Database Users

Stock Recovery, No Root, Model Number Prevents Flash To Stock

Over the years I've always been good at solving these things, but this is the first time I've every had to request help/guidance.
LG
1. Came from from 4.4.2, ioroot rooted, installed twrp via freegee, but not the kernel patch. This prevented me from booting back into Android.
2. Factory reset everything, wiped everything from twrp.
3. Ran adb commands here:http://forum.xda-developers.com/showthread.php?t=2451696 Got me into fastboot.
4. Flashed all .img files for LG D800 from prime's D800 img stash. Fastboot rebooted.
5. Installed Mahndi ROM via adb. Reboot
6. Stuck. Phone hangs on LG logo, loading modem and com drivers in windows. Recovery is now stock, so no flashing. Download mode works but always get a "Device Model is different" error at 0% when flashing from LG Flash Tools. Correct .tot and correct .dll for D800.
Any help or ideas to get my G2 up and running again would be amazing. I'm still trying to figure out if I can modify the .tot to match my device's current model or just ignore it and overwrite (best hope). Even if i can get ubuntu to detect the phone that would lit my spirits.
Thanks.

Progress
So I have actually figured out the problem completely, yet I do not yet have a solution.
-I after flashing the correct .img over to my device, I was all set to go, but read somewhere about flashing over mahdi ROM.
-I successfully flashed Mahdi, but DID NOT FLASH THE DEVICE VERSION PATCH (literally hit my head on the desk when I realized).
-I panicked after it did not work and reflashed all the .img so I was stuck with stock recovery, no adb, no sideload, no fastboot.
Is there ANY WAY to flash back to stock with the LG Flash Tool for the ATT D800 that ignores the model number inconsistency. This type of phone only supports the .TOT method of flashing. There is no other way (KDZ = NO). Currently my device's build.prop says that the model is "g2" (this is what the patch was supposed to fix) and my flashing file/.dll is for "D800".
My device can not be seen in Ubuntu.
Any suggestions?

datdude_tc said:
So I have actually figured out the problem completely, yet I do not yet have a solution.
-I after flashing the correct .img over to my device, I was all set to go, but read somewhere about flashing over mahdi ROM.
-I successfully flashed Mahdi, but DID NOT FLASH THE DEVICE VERSION PATCH (literally hit my head on the desk when I realized).
-I panicked after it did not work and reflashed all the .img so I was stuck with stock recovery, no adb, no sideload, no fastboot.
Is there ANY WAY to flash back to stock with the LG Flash Tool for the ATT D800 that ignores the model number inconsistency. This type of phone only supports the .TOT method of flashing. There is no other way (KDZ = NO). Currently my device's build.prop says that the model is "g2" (this is what the patch was supposed to fix) and my flashing file/.dll is for "D800".
My device can not be seen in Ubuntu.
Any suggestions?
Click to expand...
Click to collapse
over here http://androtransfer.com/AndroidUser00110001/ROM/G2/KK/D80220a/ there is a dll named lgup_8974.dll which is for d800 and is supposed to skip the model check

datdude_tc said:
Over the years I've always been good at solving these things, but this is the first time I've every had to request help/guidance.
LG
1. Came from from 4.4.2, ioroot rooted, installed twrp via freegee, but not the kernel patch. This prevented me from booting back into Android.
2. Factory reset everything, wiped everything from twrp.
3. Ran adb commands here:http://forum.xda-developers.com/showthread.php?t=2451696 Got me into fastboot.
4. Flashed all .img files for LG D800 from prime's D800 img stash. Fastboot rebooted.
5. Installed Mahndi ROM via adb. Reboot
6. Stuck. Phone hangs on LG logo, loading modem and com drivers in windows. Recovery is now stock, so no flashing. Download mode works but always get a "Device Model is different" error at 0% when flashing from LG Flash Tools. Correct .tot and correct .dll for D800.
Any help or ideas to get my G2 up and running again would be amazing. I'm still trying to figure out if I can modify the .tot to match my device's current model or just ignore it and overwrite (best hope). Even if i can get ubuntu to detect the phone that would lit my spirits.
Thanks.
Click to expand...
Click to collapse
I have almost the exact same problem will keep an eye on thread, hope we git it sorted soon!

