Database Users

Bricked phone ?

Hi,
I tried to upgrade from v2.1 to new Android 2.3.5 Gingerbread For LG Optimus GT540 and I followed instructions exactly, but I am stuck at number 8, I did this:
8- Now click “Launch software update”, DO NOT USE THE PC TO THE PROCESS IS COMPLETE. THE PHONE WILL REBOOT WHEN FINISHED THE PROCESS IN KDZ. (The process takes about 15 minutes in KDZ).
and about 2 minutes text log writes and stopped, I am now waiting more then 40 minutes my phone didn't reboot. On display is still written download mode, what should I do now ?
In kdz is written:
3GQCT: wParam = 205. IParam = 36
p.s.
I disconnected phone from usb and pull out battery and now I cannot turn on phone, I tried to push vol down + power for 5 sec.
Any idea what should I do now? I hope I didn't brick my phone

What programs are you using?
What are you using to update your phone and have you tried taking out your SIM, SD card and battery then turned it on with the USB cable?

I used KDZ updater and tried to install CyanogenMod7 (2.3.5) @ GT540 Swiftdroid2 RC3 by Mur4ik. if that is what you ask ?
I removed sim card and battery also, then tried to turn it on while plugged in to computer usb but no response from phone, I can't turn it on
p.s. I am using win 7 64 bit OS

gorantz said:
I used KDZ updater and tried to install CyanogenMod7 (2.3.5) @ GT540 Swiftdroid2 RC3 by Mur4ik. if that is what you ask ?
I removed sim card and battery also, then tried to turn it on while plugged in to computer usb but no response from phone, I can't turn it on
p.s. I am using win 7 64 bit OS
Click to expand...
Click to collapse
If you can't get into download mode, then it's game over I'm afraid. What you will need to do is return the phone back to where you bought it. This happened to me some time ago. But the Carphone Warehouse were happy to fix it (even though I had voided the warranty but don't tell them that ). Don't say that you tried to mod the phone, say something like 'I installed LG's PC Suite and it said my device had a software update. I went along with it, but it gave me an error half way through. Now my phone won't turn on at all' It might just work!

I had the same problem when modding with kdz.
completely bricked my phone, but was able to fix by putting kdz into emergency mode instead of diag and updating with a fastboot stock rom,
it would stop after 2 minutes and give me and error but it managed to get fastboot onto my phone,
(camera + power)
then just flashed the fastboot method with adb and everything was fine,
my problem was something to do with lg modem drivers i believe,
I read a thread that said to disable the lg virtual modem. (didnt
work for me)
pretty noob myself
but the above method worked for me,
not sure if this can do anymore damage to the phone

have a look at this is u get it into emegancy mode.
On the kdz updater instead of 3GQCT put into emergancy
http://www.youtube.com/watch?v=fDmU9RSIiDA

If you have tried flashing with Cm7 you might be lucky,
try holding camera button and powering on the phone, a black screen should come up thats fastboot.
if that comes up u should be able to just reflash following mur4iks instruction
if not try what i said in my last post and reflsh with phone type 3QGCT and PhoneMode EMERGENCY
again only going of how i fixed my bricked phone

ZxWelshyxz said:
If you have tried flashing with Cm7 you might be lucky,
try holding camera button and powering on the phone, a black screen should come up thats fastboot.
if that comes up u should be able to just reflash following mur4iks instruction
if not try what i said in my last post and reflsh with phone type 3QGCT and PhoneMode EMERGENCY
again only going of how i fixed my bricked phone
Click to expand...
Click to collapse
He was trying to flash a fastboot rom (to install CM7) but bricked his device in the process. So he can't flash CM7-.-

Yeah I know that but I mean when I got the error he has, I flashed with a stock 2.1 fastboot rom With Diag changed to EMERGENCY and was able to get on to fastboot mode (camera+power), I got the error again as i was flashing but the phone would load fastboot and not start up
If he can get lucky and get into fastboot like i did, a simple:
fastboot -w
fastboot flash boot boot.img
fastboot flash system system.img
fastboot reboot
should fix his problem or did i just get lucky?
sorry if im confusing thinks here, but this is how i fixed mine. which was also dead and not turning on
Sent from my GT540 using XDA App

