Hi, so I have this LG G6 H870 which is rooted, has TWRP installed but with stock ROM. As I have upgraded to an Xiaomi Mi 8, I wanted to make it as it came out of the factory. I got the .kdz file, LGUP with Uppercut and at first I got an Error: 0x2000 and the progress was always stuck on 4%. Then I tried using LG Bridge to update the software, didn't do it but it did update LG USB drivers (I had it installed, but I guess it was an older version). I tried using LGUP again but now I get „Error: 0x81000302, Please use latest DLL LAF Protocol version is not match DLL = 1154019668 Device = 118497312“. Any suggestions?
Solved it by using LG Bridge and clicking on Update Error Recovery.
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I've got a T-Mobile D801 and tried flashing to the stock lollipop rom D80130b_00 using TWRP and the instructions on this page, but the flash must have failed. I did a full factory reset back to stock 4.4.3 prior to attempting this flash and I'm not sure what (if anything) I did wrong for the flash to fail. I can boot in factory reset mode and select clear everything, but then I just see the android guy with gears turning for 2 seconds and the phone reboots again.
Now I'm in a bootloop where I get an "error: Boot certification verify" above the T-Mobile startup logo followed by a "Demigod Crash Handler: Critical Error!" screen that provides options for rebooting (volume down) or putting the phone into download mode (volume up). After using the volume up the screen displays "Volume Up is pressed: Jump to Dload mode" and after connecting via USB appears in device manager as "LGE AndroidNet USB Serial Port (COM41)". I can't (1) boot directly into download mode or (2) get back into TWRP.
I've tried both the KDZ and TOT methods listed in this thread and neither are working. The LG Flash Tool 2014 / KDZ option starts the LG Mobile Support Tool, but it fails every time once "S/W Upgrade is in progress" reaches 4% with a generic "Upgrade stopped due to an error" message.
The TOT method fails every time with a "Model Information Check FAIL!" message. The full text is - "PID: NULL, IMEI: NULL, Model: , DLL:801, BIN: BIN_LGD801AT-01-V10c-310-260-AUG-13-2013+0.tot , SWV: , SWOV: , Model Information Check FAIL! , 00000000"
I've also tried using srktool to repair fastboot, but it gets stuck at "waiting for device".
What do I try next?
Finally got back into 4.2.2 using tot method. LG Mobile Support Tool doesn't think updates are available though??
same situation lg g2 d802
losonn said:
Finally got back into 4.2.2 using tot method. LG Mobile Support Tool doesn't think updates are available though??
Click to expand...
Click to collapse
i am in same situation with lg g2 d802 model ..have you fixed your g2?
hunzz said:
i am in same situation with lg g2 d802 model ..have you fixed your g2?
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Click to collapse
Yes, I *think* what happened was that my 30b bootstack was flashed successfully via twrp, but then the actual kdz flash of D80130b_00 failed. I had a lot of trouble at this point - needed to fix qhsusb_bulk problems first, then use the more aggressive TOT flash method to reset to stock 4.2.2.
Finally the LG Mobile Tool was still reading it as having D80130b_00 / lollipop after going back to 4.2.2 via TOT (?). Last step was to do a full restore from the LG Mobile Support Tool (options -> upgrade recovery) and it actually downloaded / flashed D80130b_00 so everything is working well now :good:
If it helps anyone I used the LG backup tool to restore apps / media and have to say that for a stock solution it's pretty solid.
qhsusb_bulk?
losonn said:
Yes, I *think* what happened was that my 30b bootstack was flashed successfully via twrp, but then the actual kdz flash of D80130b_00 failed. I had a lot of trouble at this point - needed to fix qhsusb_bulk problems first, then use the more aggressive TOT flash method to reset to stock 4.2.2.
Finally the LG Mobile Tool was still reading it as having D80130b_00 / lollipop after going back to 4.2.2 via TOT (?). Last step was to do a full restore from the LG Mobile Support Tool (options -> upgrade recovery) and it actually downloaded / flashed D80130b_00 so everything is working well now :good:
If it helps anyone I used the LG backup tool to restore apps / media and have to say that for a stock solution it's pretty solid.
Click to expand...
Click to collapse
you said your g2 was detected as a lge androidnet in device manager but not as a qhsusb_bulk...then what problems have you fixed about qhususb_bulk? and what is the more aggressive tot method different from this threadhttp://forum.xda-developers.com/showthread.php?t=2432476
Were you able to find a solution? I'm in the same situation. Please help!
Hello. I have bricked LG Spirit 4G h440n model. It is stuck on LG logo. I can go in the download mode, but every time LGUP detects the phone as Unknown model. I have tried everything, installed LGUP_8916.dll, added to registry, tried with UPPERCUT but every time I get Unknown model. I tried this guide https://forum.xda-developers.com/lg-g5/how-to/bring-lg-g5-to-life-download-mode-lgup-t3565508 which I successfully tried few times on LG G5, but it doesn't work with LG Spirit. LG Flashtool always says Failed PreviousLoad(). I have tried on a PC and the laptop, different drivers, different versions of LGUP and Flashtool, but every time same errors. LGUP detects my LG G5 and V30 without problem. Any suggestions?
Have you tried with this lg flash tool?
AgussVicious said:
Have you tried with this lg flash tool?