I'll Take a look
XxZombiePikachu said:
over here http://androtransfer.com/AndroidUser00110001/ROM/G2/KK/D80220a/ there is a dll named lgup_8974.dll which is for d800 and is supposed to skip the model check
Click to expand...
Click to collapse
Thanks!
I have seen and downloaded that one before, and if I recall correctly, I didn't get a model error, but rather something else. I believe it was a bin file error??, but I do not recall. I actually just sent my G2 in on a warranty claim (*please oh please don't notice I replaced the screen") and hopefully that will take care of it. I was just posting so that maybe someone doesn't have to dig through 350 pages of replies to find out what happened. I'll keep the post going when I find anything out though.

Working together!
MRobbo80 said:
I have almost the exact same problem will keep an eye on thread, hope we git it sorted soon!
Click to expand...
Click to collapse
I won't have my phone available for a few days. Any chance you could go ahead and give that lgup_8974.dll a test run and report back? I'd be more than willing to help do any research if it gives a different error besides the model.

Sorry to dig up this thread, but I have the exact same problem, except I flashed mahdi on my D802 and somehow the version patch didnt flash correctly. Is there anything like a lgup_8974.dll for D802s?
I'm really desperate here.

i have the exact same problem!!
Any solution found yet??

HELP!!! My LG V20 Says Firmware Update And Won't Load

I just purchased a LG V20 for $150, but it has one problem. It says Firmware Update now waiting for any connection. It has an error code or something below it with 633A B50. I can only go into a few of the boot menues. I can't turn on ADB, and i can't access recovery or download mode. WHAT CAN I DO, PLEASE HELP.

tms1003 said:
I just purchased a LG V20 for $150, but it has one problem. It says Firmware Update now waiting for any connection. It has an error code or something below it with 633A B50. I can only go into a few of the boot menues. I can't turn on ADB, and i can't access recovery or download mode. WHAT CAN I DO, PLEASE HELP.
Click to expand...
Click to collapse
If it says Firmware Update, then you are in download mode. If you have pretty much anything other than an AT&T, or Sprint model, you should be able to get a KDZ or use LG Bridge. If there is no KDZ for your phone, then it is a brick.
-- Brian

runningnak3d said:
If it says Firmware Update, then you are in download mode. If you have pretty much anything other than an AT&T, or Sprint model, you should be able to get a KDZ or use LG Bridge. If there is no KDZ for your phone, then it is a brick.
-- Brian
Click to expand...
Click to collapse
It is the sprint ls997 variant so no .kdz file as of currently. ADB is not connecting, but i can get LGUP with uppercut to recognize the device in download mode. I don't believe the boot loader is unlocked, but is there anyway i could use LGUP to push a .kdz file for a different variant (I tried the Verizon variant and it failed because it recognized i was trying the wrong variant) which would allow me to boot into a OS and turn on debugging and from there use Dirty Santa? Basically is there anyway to let LGUP push the wrong .kdz variant?

Have you tried the LG Flash tool? I know there are some patches that will allow it to flash without checking the model. Since you have a brick already, you have nothing to lose. If it were me, I would try every V20 KDZ that is out there in the hopes that one of them would boot. If you can get it to boot, then you can use dirty santa, and you will have a working phone again. On the plus side -- you got a great deal for $150.00. You can always hop on Ebay and find a system board to swap in.

runningnak3d said:
Have you tried the LG Flash tool? I know there are some patches that will allow it to flash without checking the model. Since you have a brick already, you have nothing to lose. If it were me, I would try every V20 KDZ that is out there in the hopes that one of them would boot. If you can get it to boot, then you can use dirty santa, and you will have a working phone again. On the plus side -- you got a great deal for $150.00. You can always hop on Ebay and find a system board to swap in.
Click to expand...
Click to collapse
what patches of LGUP will allow to flash without checking model?
I am having this trouble too. but i bricked mine trying to root it

there was a post on lg viet forums where they converted a ls997 to a Korean model, it had no service but after flashing the sprint modem,it worked perfectly. just look for patched lgup first.

