LG G3 Hard Brick Solutions - G3 Q&A, Help & Troubleshooting

1st- try the following method
http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359
2nd- you fail to unbrick or the following error occurs
>>>> EMMC test fail
this is due to dry soldering of EMMC chip
in such case use a HEAT GUN and give heat on the EMMC chip...
leave it for 30 minutes then insert battery and plug cable into phone while hold volume up key.
hope: it will be booted into download mode.
>>>> NOW install the stock tot & dll.
NOTE: DO NOT OVERHEAT THE MOTHER BOARD OTHERWISE IT WILL BE DEAD
i also had the same problem with my LG G3 (F400K)
i tried a lot but failed some time it was booted into download mode and failed to install tot & dll at 99% or sometimes 6%.
after removing and re connecting battery, it show QHSUSB DLOAD 9008 & never booted into download mode.
after 30 to 40 minutes it was being booted into download mode and so on.
i used a heat gun and NOW MY LG F400K IS WORKING FINE AND USING CUSTOM FULMICS ROM 6.6

Is it really emmc problem? I have the exact problem like you describe. Like hard to boot into download mode.
Even if it does it will fail at flashing using Lg flash tool.
Sometime boarddiag would give me emmc test fail. So, i have to re-short over and over again.
Also If i use different firmware like vs985, with just single attempt boom it boot into download mode.
Btw mine is D858HK

Related

LG G3 D855 secure booting error !!

hello All
i did something very very very bad
i was upon to downgrade my D855 from 5.0 to Kitkat but it stop on 17% in pc and 0% on the phone
it still like that for 40 min so i unplug USB and i restart the phone i just get message says (secure booting error) in the up left side of phone and after that black screen and LED (BLUE & RED) i can not get in to download mode but when i try i get this :
Qualcomm HS-USB QDLoader 9008 (COM41)
and when i try to enter to recovery mode i get had to do factory reset and same problem !
so anyone can help me with this ?
Thanks ..
any help plz
Hello.
Move your battery, then replace it.
Flash an official kdz from lg.com with LGflashTool and your phone will restart
Your device is Brick!!
Try to enter Download mode
Flash your device again with LG FLash tools(tot File) or KDZ
i found it holllllaaa
for everyone have this problem, on this link you can fix it
http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359
i used KIZ file by the way
and i wish frm supervisor to close this subject and write solved on it
thanks.