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Click to collapse
Yes, I have tried Lg Flash Tool 2014. It comes with and error, also.
Hi guys!
Having this problem when trying to flash the custom back on my h870. So the story is that when I got the phone it was on android 7, then I’ve flashed msm, havoc and bliss, then flashed the stock android 9 kdz image using LG up, then went back to the custom roms. Now I am trying to go back to the same android 9 stock kdz but this time it doesn’t seem work anymore.
Phone is showing this error in the download mode console:
[msm8996] 633A B50
Modified / E / L / RO / id : 0()
LG uppercut showing this error:
Error: 0x81000302 Please use latest dll
LAF Protocol version is not match...
I can still use adb, fastboot and the custom rom just fine. It is just I can’t flash the stock rom back. Any help appriciated. Many thanks!
You need to find the Dll for LG v40 and the put it in the common folder of LG Up. If you still need help pm me.
someone please help to bring back my lg g6 h870ds .(lock bootloader and cant fastboot ) all i can do is watch my lg phone on firmware update. if i restart it just always on same phase ( do not plug the usb connection until the process complete) . i already try to attempt to factory reset but it always stuck on system update i mention .
i tried LG UP and LG bridge but the same results , i downloaded the new virsion og LGUP .store .dev . lab and i have correct kdz and hash but it always says 0x20000 0x80000202 invalid response but the time i tried LG BRIDGE it fails and also changed the firmware of my LG G6 now i have to update to latest verion of LGUP and common dll . it runs ... but theirs new dialog says 0x7000 KDZ image corrupted but i double check it and it is a correct hash .. even in previous attempts it is always 0x2000 0x8000202 always on 11% to 12% of load until is stop . now in this new one 0x7000 thing its the same 11% to 13% of load until it fails . my suspicion about is maybe it just the same error but it just change its error message .
i just want to know if theirs a way to bypass its LGUP tool to clear the system cache of my phone because before i plug it and turn on debugging i got errors on LG firmware app it self it crash and stop always (my phone is alive in that time) the app that u used to update your lg phone without computer
i see a thread that he make a dev patch of LGUP that unlock all features and i have its copy but is on LG V20 and not compatible on my lg g6h870ds ( the LGUP says on boot up . invalid dll for your lg g6h87020q please install proper dll ( .msi))
if theres anybody can help where i can find modded dll patch LGUP to my lg g6 h870ds (GCC ) so i can flash without restrictions
ps sorry for my bad english
I CANT USE UPPERCUT BECAUSE OF NEW UPDATE OF MY FIRMWARE AND CANT DO ANYTHING JUST LGUP ITSELF . BECAUSE I DONT HAVE ACCESS ON BOOTLOADER AND FASTBOOT
Hello! Sorry for my bad language, but English is not my native language.
I have a LG G6 H870 EU. A year ago I unlocked the bootloader, installed TWRP and a custom rom.
Everything worked, but I bought a newer phone. Now I need LG G6 with original firmware (and stock camera app). I found the stock software on XDA for TWRP. I installed them. The phone booted up properly, Android requested data formatting. When I agreed, my phone got stuck in the TWRP loop.
Now I install various software, custom and stock - only TWRP starts every time. I tried LG UP but at 9% it shows "USB Connection established" error. I've tried various DLLs, but on others the program doesn't start at all. Maybe I have the wrong DLL? I've tried UPPERCUT too.
Please help, thank you.
Hi. I have a similar problem on my LG G6. After selecting reboot from TWRP, the message "No OS Installed!" shows. After reboot I get into TWRP again.
Using LGUP CMD (command line) I was finally able to flash the phone and get it working.
See:
How to use LGUP (Command Line) to flash LG phones
This guide will explain how to use LGUP (Command Line version) to flash firmware (in .kdz or .tot format) to an LG Android device. RequirementsDownload and install LG drivers Download the firmware for
www.hovatek.com
LGUP CMD / Dev / Lab / Store Tool Versions
Below is a collection of different versions of LGUP CMD / Dev / Lab / Store tools. They are Windows tools for flashing .kdz & .tot files / firmware to an LG Android device Download LGUP CMD / Dev / La
www.hovatek.com
LGUP_common dll versions
Below is a collection of different versions of LGUP_common.dll. They are files necessary for getting LGUP to properly detect an LG phone in download mode. Download LGUP common dll LGUP common dllLGUP_
www.hovatek.com
It might work for you. It is worth a try. Good luck.
worldoflimak said:
Hello! Sorry for my bad language, but English is not my native language.
I have a LG G6 H870 EU. A year ago I unlocked the bootloader, installed TWRP and a custom rom.
Everything worked, but I bought a newer phone. Now I need LG G6 with original firmware (and stock camera app). I found the stock software on XDA for TWRP. I installed them. The phone booted up properly, Android requested data formatting. When I agreed, my phone got stuck in the TWRP loop.
Now I install various software, custom and stock - only TWRP starts every time. I tried LG UP but at 9% it shows "USB Connection established" error. I've tried various DLLs, but on others the program doesn't start at all. Maybe I have the wrong DLL? I've tried UPPERCUT too.
Please help, thank you.
Click to expand...
Click to collapse
Sorry for the post hijack, just curious. How did you manage to unlock your bootloader a year ago. I thought LG stopped providing the unlock.bin's like, 5 years ago?