jass65 said:
there was a post on lg viet forums where they converted a ls997 to a Korean model, it had no service but after flashing the sprint modem,it worked perfectly. just look for patched lgup first.
Click to expand...
Click to collapse
https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
Do you mean this? My LGUP never worked even before brick, so I already had to use this patched exe and dll file to even roll back to older firmware for dirty santa root in the first place.
Now after running step3.bat and flashing saved aboot img, the phone is locked out if recovery and download mode shows 633A B50 and patched LGUP / DLL no longer recognise device. Uppercut also doesn't recognise device. LG Flash 2014 also failed so did LG Bridge

jeanclaudevandamme said:
https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
Do you mean this? My LGUP never worked even before brick, so I already had to use this patched exe and dll file to even roll back to older firmware for dirty santa root in the first place.
Now after running step3.bat and flashing saved aboot img, the phone is locked out if recovery and download mode shows 633A B50 and patched LGUP / DLL no longer recognise device. Uppercut also doesn't recognise device. LG Flash 2014 also failed so did LG Bridge
Click to expand...
Click to collapse
no not that, this http://lgviet.com/forum/threads/huóng-dãn-up-rom-bản-hàn-cho-các-máy-mỹ-lg997-us996.66261/
but i guess you cant even get into download mode or have root.

jass65 said:
no not that, this http://lgviet.com/forum/threads/huóng-dãn-up-rom-bản-hàn-cho-các-máy-mỹ-lg997-us996.66261/
but i guess you cant even get into download mode or have root.
Click to expand...
Click to collapse
well i can get into download mode, but there is error 633A B50 which stop it from doing much useful
i can also launch into fastboot, though it's locked and fastboot flash commands no longer work

LG K20 plus, how to flash original rom

I have a LG K20 plus with t mobile as the carrier. I believe the model should be TP260. I mistakenly restored a twrp backup from a metro pcs phone that I got from this site coincidentally. Now my phone drops calls and data frequently and shows metro pcs on bootup vs tmobile. I have a kdz file but it won't flash because it now also thinks the model is MP260...not TP260 and says it's a mismatch. Any ideas on how I can get a restore for tmobile to try to reset the phone?

Just bumping

i could use a restore too. I installed super SU root and lost access to android pay. I wasnt to try that magisk root

I restored mine with the linked files.
install LG driver (uninstall any other drivers first)
install LGUP
remove battery from phone and replace
hold volume up key
insert USB while holding down volume up key
phone will boot to download mode
drivers will find phone
run UPPERCUT.exe
UPPERCUT.exe will launch LGUP with phone connected. if phone is not connected try again.
in LGUP lower window browse to TP26010k_00_0316.kdz
choose UPGRADE option in LGUP
click START in LGUP
factory ROM and Recovery will be installed, bootloader will still be unlocked
https://drive.google.com/open?id=0BygTApD1iNSSb3pCcU9RRlV1MVE
magisk can be installed using the same method as superSU. Mine is working along with AndroidPay

colemanimal said:
I restored mine with the linked files.
install LG driver (uninstall any other drivers first)
install LGUP
remove battery from phone and replace
hold volume up key
insert USB while holding down volume up key
phone will boot to download mode
drivers will find phone
run UPPERCUT.exe
UPPERCUT.exe will launch LGUP with phone connected. if phone is not connected try again.
in LGUP lower window browse to TP26010k_00_0316.kdz
choose UPGRADE option in LGUP
click START in LGUP
factory ROM and Recovery will be installed, bootloader will still be unlocked
https://drive.google.com/open?id=0BygTApD1iNSSb3pCcU9RRlV1MVE
magisk can be installed using the same method as superSU. Mine is working along with AndroidPay
Click to expand...
Click to collapse
You were able to install TWRP after this process with the TP26010k_00_0316.kdz?
I am on TP26010E and don't want to upgrade to TP26010k if TWRP cannot be flashed as it has been stated here.