D855 Kernel or TZ Crash - can't flash any kdz

Hello,
I have a LG G3 D855 EUROPE. I can't flash any KDZ or TOT File, try with LG UP, LG Flash Tool, and LG Flash Tools 2014 and other.
On download mode, when flashing, the phone reboot and software lost connection to phone (when writing system).
The only way for me, is to reboot phone on Qualcomm HS-USB QDLoader 9008 and flash all partition with BoardDiag.
Writing all partition, even system and userdata. Then the phone can boot with KitKat stock rom. But when the phone boot correctly, the phone will reboot after 2 minute sometime, sometime 1 hours etc ... With green screen TZ Crash, or Black screen Kernel crash ... not always the same error.
BoardDiag emmc test report No error.
I think there is a hardware problem ? But how to debug ? Can it be only the connector charge ? Or is a motheboard problem ? (emmc or dram ?)
Is there a way to use SDCard for system ?
Thank you
sanjayrup said:
Hello,
I have a LG G3 D855 EUROPE. I can't flash any KDZ or TOT File, try with LG UP, LG Flash Tool, and LG Flash Tools 2014 and other.
On download mode, when flashing, the phone reboot and software lost connection to phone (when writing system).
The only way for me, is to reboot phone on Qualcomm HS-USB QDLoader 9008 and flash all partition with BoardDiag.
Writing all partition, even system and userdata. Then the phone can boot with KitKat stock rom. But when the phone boot correctly, the phone will reboot after 2 minute sometime, sometime 1 hours etc ... With green screen TZ Crash, or Black screen Kernel crash ... not always the same error.
BoardDiag emmc test report No error.
I think there is a hardware problem ? But how to debug ? Can it be only the connector charge ? Or is a motheboard problem ? (emmc or dram ?)
Is there a way to use SDCard for system ?
Thank you
Click to expand...
Click to collapse
Try formatting your LG G3
Power button + volume down (like when you go to TWRT recovery)and a dialog will appear "Factory reset" (or something like that).
Greetings.
Sotiris02 said:
Try formatting your LG G3
Power button + volume down (like when you go to TWRT recovery)and a dialog will appear "Factory reset" (or something like that).
Greetings.
Click to expand...
Click to collapse
Thx for reply. Already done. Wipe data do nothing. Kdz alway with error. Only boardiag can write image partition without error. But bootloop. I try to flash another tot file LGD855AT-00-V10b-HKG-16G (no europe) with boardiag. But after flashing, the phone have black screen, can't boot. Download mode and recovery is working fine.
I realy think there is a hardware problem
Battery give 3.7 Volts. When charge > 70%, the battery gave 3.8 Volts and the phone can boot with charger.
I think there is a problem with battery. With 2 amper charger, and a full charge 100%, i can boot the phone with charger plugins. I will order a new battery.
sanjayrup said:
Battery give 3.7 Volts. When charge > 70%, the battery gave 3.8 Volts and the phone can boot with charger.
I think there is a problem with battery. With 2 amper charger, and a full charge 100%, i can boot the phone with charger plugins. I will order a new battery.
Click to expand...
Click to collapse
Yes change your battery(had the same problem with it).
You only want to flash KitKat or i doesn't matter?
Well here you can have Marshmallow one.
Sotiris02 said:
Yes change your battery(had the same problem with it).
You only want to flash KitKat or i doesn't matter?
Well here you can have Marshmallow one.
Click to expand...
Click to collapse
already try 30B (MM), 20A (Lollipop) and multiple 10 (kitkat) 10e 10f 10a. With LGUP, LG Flash Tool 1.8, LG Flashtool 2014.
ALL TOT, and KDZ give an error "lost connection" because phone is shuting down, or reboot (battery default) during process.
Only when phone is on Qualcomm HS-USB QDLoader 9008 i can fly partition with BoardDiag (because Qualcomm HS-USB QDLoader 9008 not using battery)
i have order a new battery

[HELP] V500 stuck in download mode, LG Flash tool gets stuck at 4%

Hello xda
So I decided it was time to have some fun with my good old v500 and get rid of the annoying kitkat limitations.
I installed twrp recovery and flashed AOSP 7.1 which looked great but after some days of use I started getting some serious glitches in wireless and decided to go back to something lg-made
So I downloaded the korean v50030a kdz, got in download mode and then when I run LG update tool it got stuck at 4%
So I said ok and tried to reboot the phone, but after reboot it goes every time to download mode.
Then my adventure starts, I read that the proper way to get out of download mode is while pressing power button to plug the micro usb.
This didnt work for me no matter if I tried switching the phone off first (holding power for 10secs to go off, then power button and then plug micro usb) or while it was on (showing the download mode logo) pressing the power and plugging the micro usb.
I tried using the official LGMobile support tool to download the official kdz (20F kitkat version / upgrade recovery) it also gets stuck at 4% when trying to install the kdz,
I tried using the LG flash tool to install it myself again no luck
I tried the old ways with the manual trick editing the hosts file and running the http server to send the v30 kdz to the update tool, again it got stuck at 4%
I changed the COM port to 47 for the LGE AndroidNet USB serial port -> this seemed to make read phone information work once but no luck with getting past 4%
So I have run out of ideas. Any help is greatly appreciated
I have found a solution by downloading and reinstalling the driver from here https://forum.xda-developers.com/showthread.php?t=2797190 while having connected the gpad in the pc
Then opened device manager in windows and changed from COM4 to COM41 the LGE device under Ports (COM &LPT ) section
Then used the official 20F rom and Normal flash / CDMA mode :good:
I believe that the problem was in the drivers but I am not sure, I hope the above information will help others as well
for what is worth, I tried to flash 30a again using the same method as above and got again stuck at download mode LOL
I connected the usb cable to a different port in the PC and installing 30a worked
Thats it for my gpad, too much adventure for it

Green Screen of Death [DemiGod Crash Handler: HW Reset!]

