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(HELP) LG GFlex 2 LS996 Bootloop in MINI OS after stock firmware flash

Hi it's the first time i post on XDA, i allways found what i need but this time...no solution.
i have an LG LS996 5.0.1 rooted after not possible to do an update.
i unroot the phone, factory reset, update....same resulte
i try to install the stock firmware. XDA Source tot file.....etc
the phone is stock on MINI OS screen for about 1 minute and reboot in the same screen.
i go to sprint, they don't want to replace the phone because the miniOS boot is not lg Bootloader and the unsurance wante me to pay 200$
to get a new one.
any help please.

lambo640 said:
Hi it's the first time i post on XDA, i allways found what i need but this time...no solution.
i have an LG LS996 5.0.1 rooted after not possible to do an update.
i unroot the phone, factory reset, update....same resulte
i try to install the stock firmware. XDA Source tot file.....etc
the phone is stock on MINI OS screen for about 1 minute and reboot in the same screen.
i go to sprint, they don't want to replace the phone because the miniOS boot is not lg Bootloader and the unsurance wante me to pay 200$
to get a new one.
any help please.
Click to expand...
Click to collapse
check this out http://forum.xda-developers.com/showpost.php?p=61530688&postcount=31

Google~Android said:
check this out http://forum.xda-developers.com/showpost.php?p=61530688&postcount=31
Click to expand...
Click to collapse
Big thank you.
worked very well.
my phone is alive again.

lambo640 said:
Big thank you.
worked very well.
my phone is alive again.
Click to expand...
Click to collapse
no issue... thats what xda is for....now its up to you to help someone else if its within ur knowledge and always hit thanks button... it makes ppl even more helpful cheers to you..ive been in ur shoes...it such a relief once its workin

yay my post was reffered too as well glad it worked, but also give stank0 credit too if it wasnt for him i wouldnt of had fixed it

MasterSe7en said:
yay my post was reffered too as well glad it worked, but also give stank0 credit too if it wasnt for him i wouldnt of had fixed it
Click to expand...
Click to collapse
i have a question for you...i have g3 and i can upgrade, dowgrade whenever i please with kdz witout a hitch or hint of bricking it or getting qhusb bulk 9008?? is it that much more complicated?? is this tougher to downgrade?? why do ppl brick? thanks.

Google~Android said:
i have a question for you...i have g3 and i can upgrade, dowgrade whenever i please with kdz witout a hitch or hint of bricking it or getting qhusb bulk 9008?? is it that much more complicated?? is this tougher to downgrade?? why do ppl brick? thanks.
Click to expand...
Click to collapse
ok ill explain the best i can for you.
Lets say for example that the bootloader was unlocked for the flex 2, if we downgraded with the current method that I did, then youll end up with a brick BECAUSE...after the 5.1.1 update, the bootloader was also updated, but if we had an unlocked bootloader, it would be no problem because then you can get right into fastboot since the bootloader is unlocked. however the reason my flex 2 bricked was because you cant downgrade bootloaders unless there is a specific way to do so, and if its unlocked...well since mine wasnt on the flex 2, when i flashed the TOT from ZV5 OVER a ZV6 bootloader, the rest of the partitions flashed, except for the bootloader end of it because it returned a "Version on phone is currently newer than the one being flashed" and declined the flash, since ZV5 wasnt build around the ZV6 bootloader, it doesnt know how or what to boot..
thats just a simple version, going into specifics is the Devs department, but in lamen terms, thats whats going on..if we had an unlocked bootloader it wouldnt be an issue because we could flash an older bootloader without the phone rejecting it. but once root is achieved on 5.1.1 then there will be a way to restore the FLex 2, the G3 you have although it may not have an unlocked bootloader, its been out for long enough to where exploits have been discovered, but if youre referring to upgrading and downgrading on Custom Roms, thats not the same thing, its only for official TOT's and KDZs or Official LG Firmware.
it would be like trying to flash a sprint variant with a tmobile rom....its just not built for it, its like having a Ford mustang with a V6 and trying to put a V8 motor in it without changing the computer/wire harness etc. it will fit...but it just wont work.
did that help for you to understand?