Yeah, you have to perform OEM unlock again, but I have been able to flash TWRP after flashing the previously attached .kdz with the LGUP tool

colemanimal said:
I restored mine with the linked files.
install LG driver (uninstall any other drivers first)
install LGUP
remove battery from phone and replace
hold volume up key
insert USB while holding down volume up key
phone will boot to download mode
drivers will find phone
run UPPERCUT.exe
UPPERCUT.exe will launch LGUP with phone connected. if phone is not connected try again.
in LGUP lower window browse to TP26010k_00_0316.kdz
choose UPGRADE option in LGUP
click START in LGUP
factory ROM and Recovery will be installed, bootloader will still be unlocked
https://drive.google.com/open?id=0BygTApD1iNSSb3pCcU9RRlV1MVE
magisk can be installed using the same method as superSU. Mine is working along with AndroidPay
Click to expand...
Click to collapse
Can I install this kdz from twrp and install supersu?

no, you have to use LGUP tool. This is a LG image that will flash everything including your recovery partition, and not a flashable ROM image.

You flash root through TWRP, you use LGUP for kdz as the user above said rom flashing and kdz flashing are two different things

See this post which reflects the new kdz available https://forum.xda-developers.com/showpost.php?p=73690098&postcount=3
Just a Heads up there is a new version out, as of 9/01/17
MP26010r_00_0817.kdz
download link
https://lg-firmwares.com/lg-mp260-firmwares/
Click to expand...
Click to collapse

I flashed the modded ROM for MetroPCS, and couldn't flash kdz file because my phone was identified as MP260, instead of TP260.
I wiped the phone and re-locked the bootloader, and the phone would only boot into download mode, It gave a message about it being corrupted.
I took it back to TMO, and the sales people thought it was a virus, and replaced the device.
I've made a TWRP backup for anyone who runs into the same problem. This will fix your problem, so you can use the flash tools available for this device.
NOTE: I also provided Root tools and instructions for those Rooting for the first time.
1. Power off device, plug into computer, then hold volume up for download mode and let COM drivers install, you may need to change COM port to 41, through device manager.
2. In LGUP, choose upgrade or FOTA upgrade.
2. Once you flash firmware, you'll have to hit reset once or twice to get rid of the encryption failure notification.
3. Enjoy rooting your device again if you so choose.
ROOTING:
NOTE: Must have ADB & Fastboot setup already.
First you must unlock your bootloader.
1. In about phone settings, tap build number 6x to get developer settings, enable adb debugging and OEM unlock. Now plug into your computer.
2. Boot into Fastboot mode.
A. Open command prompt and type: adb reboot-bootloader.
B. Next type: fastboot oem unlock.
WARNING: You'll be prompted to factory reset device to protect your data. Your chance to turn back, if your brave then continue. Your device will factory reset, and you'll have to perform the first step again and you'll be ready to root.
1. To flash TWRP, plug into computer, then in command line navigate to where you have your recovery.img
A. adb reboot-bootloader
B. fastboot flash recovery recovery.img
2. Pull battery and manually boot into recovery,
A. volume+down as soon as you see LG, release then press again quickly and hold, follow the steps provided.
3. Hit cancel for the encryption notice, and swipe to modify system.
4. You must format device to get rid of encryption message, so choose format and it will ask you to type, yes.
5. Stay in recovery and flash the no-encryption.zip, and Magisk, if you choose to use it for your SU manager. Stay in recovery.
6. Reboot into recovery, and then set up your TWRP environment.
7. Enjoy Root:laugh:
NOTE: If you decide to root again, try using Magisk for SU management. Magisk's mods are excellent, and can run along side Xposed. If you choose Magisk, do not flash SuperUser.zip
TWRP STOCK BACKUP
https://mega.nz/#F!a59RBICD!kOisA-eOxviWK07Dn182FA
LG tools w/ Latest kdz
https://mega.nz/#F!b9sWDBwR!LjhrhZgYXB-BNHUWE11tJw
Sent from my K20 Plus using XDA Labs

Question I have a metropcs k20 version.Can I flash the t-mobile Rom with any problems.Thanks

Rican39 said:
Question I have a metropcs k20 version.Can I flash the t-mobile Rom with any problems.Thanks
Click to expand...
Click to collapse
You could probably flash the TWRP back up. After that your device would be Identified as TP260, by the flash tools and you'd end up with the same issue I had, when you decided to go back to stock, so make a TWRP backup on external memory. The KDZ file most likely won't flash because it performs a DLL check, to match device with firmware.

blas4me said:
You could probably flash the TWRP back up. After that your device would be Identified as TP260, by the flash tools and you'd end up with the same issue I had, when you decided to go back to stock, so make a TWRP backup on external memory. The KDZ file most likely won't flash because it performs a DLL check, to match device with firmware.
Click to expand...
Click to collapse
Thanks for reply.And info

does anyone have an mp 260 zip rom for twrp before boot?