woke up to this green screen of death, pulled out the battery, and phone is dead since then.
no combination of buttons does anything.
The only picture i get the phone to display is when i plug it into the pc without a battery i see the yellow triangle next to the empty battery.
Whenever i put the battery in its solid black, not even the leds light up.
Anyone know of any way to get it into download mode? or is it dead?
Necromancer3 said:
woke up to this green screen of death, pulled out the battery, and phone is dead since then.
no combination of buttons does anything.
The only picture i get the phone to display is when i plug it into the pc without a battery i see the yellow triangle next to the empty battery.
Whenever i put the battery in its solid black, not even the leds light up.
Anyone know of any way to get it into download mode? or is it dead?
Click to expand...
Click to collapse
You can try shorting a pin on the motherboard, getting into qualcomm 9008 mode, and then manually loading the proper partitions via the board diag tool listed in the instructions here... https://forum.xda-developers.com/verizon-lg-g3/general/how-to-hardbrick-guide-using-test-t3276928
To be honest though...it may be time for a new phone. If it randomly crashed on you and went to the Demigod most likely one of the chips is dead/dying or the solder has opened up(common g3/lg problem). You can test if it is a solder issue by putting light pressure on the board near the SoC, memory, and/or PMIC chips and powering it up; if it shows any signs of life then you have bad solder connection and need a new board.
startswithPendswithOOH said:
You can try shorting a pin on the motherboard, getting into qualcomm 9008 mode, and then manually loading the proper partitions via the board diag tool listed in the instructions here... https://forum.xda-developers.com/verizon-lg-g3/general/how-to-hardbrick-guide-using-test-t3276928
To be honest though...it may be time for a new phone. If it randomly crashed on you and went to the Demigod most likely one of the chips is dead/dying or the solder has opened up(common g3/lg problem). You can test if it is a solder issue by putting light pressure on the board near the SoC, memory, and/or PMIC chips and powering it up; if it shows any signs of life then you have bad solder connection and need a new board.
Click to expand...
Click to collapse
So there is no way i can make adb work from download mode? The device is recognized but in the list of driver installed does not appers "adb". I have some importants file on it and really need to recover it
marsio95 said:
So there is no way i can make adb work from download mode? The device is recognized but in the list of driver installed does not appers "adb". I have some importants file on it and really need to recover it
Click to expand...
Click to collapse
What is the device recognized as? If it is listed as a qualcomm device you are probably stuck and need to follow the tutorial I linked previously. If you see androidnet, LGE, or something that looks like your device then you may get lucky and just need the right driver(s) for your PC.
If you can find a way to get download mode working again(shorting the pin and loading the proper partitions should work) you should be able to recover your files by flashing a kdz and choosing the "normal flash"
option with the LG flash tool(CSE option &/or TOT flash will erase everything)... https://forum.xda-developers.com/showthread.php?t=2797190
*Just try to flash the same version of the software you were running at the time so you can avoid any conflicts; if you can't remember the exact SW version at least flash the correct android version (kit kat, lollipop, marshmallow, nougat).
startswithPendswithOOH said:
What is the device recognized as? If it is listed as a qualcomm device you are probably stuck and need to follow the tutorial I linked previously. If you see androidnet, LGE, or something that looks like your device then you may get lucky and just need the right driver(s) for your PC.
If you can find a way to get download mode working again(shorting the pin and loading the proper partitions should work) you should be able to recover your files by flashing a kdz and choosing the "normal flash"
option with the LG flash tool(CSE option &/or TOT flash will erase everything)... https://forum.xda-developers.com/showthread.php?t=2797190
*Just try to flash the same version of the software you were running at the time so you can avoid any conflicts; if you can't remember the exact SW version at least flash the correct android version (kit kat, lollipop, marshmallow, nougat).
Click to expand...
Click to collapse
maybe you give me the solution !!! Yes i can get in the download mode anytime i want ; the device is recognized as Lge driver . O i try to flash the right kdz file and hope it will good