MasterSe7en said:
ok ill explain the best i can for you.
Lets say for example that the bootloader was unlocked for the flex 2, if we downgraded with the current method that I did, then youll end up with a brick BECAUSE...after the 5.1.1 update, the bootloader was also updated, but if we had an unlocked bootloader, it would be no problem because then you can get right into fastboot since the bootloader is unlocked. however the reason my flex 2 bricked was because you cant downgrade bootloaders unless there is a specific way to do so, and if its unlocked...well since mine wasnt on the flex 2, when i flashed the TOT from ZV5 OVER a ZV6 bootloader, the rest of the partitions flashed, except for the bootloader end of it because it returned a "Version on phone is currently newer than the one being flashed" and declined the flash, since ZV5 wasnt build around the ZV6 bootloader, it doesnt know how or what to boot..
thats just a simple version, going into specifics is the Devs department, but in lamen terms, thats whats going on..if we had an unlocked bootloader it wouldnt be an issue because we could flash an older bootloader without the phone rejecting it. but once root is achieved on 5.1.1 then there will be a way to restore the FLex 2, the G3 you have although it may not have an unlocked bootloader, its been out for long enough to where exploits have been discovered, but if youre referring to upgrading and downgrading on Custom Roms, thats not the same thing, its only for official TOT's and KDZs or Official LG Firmware.
it would be like trying to flash a sprint variant with a tmobile rom....its just not built for it, its like having a Ford mustang with a V6 and trying to put a V8 motor in it without changing the computer/wire harness etc. it will fit...but it just wont work.
did that help for you to understand?
Click to expand...
Click to collapse
Ya i understand that part... Ive dealt with bricked phones... Ive recovered all but one.... Why are some able to downgrade though... In another thread soomeones says hes gone back aand forth a couplw times... Thats why i was confused..

So there's no way to root the Sprint lg g flex 2 (ls996) once it's on 5.1.1? Because we can't downgrade right? Wish I knew this before I bought one off Swappa.
Sent from my 831C using Tapatalk

Toyeboy said:
So there's no way to root the Sprint lg g flex 2 (ls996) once it's on 5.1.1? Because we can't downgrade right? Wish I knew this before I bought one off Swappa.
Sent from my 831C using Tapatalk
Click to expand...
Click to collapse
Be patient it will come with time trust me
Google~Android said:
Ya i understand that part... Ive dealt with bricked phones... Ive recovered all but one.... Why are some able to downgrade though... In another thread soomeones says hes gone back aand forth a couplw times... Thats why i was confused..
Click to expand...
Click to collapse
Same here ga just takes time, someone will do it, maybe even me time will tell but I need to tape restore the laf partition somehow, so I need a dump from a zv6

MasterSe7en said:
Be patient it will come with time trust me
Click to expand...
Click to collapse
Yeah I don't regret buying the g flex 2 considering I got it for $260 on Swappa. Really happy I got top of the line hardware for this price. I'm sure root will come or maybe a way to unlock bootloader so we can downgrade.
Sent from my 831C using Tapatalk

MasterSe7en said:
Be patient it will come with time trust me
Same here ga just takes time, someone will do it, maybe even me time will tell but I need to tape restore the laf partition somehow, so I need a dump from a zv6
Click to expand...
Click to collapse
My flex 2 us995 was stuck at logo after alot of search i didnt find any thing but ls996 tot. So itried on it and after alot of tries i managed to get rid of this issue. Now i am using sprint ls996 5.0.1 over us995. I m gettting notification of 5.1 sprint update but after downloading the update i am unable to flash it. It fails in recovery. I manually downloaded update and tried to flash it but no success... Any solution to it.

muzammil457 said:
My flex 2 us995 was stuck at logo after alot of search i didnt find any thing but ls996 tot. So itried on it and after alot of tries i managed to get rid of this issue. Now i am using sprint ls996 5.0.1 over us995. I m gettting notification of 5.1 sprint update but after downloading the update i am unable to flash it. It fails in recovery. I manually downloaded update and tried to flash it but no success... Any solution to it.
Click to expand...
Click to collapse
are you rooted or completely stock?