5(/!p7 kiddie said:
does anyone have an mp 260 zip rom for twrp before boot?
Click to expand...
Click to collapse
I've got backup after unlock Bootloader and before root. Pretty sure it's got recovery on it. I always make a backup asap. It's the mp26010t (I had the November patch but some reason after root it says Oct).
Is that what you need?

Pm me if this is what you need and I'll send you a link

I have a Metro LG K20 Plus phone and want to change the firmware to T-Mobile. I have not been successful doing this as I always get invalid firmware, because LG UP recognizes the phone as a metro phone. Is there a way to succeed in getting the T-Mobile firmware on the phone?
thanks in advance.

lg k20 plus tmobil
lgup recognizes my model correctly as lg-tp260 on [com41] but it just sits there initializing for eternity. With my model highlighted I select it and I keep getting the error "LGUP cant load the model [C:\Program Files(x86)\LG Electronics\LGUP\model\com. I have installed lg air drive, lg bridge, lgup8994.dll, lgup for store. I desperately need to get this thing back to stock, I have the AICP rom installed but I dont like it. it was a mistake, if anyone can help I would appreciate it.

stovo06 said:
I've got backup after unlock Bootloader and before root. Pretty sure it's got recovery on it. I always make a backup asap. It's the mp26010t (I had the November patch but some reason after root it says Oct).
Is that what you need?
Click to expand...
Click to collapse
Could you PM me this link to the Metro PCS stock backup, if you still have it?

Please save my phone (ls997) always Fastboot mode

My phone always goes into fastboot mode. I use "Lgup" to do 996kdz and erase but no effect (there is a phenomenon, when 80% will restart, then enter FastBoot mode). So I used the "Lgflashtool" to do 996tot but it would be error at 6%(download Fail!! →Check DL Validation→00000064→Error ), so it's still useless. Every time I turn on my cell phone or link my computer, my phone goes into fastboot mode. There will also be a red word meaning: "Check unlock OEM in Developer mode".
Now the situation is:
can enter "FastBoot mode"
Can enter "Download mode"
BL is locked.
Can Not enter Android system
The model is ls997 but uses the Us996kdz (before the other ROM is so normal to use, but suddenly can not use the mobile network, and then I made a mistake ... ）
sorry I can't seem to upload the picture URL. have any questions please contact me, thank everyone.

You should have asked for help before trying to fix it yourself.
What version of the US996 firmware were you running?

runningnak3d said:
You should have asked for help before trying to fix it yourself.
What version of the US996 firmware were you running?
Click to expand...
Click to collapse
US99610f_00_1205.kdz thanks

So you use LG UP to flash the KDZ (don't use LGFlashTool anymore), and the flash completes successfully?
Also, you need to provide some more background on how you got into this situation -- what were you doing to your phone?
-- Brian

runningnak3d said:
So you use LG UP to flash the KDZ (don't use LGFlashTool anymore), and the flash completes successfully?
Also, you need to provide some more background on how you got into this situation -- what were you doing to your phone?
-- Brian
Click to expand...
Click to collapse
I want to use China Unicom Internet, but ls997 doesn't seem to be able to, first unlock BL, and then use other ROM. When I unlock the BL at the document in the link below (a TRF file), when the fourth step is over, my cell phone stops at the boot interface (a LG logo is spinning) for about 3 minutes. So I took the battery, but it also stopped on the boot screen after reboot. Silly, I used LGUP do 996kdz, and then it's what it is.
Download link: pan.baidu.com/s/1kV0Zakf (add "http" and so on please) password: jo2a