Hard bricked F400L

Hi all
It all happens after the screen was suddenly froze and having to take the battery out.
When turned on, the phone had a red/blue led problem.
It was first solved using the LGFlashTool V1.8.6.527 to flash in the LGF400LAT-00-V10a-LGU-KR-MAY-18-2014-0 tot. The phone was reverted to the original firmware and was functional.
Then I wished to upgrade to the latest stock fw (F400L30c_00_1217) using LG Tool 2014. Unfortunately this buggy program prompted connection to server failed and the text was messed up with ????? in the pop up LGUserCSTool window. It was force closed by the system so the whole process could not be completed. I pulled out the battery again(which I now think that I shouldn't do) and after restarting the download mode was ruined.
I tried to fix it using the short pin method here and if rescued would re-flash the tot using the LGFlashTool.
The problem is LGFlashTool did not allow me to do it this time with Model Information Check Fail just like others in this forum https://forum.xda-developers.com/lg-g3/help/model-information-check-fail-t3163715
Having received the message "Model Information" fail, I thought it was due to the firmware version mismatch so I decided to give the LG Tool 2014 a try, again.
I was learnt to ignore the connection fail message to let it run in the background.
However, this time it ended up at around 65% and now the download mode has gone.
Each time the power+vol up combination ends up being detected as qhsusb_bulk, a.k.a Qualcomm HS-USB QDLoader 9008
Not sure if the pins were physically damage during the shorting.
I have a thought. Is there any tool to convert kdz -> tot?
I know there is one to extract the bin, dz from kdz but I need tot to use in the boarddiag (as I think maybe the v30c firmware information has written into the phone by LG tool causing the LGFlashTool V1.8.6.527 to reject writing in)
What is the boarddiag for? Is it performing the same as adb/fastboot to erase/flash partition?
Or are there any workouts?
Thanks for reading and helping me.
it's so weird...yesterday it was stuck at qhsusb_bulk mode
so after placing for a day, it was detected as ABD interface today
and it was booted into fastboot mode.
I managed to erase partition but not flash..tried fastboot boot twrp.img
it restarted with a black screen and this time was detected as lge AndroidNet USB Serial Port
have tried the lg flashtool but no luck
Followed by that, I had applied the short pin method to restore the partitions again..
afterwards, i could manage to get in qhsusb_bulk only...
lets see if it could be in ABD interface tomorrow
btw, any ways to fix the download mode by the fastboot method given the bootloader was locked?
I was finally able to reflash using the tot file
but after flashing the phone reboots into black screen with flashing blue/red led just like previously(bricked status)
the phone was unable to connect as LGE AndroidNet USB Serial Port too
therefore, the flash tool could not complete
any idea for a fix?
my lg g3 f400s bricked
funhk said:
Hi all
It all happens after the screen was suddenly froze and having to take the battery out.
When turned on, the phone had a red/blue led problem.
It was first solved using the LGFlashTool V1.8.6.527 to flash in the LGF400LAT-00-V10a-LGU-KR-MAY-18-2014-0 tot. The phone was reverted to the original firmware and was functional.
Then I wished to upgrade to the latest stock fw (F400L30c_00_1217) using LG Tool 2014. Unfortunately this buggy program prompted connection to server failed and the text was messed up with ????? in the pop up LGUserCSTool window. It was force closed by the system so the whole process could not be completed. I pulled out the battery again(which I now think that I shouldn't do) and after restarting the download mode was ruined.
I tried to fix it using the short pin method here and if rescued would re-flash the tot using the LGFlashTool.
The problem is LGFlashTool did not allow me to do it this time with Model Information Check Fail just like others in this forum https://forum.xda-developers.com/lg-g3/help/model-information-check-fail-t3163715
Having received the message "Model Information" fail, I thought it was due to the firmware version mismatch so I decided to give the LG Tool 2014 a try, again.
I was learnt to ignore the connection fail message to let it run in the background.
However, this time it ended up at around 65% and now the download mode has gone.
Each time the power+vol up combination ends up being detected as qhsusb_bulk, a.k.a Qualcomm HS-USB QDLoader 9008
Not sure if the pins were physically damage during the shorting.
I have a thought. Is there any tool to convert kdz -> tot?
I know there is one to extract the bin, dz from kdz but I need tot to use in the boarddiag (as I think maybe the v30c firmware information has written into the phone by LG tool causing the LGFlashTool V1.8.6.527 to reject writing in)
What is the boarddiag for? Is it performing the same as adb/fastboot to erase/flash partition?
Or are there any workouts?
Thanks for reading and helping me.
Click to expand...
Click to collapse
you need to heat your processor to open download mode

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