the app never recognized the phone. after fastboot mode not getting results booting into anything, I said f*ck it and put it into download mode. tiny bit of reading here and shortly after pulling the US996 20f KDZ file from LG, I had a stock RUNNING Oreo!
bro, seriously though, this Oreo runs the best that I've seen! it's smooth and fast! just a little on the heavy side. she's bloated and I need to trim the fat away. LG poisons the phone bad with all their garbage. runs like a champ though
I am extracting stock ls99720a Oreo from ls997 and will test it well before uploading it.

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