Well, you are lucky that LG used the same RSA cert. The US996 firmware doesn't work with the LS997, but at least you didn't brick your phone completely. Unfortunately, because some of the firmware is failing to load, you are being dumped into fastboot. Since you flashed the KDZ, that wiped out TWRP. Since you completed step4, you could have easily fixed your phone before flashing the KDZ. Now you are going to have to find a KDZ that is a little closer to the hardware of the LS997. Try the H915 KDZ. Make sure you download v10e. Anything newer will increment ARB and you can't get the proper firmware back on your phone. Here is the link to the KDZ.
When you flash that, your phone still won't work, but HOPEFULLY it will at least boot so you can root it again. Once it is rooted, you are going to need to find someone with an LS997 that is willing to do a complete dump of their firmware.
-- Brian

runningnak3d said:
Well, you are lucky that LG used the same RSA cert. The US996 firmware doesn't work with the LS997, but at least you didn't brick your phone completely. Unfortunately, because some of the firmware is failing to load, you are being dumped into fastboot. Since you flashed the KDZ, that wiped out TWRP. Since you completed step4, you could have easily fixed your phone before flashing the KDZ. Now you are going to have to find a KDZ that is a little closer to the hardware of the LS997. Try the H915 KDZ. Make sure you download v10e. Anything newer will increment ARB and you can't get the proper firmware back on your phone. Here is the link to the KDZ.
When you flash that, your phone still won't work, but HOPEFULLY it will at least boot so you can root it again. Once it is rooted, you are going to need to find someone with an LS997 that is willing to do a complete dump of their firmware.
-- Brian
Click to expand...
Click to collapse
Oh,I think I see the light of hope, I'll try it. I'm glad to have your help , Thank you very much.

runningnak3d said:
Well, you are lucky that LG used the same RSA cert. The US996 firmware doesn't work with the LS997, but at least you didn't brick your phone completely. Unfortunately, because some of the firmware is failing to load, you are being dumped into fastboot. Since you flashed the KDZ, that wiped out TWRP. Since you completed step4, you could have easily fixed your phone before flashing the KDZ. Now you are going to have to find a KDZ that is a little closer to the hardware of the LS997. Try the H915 KDZ. Make sure you download v10e. Anything newer will increment ARB and you can't get the proper firmware back on your phone. Here is the link to the KDZ.
When you flash that, your phone still won't work, but HOPEFULLY it will at least boot so you can root it again. Once it is rooted, you are going to need to find someone with an LS997 that is willing to do a complete dump of their firmware.
-- Brian
Click to expand...
Click to collapse
Oh,I think I see the light of hope, I'll try it. I'm glad to have your help , Thank you very much.
I suddenly think of a question, if the phone is different from KDZ, probably can not use LGUP flash it...

There is a patched LG UP that lets you cross flash. How did you flash US996 firmware?

runningnak3d said:
There is a patched LG UP that lets you cross flash. How did you flash US996 firmware?
Click to expand...
Click to collapse
? Sorry, I don't understand. Do you mean to let me use h91510e_00_vtr_ca_op_1205 kdz through Lgup? When I use Lgup to Flash, Lgup will tell me:"Error:KDZ file is invalid US996 → H915"
I will go to the repair shop to understand the situation (I think the maintenance will be very expensive, so I will come back), please wait for me, thank you

runningnak3d said:
There is a patched LG UP that lets you cross flash. How did you flash US996 firmware?
Click to expand...
Click to collapse
The clerk told me I needed to repair FLASH MEMORY, and that the maintenance required 1/3 cell phone prices, and I gave up.
Whatever it is, please let me know as soon as you can, because I will try (because it won't get worse)

Did you try flashing the H915 firmware? Since there is no KDZ for the LS997, you are going to have to try flashing firmware till you find one that will boot.
The US996, VS995, H915, H990 all have the same RSA cert and have KDZs (H910 and LS997 use the same key as well, but as you know, there is no LS997 KDZ), so while your phone might not work, you can try again. So, pick one, flash, and see what happens. With any luck you will find one that is close enough hardware wise that it will boot and you can root it.
Make sure that you flash a version that is old enough to still be exploitable. If it isn't exploitable, AND it increments ARB, you will be stuck with whatever you flash.
-- Brian