MasterSe7en said:
are you rooted or completely stock?
Click to expand...
Click to collapse
I was rooted earliar via kingo root. Then i unroot it from supersu menu. I checked via root checker app it says no proper root found. May be this is the issue...do i need properly unrooted phone for 5.1 update??
How can i unroot it completly without flashing again...

join me on hangout +919999964499 because my g flex2 also got stuck in minios.
The process is a bit confusing so you need to contact me.
lambo640 said:
Hi it's the first time i post on XDA, i allways found what i need but this time...no solution.
i have an LG LS996 5.0.1 rooted after not possible to do an update.
i unroot the phone, factory reset, update....same resulte
i try to install the stock firmware. XDA Source tot file.....etc
the phone is stock on MINI OS screen for about 1 minute and reboot in the same screen.
i go to sprint, they don't want to replace the phone because the miniOS boot is not lg Bootloader and the unsurance wante me to pay 200$
to get a new one.
any help please.
Click to expand...
Click to collapse

shubhdixit2241 said:
The process is a bit confusing so you need to contact me.
Click to expand...
Click to collapse
could you give instructions? no button combo gets me out of it???
edit..i dnt have google hangouts...

Root/downgrade options for H81020n

I had to make an insurance claim on my AT&T G3 recently and they sent me a G4 Android 6.0 / h81020n, build MRA58k. From what I understand, there's no way to root it and many don't expect there will be for a while...is that right? If so, what are my best options to downgrade and then root it? It's my only phone, and though I'm extremely competent with this stuff, I need to be sure it's a surefire method of downgrading. Thanks

noamo48 said:
I had to make an insurance claim on my AT&T G3 recently and they sent me a G4 Android 6.0 / h81020n, build MRA58k. From what I understand, there's no way to root it and many don't expect there will be for a while...is that right? If so, what are my best options to downgrade and then root it? It's my only phone, and though I'm extremely competent with this stuff, I need to be sure it's a surefire method of downgrading. Thanks
Click to expand...
Click to collapse
As of now, I'm going to be bold with my statement about the G4: The AT&T cannot and will not ever have an unlocked bootloader. I would also assert the likelihood of root on Marshmallow is slim to none. I'd say "none", except there's always a remote chance that someone with the time/money/know-how will decide not to give up until they've figured it out.
When you say "downgrading", I presume you mean going back to a previous build? If so, it is not possible. It would require the level of access that only an unlocked bootloader could provide, from what I understand. I think there was mention of some sort of bypass option that works on other devices, but it doesn't work with this one.
Long story short: get comfortable with your current experience, because it isn't likely to ever change with this device. I too had to replace my device under warranty (for the 2nd time), and was bummed when the replacement arrived having Marshmallow on it.

noamo48 said:
I had to make an insurance claim on my AT&T G3 recently and they sent me a G4 Android 6.0 / h81020n, build MRA58k. From what I understand, there's no way to root it and many don't expect there will be for a while...is that right? If so, what are my best options to downgrade and then root it? It's my only phone, and though I'm extremely competent with this stuff, I need to be sure it's a surefire method of downgrading. Thanks
Click to expand...
Click to collapse
I have not been able to downgrade H81020n since I got a replacement phone due to the infamous bootloop issue. I'm starting to wonder if somehow AT&T with or without support of LGE figured out which phones were rooted and injected some network packets to stress the radios in this device causing failures.
What's really unfortunate is the replacement devices all come with Marshmallow 6.0 on the H81020n ROM. That locked-down image, with the locked bootloader have made this device much less fun.
I've tried several downgrade paths with no success; the low-effort Root method, TOT downgrades with the LG flash utility, and good old fashioned send_commands.exe for image restoration to stock.