@ZxWelshyxz
I am total neewbie, can you write to me some kind of tut, like press that then do that etc

gorantz said:
@ZxWelshyxz
I am total neewbie, can you write to me some kind of tut, like press that then do that etc
Click to expand...
Click to collapse
Well like i told you im a noob at this myself (Android phone flashing atleast)
I suppose it would be good to see if you got fastboot??
Power on the phone while holding camera button (hold the camera button until the screen goes black) if you can get fastboot you can just follow the fastboot flash instructions after fastboot -w
if not on kdz in the top right were it says DIAG, Change this to CS_EMERGENCY,Click Launch update and flash again with a stock fastboot rom
after THIS see if the phone loads or boot loops(had this once too) or loads fastboot
Il try look to find the thread i read on another forum for troubleshooting kdz it helped me alot
EDIT: http://android.modaco.com/topic/321895-faqgt540-reference-thread/ try some of the troubleshooting tips at the bottom of the O.P
I basicly aimed to get fastboot working so make sure your flashing with a stock FASTBOOT! rom
again im new to this im just saying what got my phone back to life

my fone stuck in download mood what can i do?

corecrack said:
my fone stuck in download mood what can i do?
Click to expand...
Click to collapse
Pull out the battery and turn on the phone again (if you have knocked the phone when turning on, or flash a KDZ (when connected to PC)

@gorantz
Can i advise to follow step by step tutorial pin pointed by lavero.burgos, am a total neewbie like u man,but now using latest CM7 by Mur4ik and waiting for new release from devs
Sent from my GT540 using XDA App

thanks, but my phone is now at service when I get it back maybe I'll try....but maybe

gorantz said:
thanks, but my phone is now at service when I get it back maybe I'll try....but maybe
Click to expand...
Click to collapse
I bricked my phone and I tried it again after getting it back from lg

I'm new here and to having a Smartphone, I've just been given an LG Android GT540 which is at version 1.6. The LG site tells me I can upgrade to 2 something or other, sorry can't remember the exact number and gives instructions on how to do the upgrade, but I'm a bit on the cautious side as I don't want to brick it, not this early on in owning my first Smartphone.
I'll be reading a lot of the posts here to try and find out as much as I can before I attempt to do this.

Well don't worry if it's official update. But if you some how brick your phone just tell lg the update bricked your phone and we are talking about unofficial updates
Sent from my GT540 using XDA App

gorantz said:
thanks, but my phone is now at service when I get it back maybe I'll try....but maybe
Click to expand...
Click to collapse
Dont hesitate to ask for help man its worth upgrading.
Sent from my GT540 using XDA App

I've got phone today from service (not official LG service), repairman just manage to wake up phone so I can turn it On, but when I turn it I get black screen with message on it ''download mode''. Now computer recognize phone when I plug it, and I tried to update or flash it with kdz updater but have no luck
I launch kdz in emergency mode, load rom with updater, press launch button, and process started, (get messages unpacking software etc.) but after 3-4 minutes I notice that computer is blocked I couldn't do anything with mouse pointer, and I waited 15 minutes but computer is still blocked, even time on computer is stopped. I tried this procedure few times, every time it is same. Also tried to disable lg virtual modem in device manager. Any idea what I could do ?
p.s. repairman in service told me that he tried it to flash it with riff box, process started but after few minutes if stopped and blocked his riff box

STUCK at LG Logo, NO Download mode..Please HELP!!

hi all,
I have posted my G2 problem in another thread but was hoping more people can see it and help me...
PHONE Stuck at LG Logo after power up.
NO Download Mode,
here goes..
Believed I was conned... and this could be what happened to my LG G2 'D802':
my mobile is actually a D801 phone (motherboard) NOT D802 but loaded with D802 ROM
Phone was flashed (by me) with D802 ROM to remove error "Unfortunately, the process com.android.systemui has stopped" caused by corrupted Build.Prop system file during some editing.
touch screen error after new ROM was flashed (tried many diff roms), likely due to incompatible phone settings.
unable to flash D801 kdz since the phone was configured to 'D802', incorrect model detected while trying to flash.
managed to get a D801 TOT file that can resolved the incompatible model issue
Flash completed, phone rebooted..STUCKED at LG LOGO!
pressed Vol+ and USB cable, cannot enter download mode...stucked..
Factory reset using hardware keys, same problem..
please help ! any suggestion/s would be greatly appreciated!! thank you!!