runningnak3d said:
Well, you are lucky that LG used the same RSA cert. The US996 firmware doesn't work with the LS997, but at least you didn't brick your phone completely. Unfortunately, because some of the firmware is failing to load, you are being dumped into fastboot. Since you flashed the KDZ, that wiped out TWRP. Since you completed step4, you could have easily fixed your phone before flashing the KDZ. Now you are going to have to find a KDZ that is a little closer to the hardware of the LS997. Try the H915 KDZ. Make sure you download v10e. Anything newer will increment ARB and you can't get the proper firmware back on your phone. Here is the link to the KDZ.
When you flash that, your phone still won't work, but HOPEFULLY it will at least boot so you can root it again. Once it is rooted, you are going to need to find someone with an LS997 that is willing to do a complete dump of their firmware.
-- Brian
Click to expand...
Click to collapse
There's been some other LS997 users who claim that after flashing the US996 kdz, their phone works fine, except for cell service.
Do you know where I could find the modified LGUP which lets you flash individual partitions, and lets you flash other model KDZs?

LG VS995 Only boots to LG screen and vibrates -- Help needed please

OS - Windows 10 Enterprise N LTSC 64-bit
How I got here:
Rolled back to 2016 build using LGUP (store, patched).
Used dirtysanta to unlock bootloader and install TWRP.
On first boot, I got static and a constant buzz from the haptic feedback motor.
Not knowing that Verizon users sometimes need to wait over 20 minutes, after 10 or so I assumed I was toast.
Tried to flash NotYetADev's Oreo build with the same result. (https://forum.xda-developers.com/v20/development/vs995-verizon-lg-v20-stock-oreo-rooted-t3845669)
Attempted repairs:
Tried LG Flashtool using dksoni411's method (https://forum.xda-developers.com/v20/how-to/guide-lg-v20-to-life-t3827732) and it failed to work.
Now LGUP is not working. Changes between "not recognized" and "wrong DLL" depending upon LHUP_common.dll version.
Uppercut ran after disabling A/V but didn't work and required a system restore to get Windows back to a normal state.
Flashing several alternate kernels doesn't fix.
Flashing LineageOS, same thing.
What's still working:
Download Mode
Fastboot Mode
TWRP
Notes:
I have the original files from the first LGUP dump.
Looking at the build.prop from the TWRP terminal, each flash appears to be successful but still hangs at the LG "Life's good" screen.
I am kind of at a loss as to how to proceed. I have some reservations pushing aboot or any other files via fastboot as I don't want to risk a hardbrick condition. Any assistance would be greatly appreciated. I can spinup a VM if needed to run Uppercut. I am not going down that road again...

Update:
Installed all software, drivers, etc. in a Windows VM. Same results. Uppercut still fails to work with LGUP...

Out of desperation, I flashed bootbackup.img to the device. No change.
Anyone? Anyone? Bueller?

It appears that TWRP is not flashing the system partition even though it is mounted.
Anyone?

You don't need uppercut. Remove it. You need lgup patched working. Do that first. Trial and error I recall with dll file. Just keep trying. Forget virtual machine. If you don't need Verizon firmware you can use US996 and then dirtysanta. Vibrator issue is with verizon firmware only.
Sent from my LGE LG-US996 using XDA Labs

Posting an updated request in another thread as no help is forthcoming here.

if i remember correctly it has to do with dirty santa step 3 where you install twrp and need to type
"adb reboot recovery"? this step almost screwed me over... you actually dont need to wait for vibrate to stop to boot in twrp, wait 5mins then type the adb command, and it will reboot in recovery...

Thanks for the reply.
I got LGUP (patched) working again on a clean virtual machine. My work PC is very loaded with software and I wanted to avoid driver conflicts. Sadly, the original KDZ dated December 2016 that I first flashed won't work now. It throws a "wrong model" error likely caused by my using the LG flash tool and it failing to complete the flash.
It turns out that my file system was hosed but I managed to fix that in TWRP. Rather than try and use fastboot to flash the files individually from the original LGUP dump, I am making a TWRP flashable zip. Hopefully, that will work.
If I can get it back to stock, I am confident that I can get it going. My main screwup was not waiting long enough on the first rooted boot (static screen, and vibrate). I now have a kernel to flash that is supposed to fix that. I have a bad feeling that I will need to revisit the LG Flashtool and correct those errors before anything will be resolved.
More information in an updated thread here:
https://forum.xda-developers.com/v2...anta-bootloader-t3519410/page400#post81065413