You need to use LGUP
http://forum.xda-developers.com/showpost.php?p=66316842&postcount=113

smknutson said:
You need to use LGUP
http://forum.xda-developers.com/showpost.php?p=66316842&postcount=113
Click to expand...
Click to collapse
I have LGUP and the .tot file. LGUP just won't allow me to flash it for some reason ?....
Sent from my LG-H810 using XDA-Developers mobile app

BTMoneyGang said:
I have LGUP and the .tot file. LGUP just won't allow me to flash it for some reason ?....
Sent from my LG-H810 using XDA-Developers mobile app
Click to expand...
Click to collapse
Did you load the.tot, close the LGUP program then reopen it and attempt the flash?
Did you change the Port # in Device Manager?

Can the same downgrade be done on 21y for h810 I miss root

New Update today

Got a new update today. Looks like it is only security patches
New software version is H90021w
Build is MRA58K
Security patch level is 2016-09-01
Security Software Versino MDF V2.0 Release 2
Still android 6.0

silentmage said:
Got a new update today. Looks like it is only security patches
New software version is H90021w
Build is MRA58K
Security patch level is 2016-09-01
Security Software Versino MDF V2.0 Release 2
Still android 6.0
Click to expand...
Click to collapse
This is the update that patches the quadroot vulnerabilities.

Can't get this update
Guys i can't get this update how can i update my lg v10 on this version current version is h90020j

download link
http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW966RO7520CAX5D10ACLO6/WEB_H90021w_00_0921.kdz

Info please
Thanks man I only want to know how to install this on my phone any tutorial for that if possible because I am new to this thing and i want to know after installing that will my phone get rooted or it will not
Thanks in advance

download the above kdz.. download & install "LG UP"..connect your phone thru USB (im assuming u have LG usb drivers installed & ur pc detects it perfectly)
open LG UP.. select the kdz file
Select "UPGRADE" & execute... 10-15 min for installation & another 15-20 for booting up.
fahadkhan1993 said:
Thanks man I only want to know how to install this on my phone any tutorial for that if possible because I am new to this thing and i want to know after installing that will my phone get rooted or it will not
Thanks in advance
Click to expand...
Click to collapse

Thanks for the help it worked
zahidb said:
download the above kdz.. download & install "LG UP"..connect your phone thru USB (im assuming u have LG usb drivers installed & ur pc detects it perfectly)
open LG UP.. select the kdz file
Select "UPGRADE" & execute... 10-15 min for installation & another 15-20 for booting up.
Click to expand...
Click to collapse
Thanks for your help man this helped me and my phone updated.:good::good::good::good::good::good:
I want to ask one more thing what will happen if I select the refurbish option in LG UP tool??

Try it... Maybe it deletes user data
Sent from my LG-F300L using XDA-Developers mobile app

Guys, I purchased an unlocked AT&T LG V10. It's currently running h90020j. I haven't received any ota updates yet.
My concern is that if I flash the new software version, will my phone get locked again? I use Etisalat SIM card in it.

i want to update my Unlocked AT&T LG V10 to the latest update H90021W. i tried using lg bridge but it prompts me to update from the update center from the phone itself. when i try to update from the phone, it shows "Device is up to date".
my question is that if i update via flashing the firmware file, will my device be relocked by AT&T? i live outside USA and Etisalat as my carrier. i have already downloaded the .kdz file for v21w software. i worried whether the device will get relocked by AT&T. help me out guys.
also i am getting a pretty poor battery out of my V10. wondering whether the new update would give me a better battery life.

zahidb said:
Try it... Maybe it deletes user data
Sent from my LG-F300L using XDA-Developers mobile app
Click to expand...
Click to collapse
i want to update my Unlocked AT&T LG V10 to the latest update H90021W. i tried using lg bridge but it prompts me to update from the update center from the phone itself. when i try to update from the phone, it shows "Device is up to date".
my question is that if i update via flashing the firmware file, will my device be relocked by AT&T? i live outside USA and Etisalat as my carrier. i have already downloaded the .kdz file for v21w software. i worried whether the device will get relocked by AT&T. help me out guys.
also i am getting a pretty poor battery out of my V10. wondering whether the new update would give me a better battery life.