TEDET123 said:
hi all,
I have posted my G2 problem in another thread but was hoping more people can see it and help me...
PHONE Stuck at LG Logo after power up.
NO Download Mode,
here goes..
Believed I was conned... and this could be what happened to my LG G2 'D802':
my mobile is actually a D801 phone (motherboard) NOT D802 but loaded with D802 ROM
Phone was flashed (by me) with D802 ROM to remove error "Unfortunately, the process com.android.systemui has stopped" caused by corrupted Build.Prop system file during some editing.
touch screen error after new ROM was flashed (tried many diff roms), likely due to incompatible phone settings.
unable to flash D801 kdz since the phone was configured to 'D802', incorrect model detected while trying to flash.
managed to get a D801 TOT file that can resolved the incompatible model issue
Flash completed, phone rebooted..STUCKED at LG LOGO!
pressed Vol+ and USB cable, cannot enter download mode...stucked..
Factory reset using hardware keys, same problem..
please help ! any suggestion/s would be greatly appreciated!! thank you!!
Click to expand...
Click to collapse
use flashtool with another *dll

His download mode is not functional.
When in factory reset - connect to pc(does it throw errors or add a new device?)
If yes..then - read this
If no then still read it.

bender_007 said:
His download mode is not functional.
When in factory reset - connect to pc(does it throw errors or add a new device?)
If yes..then - read this
If no then still read it.
Click to expand...
Click to collapse
thanks for replying guys..appreciate it!
yes..download mode is not functional.
When connect to pc at 'Factory hard reset mode' screen (vol- and pwr pressed, letgo and pressed)..nothing happens on either PC or Mobile..
After Hard reset, phone continue stuck at LG LOGO.. PC detected mobile as "LGE AndroidNet USB Serial Port (COM41)", see attached.
I have tried the method in the link above but the PC seems cannot detect phone during cmd "ls /dev/sd*" and "gdisk -l /dev/sdb" .

someone please help..

TEDET123 said:
someone please help..
Click to expand...
Click to collapse
Hey,
I'm currently having some issue too but not the same it seems ..
Have you tried this: http://forum.xda-developers.com/showthread.php?t=2656275 ?
Hope it will help!

shark_max said:
Hey,
I'm currently have some issue too but not the same it seems ..
Have you tried this: http://forum.xda-developers.com/showthread.php?t=2656275 ?
Hope it will help!
Click to expand...
Click to collapse
hey thanks!
i have tried the method in the link but mobile cannot get into download mode...:crying::crying:

TEDET123 said:
hey thanks!
i have tried the method in the link but mobile cannot get into download mode...:crying::crying:
Click to expand...
Click to collapse
But you did in one of your screenshot ...
Anyway, when you let the phone continue to boot, what happend? lot of force close?
Edit : Antoher solution : have you tried to use the official LG Support tool? I did once when my device was completely f****ed up and it restored it by itself!

TEDET123 said:
hey thanks!
i have tried the method in the link but mobile cannot get into download mode...:crying::crying:
Click to expand...
Click to collapse
Just plug your cable to usb. Turn off phone and inmediately hold the button up and ull be in download mode.
Or If U have 801 rom try to root your phone and do recovery as 801 phone, after flash 802 rom !

shark_max said:
But you did in one of your screenshot ...
Anyway, when you let the phone continue to boot, what happend? lot of force close?
Edit : Antoher solution : have you tried to use the official LG Support tool? I did once when my device was completely f****ed up and it restored it by itself!
Click to expand...
Click to collapse
the screenshot stays forever (trying to get into download mode) and did not enter the actual download screen.
if continue to boot, the phone will just hang at LG Logo.

shark_max said:
But you did in one of your screenshot ...
Anyway, when you let the phone continue to boot, what happend? lot of force close?
Edit : Antoher solution : have you tried to use the official LG Support tool? I did once when my device was completely f****ed up and it restored it by itself!
Click to expand...
Click to collapse
LG Support tool was unable to detect my phone..

patriky said:
Just plug your cable to usb. Turn off phone and inmediately hold the button up and ull be in download mode.
Or If U have 801 rom try to root your phone and do recovery as 801 phone, after flash 802 rom !
Click to expand...
Click to collapse
I did this but phone just stays at the 2nd screenshot...
before it was bricked, I have no problem get it into download mode with vol+ and usb cable.

TEDET123 said:
LG Support tool was unable to detect my phone..
Click to expand...
Click to collapse
Wait so what can you do? Hard reset? Download mode? Nothing?
Can you plug your phone and check that your phone is not detected in device manager?
All the drivers are installed?