Mine didnt get unlocked....try it
Sent from my LG-F300L using XDA-Developers mobile app

Sim card error
After updating my V10 to 21w my phone is not detecting any sim card can any one help ?
Thanks

fahadkhan1993 said:
Guys i can't get this update how can i update my lg v10 on this version current version is h90020j
Click to expand...
Click to collapse
dont update otherwise u will face many errors ... im facing alot from last 1 months still searching salutation
---------- Post added at 01:41 AM ---------- Previous post was at 01:39 AM ----------
zohaib anwar said:
i want to update my Unlocked AT&T LG V10 to the latest update H90021W. i tried using lg bridge but it prompts me to update from the update center from the phone itself. when i try to update from the phone, it shows "Device is up to date".
my question is that if i update via flashing the firmware file, will my device be relocked by AT&T? i live outside USA and Etisalat as my carrier. i have already downloaded the .kdz file for v21w software. i worried whether the device will get relocked by AT&T. help me out guys.
also i am getting a pretty poor battery out of my V10. wondering whether the new update would give me a better battery life.
Click to expand...
Click to collapse
nothing will be happend but u will loss fingerID. IM ALSO using AT&T IN DUBAI and i update it to MM and now im facing lots of error

zohaib anwar said:
i want to update my Unlocked AT&T LG V10 to the latest update H90021W. i tried using lg bridge but it prompts me to update from the update center from the phone itself. when i try to update from the phone, it shows "Device is up to date".
my question is that if i update via flashing the firmware file, will my device be relocked by AT&T? i live outside USA and Etisalat as my carrier. i have already downloaded the .kdz file for v21w software. i worried whether the device will get relocked by AT&T. help me out guys.
also i am getting a pretty poor battery out of my V10. wondering whether the new update would give me a better battery life.
Click to expand...
Click to collapse
I have updated to H90021W months ago it went smooth and error free. all my data was kept in tact and I have face 0 issues since then. I hope they find a way to get the kdz file for the future updates. Also no it shouldn't relock the device mine was unlocked when it updated and stayed unlocked.

H90022b Software update,October 12, 2017

I just upgraded two ATT LG V10 to H90022b released on 10/12/2017.
I thought it's just security patch but somehow I feel both get snappier.
And power seems improved a little bit. But I am not sure... maybe it's because it reinstalled all apps during upgrading ?
anyone has any issue or any improvement after upgrading to H90022b ?

ajutama si pe mine te rog frumos cu ultimul firmware lg h900
---------- Post added at 01:32 PM ---------- Previous post was at 01:28 PM ----------
am probleme de securitate dupa update android 6 pe lg h900
am nevoe de firmware ATT LG V10 la H90022b si nu stiu de unde sa downlandez
poate daca fac update la lg h900 cu H90022b mi se va rezolva problema

Have 2-week-old Lg v10 H900, new, unlocked. It would not upgrade with LG Bridge or OTA, saying "device may be rooted". So went online and found Marshmallow KDZ file and uploaded to phone. It shows the Marshmallow is up but now I get errors like "com.android.settings has stopped", "LG VPN has stopped", and "lock screen settings has stopped". I cannot configure/initiate fingerprint scanner, and device reboots when I uninstall an app.
I have cleared all caches and reset to factory (recommended by LG tech help...waiting for additional solutions from them), all to no avail.
Any ideas??

I have the same problem I am facing the same error in setting app if you fix these
If you fix these error please help me out

can someone with this update share it please as some of are not getting the update ota.

wow, it's been a year.. not solution yet? i wish i had this read these threads before updating to MM ...

Me too..
Wish someone with H90022b is generous enough to extract the partitions of the device so we can flash it using Qfill. As long as I have the device, I promise to do my best to provide the other files such as the loader and xml files.
I dont really understand the purpose of these partitions, so we need all except modemst1 modemst2 fsg (where imei is stored), cache, and of course no userdata. The total size will be around 4GB but will be around 2GB compressed.
No harm but will help a lot for many of us.
If anybody wants to help but not sure what to do, feel free to contact me.
Thank you!

ardian1899 said:
Me too..
Wish someone with H90022b is generous enough to extract the partitions of the device so we can flash it using Qfill. As long as I have the device, I promise to do my best to provide the other files such as the loader and xml files.
I dont really understand the purpose of these partitions, so we need all except modemst1 modemst2 fsg (where imei is stored), cache, and of course no userdata. The total size will be around 4GB but will be around 2GB compressed.
No harm but will help a lot for many of us.
If anybody wants to help but not sure what to do, feel free to contact me.
Thank you!
Click to expand...
Click to collapse
Problem with extracting partitions once on 22b would probably require root (at least for methods that I know of, such as Wanam's 'Partitions Backup & Restore'. Besides, most users who rooted it on lollipop never upgraded the software, users who would have 22b installed can't achieve root, and developers who could really help with this have already moved on. I just bought the AT&T version of this phone to use with the $10 Unreal Mobile unlimited monthly plan and realized that there is no root after MM update. I could live without root but I am also stuck with outdated 21z.

Android# said:
Problem with extracting partitions once on 22b would probably require root (at least for methods that I know of, such as Wanam's 'Partitions Backup & Restore'. Besides, most users who rooted it on lollipop never upgraded the software, users who would have 22b installed can't achieve root, and developers who could really help with this have already moved on. I just bought the AT&T version of this phone to use with the $10 Unreal Mobile unlimited monthly plan and realized that there is no root after MM update. I could live without root but I am also stuck with outdated 21z.
Click to expand...
Click to collapse
Fortunately there's another way.
We have to get the phone to Qualcomm 9008 mode.
There are 2 safe way to do it, I said safe because I did both a thousand times (hyperbolic, lol) without any problem or effect to the phone if it just "reading/extracting".
The 1st way is to connect 2 points on the board while connecting the usb cable to the computer. Of course the board need to be taken out from the phone.
I understand if the 1st way may not comfortable enough for some, then the 2nd way is using a deep flash cable, which is an easy mod to a spare usb cable.
If I have a 21z or 22b device, I can create these files in less than an hour and potentially help many 90021w user.
Both may not an easy thing to do. So will be great if anyone willing to lend a hand.

ardian1899 said:
Fortunately there's another way.
We have to get the phone to Qualcomm 9008 mode.
There are 2 safe way to do it, I said safe because I did both a thousand times (hyperbolic, lol) without any problem or effect to the phone if it just "reading/extracting".
The 1st way is to connect 2 points on the board while connecting the usb cable to the computer. Of course the board need to be taken out from the phone.
I understand if the 1st way may not comfortable enough for some, then the 2nd way is using a deep flash cable, which is an easy mod to a spare usb cable.
If I have a 21z or 22b device, I can create these files in less than an hour and potentially help many 90021w user.
Both may not an easy thing to do. So will be great if anyone willing to lend a hand.
Click to expand...
Click to collapse
per your request I have taken screenshot of the service menu and uploading as attachment with this post.

Android# said:
per your request I have taken screenshot of the service menu and uploading as attachment with this post.
Click to expand...
Click to collapse
Hello,
Thank you for your efforts. Sorry I was a bit busy these days.
Initially I'm trying to get my luck by googling up what I see on your screenshots, but no luck.
Now I'm still trying to get a script to copy the phone's partitions. Seems like will taking a while.
I'll let you know if it's ready, hopefully won't be long.
Thank you again!

ardian1899 said:
Hello,
Thank you for your efforts. Sorry I was a bit busy these days.
Initially I'm trying to get my luck by googling up what I see on your screenshots, but no luck.
Now I'm still trying to get a script to copy the phone's partitions. Seems like will taking a while.
I'll let you know if it's ready, hopefully won't be long.
Thank you again!
Click to expand...
Click to collapse
You welcome. I also tried to download a kdz for my firmware by using LG Bridge's 'update error recovery' option but it gives me error that "Your phone information cannot be checked. For more information, contact LG customer service". But if i use just 'Software Update' it tells me that I can update to latest version "V21W_00" through update center settings in my phone. I think that LG Bridge database only have up to V21W as the latest OS for LG H900 and it doesn't recognize that my phone has more updated version, so even if someone had Nougat they got OTA, they wouldn't be able to use LG Bridge or PC Suite to help us this way.
I am just tired of this phone and gonna sell it and buy a T-Mobile version. Good luck to you, hope you find a way to upgrade software on your phone.

Android# said:
You welcome. I also tried to download a kdz for my firmware by using LG Bridge's 'update error recovery' option but it gives me error that "Your phone information cannot be checked. For more information, contact LG customer service". But if i use just 'Software Update' it tells me that I can update to latest version "V21W_00" through update center settings in my phone. I think that LG Bridge database only have up to V21W as the latest OS for LG H900 and it doesn't recognize that my phone has more updated version, so even if someone had Nougat they got OTA, they wouldn't be able to use LG Bridge or PC Suite to help us this way.
I am just tired of this phone and gonna sell it and buy a T-Mobile version. Good luck to you, hope you find a way to upgrade software on your phone.
Click to expand...
Click to collapse
I read somewhere that after 21w, at&t keep the firmware on their server, maybe that's why the only way to update is through OTA.
When will you sell the phone approximately? I may finish the script before it..

Maybe it will change something if we get the H90022b .. i'm little skeptical though. Because our issues with H900 MM started because we Flashed a H900 ROM over a H901 or VS990 board. the way i see it, even if AT&T releases Nougat, we still gonna have issues, even worse.. we kinda screwed..
i've been thinking, maybe the H90021w was somehow corrupted or missing some files...
Also, i've been reading some threads, people talking about reflashing the correct ROM, either a H901 or VS990 ... but i'm not ready to dry that considering none has done that succesfully..
For me, the solution would be find a solution to go back to Lolipop... at least it no issues. outdated maybe, but everuthing was working fine on my phone.
https://cdn-cf-3.xda-developers.com/images/smilies/cool.gif

Going back to Lollipop is not possible because of antirollback. And I dont think if there's anybody ever found code board H900 on the pcb. Eventhough it seems not right but vs990 is the correct pcb board, it just the bad firmware (v21w). And there's no KDZ or TOT newer than v21w around as far as I know.
I think I found the solution, but I need a volunteer with v21z or v22b firmware on his phone

Android# said:
You welcome. I also tried to download a kdz for my firmware by using LG Bridge's 'update error recovery' option but it gives me error that "Your phone information cannot be checked. For more information, contact LG customer service". ....
Click to expand...
Click to collapse
Here is the test point. Is it visible?

can anyone please post H90022b kdz file or something newer?

how do i update/ convert my v20???

i just ordered an lg v20 at&t model, and would like to know how to either update it or convert it to the unbranded version, as I am from the UK. Is it also possible it can be done without root, and by just using the software flashing tool?
thanks

sol.j146 said:
i just ordered an lg v20 at&t model, and would like to know how to either update it or convert it to the unbranded version, as I am from the UK. Is it also possible it can be done without root, and by just using the software flashing tool?
thanks
Click to expand...
Click to collapse
Yeah, grab yourself the modded version of LGUP, download the KDZ (Most likely US996) and flash it. No root involved.

I'm in the same boat as the OP, in the UK.
I broke my International version HD990DS which I've had for a couple of years, and scored a replacement H910 on ebay (£115, sealed in box, 2019 date on battery). I received it this morning.
I wasn't aware when I bought it that it was an AT&T brand (unlocked), on Android 7, and un-updateable OTA here in the UK.
The kdz I'm downloading is 'US99620f_00_1120.kdz' from here: https://www.mylgphones.com/unlocked-lg-v20-us996-received-oreo-update-us99620f.html
Should this be good to go? I'm not aware what bands this enables. The bands EE use here are 1,3,7 & 20.
Is there a 'better' kdz I should be downloading?
TIA.
[edit] further to the above, for any UK EE users, the page here gives EE APN details which will need inputting if your phone isn't going to be a wifi only paperweight. Other operators and phones are listed in the site:
https://apn-uk.gishan.net/en/apn/ee/lg-v20
In this page you'll note EE does not support the H915 for 4G at all.
The H910 isn't listed, but it is supported for 4G by EE.[/edit]

Excudent said:
Yeah, grab yourself the modded version of LGUP, download the KDZ (Most likely US996) and flash it. No root involved.
Click to expand...
Click to collapse
Modded LGUP says : "Error:KDZ file is invalid' H910->US996"
I wish it had been that simple....
Anyone any pointers?

stateit said:
Modded LGUP says : "Error:KDZ file is invalid' H910->US996"
I wish it had been that simple....
Anyone any pointers?
Click to expand...
Click to collapse
to flash cross model use partition dl mode, select all partitions. iirc
(not applicable to you specifically, but as a reminder to anyone else who reads this)
Remember, never ever flash (T-mobile) H918 firmware on anything but an H918, and if you have an H918 never ever flash another model's firmware. Instant permanent brick.

Thanks for your input. I'll give it a go tonight.
With LGUP does "DUMP" fo a restorable backup?
I've not used LGUP before a couple of days ago. I used to use Odin a lot, but that was years ago (see my forum join date...)
[edit] OK, I've found what I need to know about LGUP here: https://9to5lg.com/lgup-1-15-manual-how-to-unbrick-restore-your-lg-devices-with-lgup/ [/edit]

stateit said:
Thanks for your input. I'll give it a go tonight.
With LGUP does "DUMP" fo a restorable backup?
I've not used LGUP before a couple of days ago. I used to use Odin a lot, but that was years ago (see my forum join date...)
[edit] OK, I've found what I need to know about LGUP here: https://9to5lg.com/lgup-1-15-manual-how-to-unbrick-restore-your-lg-devices-with-lgup/ [/edit]
Click to expand...
Click to collapse
Did you manage to get oreo on H910? My mother has a H910 stuck in Nougat, but I'd like her to get the oreo update without having to mess with root or anything hard for her to use.

Not yet... I'm waiting until I've had the crap annoyed out of me enough before I invest the few hours time to put everything back on this phone that I want.
As all partitions have to be rewritten then its a case of starting from a totally fresh phone. Which is a chore that I'll do sometime, but not until this week at least is of the way....

Salvaparalyzer said:
Did you manage to get oreo on H910? My mother has a H910 stuck in Nougat, but I'd like her to get the oreo update without having to mess with root or anything hard for her to use.
Click to expand...
Click to collapse
Lgup patched linked above using partial download you can load Oreo from us996 or h915. H915 = H910 only Canadian version with respective network software.

Salvaparalyzer said:
Did you manage to get oreo on H910? My mother has a H910 stuck in Nougat, but I'd like her to get the oreo update without having to mess with root or anything hard for her to use.
Click to expand...
Click to collapse
I'm using H91520a_00_RGS_CA_OP_0717.kdz
Downloaded from LG-Firmwares here: https://lg-firmwares.com/downloads-file/...
IIRC it was the world's slowest download, reminiscent of using a dial-up modem (well, almost).
The H915 is the canadian version of the US H910, so no worries about hardware incompatibilities
Update in patched LGUP (using 'partitions.dl' option) took about 5 minutes and was painless (one warning screen popped up at start of f/w update process in LGUP saying USB was disconnected, but I ignored this throughout the update and left it showing) .
APN numbers need to be added
I backed up data (phone logs, messages etc) first in LG Mobile Switch app first, saving to SD Card. Which I took out of the phone first before the update 'just in case'.
No more AT&T crap, and Android 8.0.0, which is back to how my last V20 990DS was before I broke it (water damage).
It's a bargain phone for £120 on eBay. Good luck!