Same issue
I am having the same exact issue as TEDET123. !!! installed ubunto in one of my PC, tried the same procedure as explain at
http://forum.xda-developers.com/showthread.php?t=2582142&highlight=even+disconnect+lg+phone.
the ubuntu doesn't show any SDB !! need help!!! went to the famous lg software guy in my town. He said MMC chip needs to be replaced ! I knw he doesn;'t have its solution and trying to demotivate me thats it! I knw there must be a solution to this issue!

I would try to force the phone into qhsusb mode then flash only laf.img,aboot.img and boot.img
In qhsub mode you should be able to see the SDB partition
http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
FaseehUllah said:
I am having the same exact issue as TEDET123. !!! installed ubunto in one of my PC, tried the same procedure as explain at
http://forum.xda-developers.com/showthread.php?t=2582142&highlight=even+disconnect+lg+phone.
the ubuntu doesn't show any SDB !! need help!!! went to the famous lg software guy in my town. He said MMC chip needs to be replaced ! I knw he doesn;'t have its solution and trying to demotivate me thats it! I knw there must be a solution to this issue!
Click to expand...
Click to collapse

Same problem.

Same problem
now can i go back to fast boot mode?

someone please help..

Same problem, please helpp

Same Problem ...... flashing unknown rom and now stuck on LG logo and not entering to download mode please help !! Experts ??

D802 v30a ERROR: Boot certification verify - Secure boot error

Yesterday I flashed (CSE flash) v30a KDZ to recover my GPS which as having problems getting locks and it all went well, it seemed the GPS got back working.
Later I used the DP Root to root it and it went ok.
After using the DP REC (if required for evaluation, please inform), my phone rebooted and it showed me the following message:
ERROR : boot certification verify
[1040] ------------------------------------------
[1090]
[1140] Secure booting Error!
[1200] Cause : boot certification verify
[1250]
[1300] ------------------------------------------
Click to expand...
Click to collapse
Then goes to this:
------------------------------------------
Critical Error!
------------------------------------------
Demigod Crash Handler : Critical Error!
Press key to choose Dload Mode or Reboot.
1) Volume Up : Dload Mode
2) Volume Down : Reboot.
If you choose Dload Mode,
Please do following action.
1) Dload Mode. Please connect USB.
2) Get the ram dump image using QPST Configuration.
------------------------------------------
Board Info
rev. : 1.1 speed,pvs : 1,2 serial : XXXXXXXXXX
------------------------------------------
Click to expand...
Click to collapse
Pressing the power button for more than 13s I can shut it down so that I can try the Volume Up + connect USB, but then it just powers the phone on and starts the above stated.
By pressing the Volume down + Power and pressing again after the LG Logo shows up, I can go to the reset screen but at the finish it doesn't show the factory reset or TWRP, just starts the sequence of screens above.
By pressing the Volume Up on the Demigod Crash screen, it show the following message:
Volume Up is pressed : Jump to Dload Mode.
Click to expand...
Click to collapse
and stays that way, but then the computer recognizes the "LGE AndroidNet USB Modem" and "LGE AndroidNet Serial Port", no more LG stuff there, and the LG Flash Tool doesn't go past 4%.
On Ubuntu it recognizes the same devices, but doesn't get the partitions
Does anyone know any way so that I can get out of this?

Hi @darknessmessiah,
Any luck with your issue? I've received a strikingly similar result after attempting to flash the stock lollipop to my LG G2 801 from the T-mobile forum.

jjmontem said:
Hi @darknessmessiah,
Any luck with your issue? I've received a strikingly similar result after attempting to flash the stock lollipop to my LG G2 801 from the T-mobile forum.
Click to expand...
Click to collapse
Hi there! Yes, I got to get it back... But it was this hard
Anyway there goes some tips:
After you remove the battery plug, you only need to put it back after everything is done.
You have to keep trying the short circuit until you get a new hardware called "Qualcomm hs-diagnostics 9006" and you computer recognizes a lot of disk partitions. The normal device my computer recognized was "Qualcomm HS-USB QDLoader 9008" and no tip out there worked.
When the computer recognizes the wrong device, remove the USB, plug it back and try again. One time it recognized one whole 32GB partition, but thankfully I didn't try anything besides removing the USB and try again.
After everything, I got Download Mode back and, after some tries (I've got some errors), got the flashtool to flash the ROM back.

jjmontem said:
Hi @darknessmessiah,
Any luck with your issue? I've received a strikingly similar result after attempting to flash the stock lollipop to my LG G2 801 from the T-mobile forum.
Click to expand...
Click to collapse
infect you need to fix the download mod
i can fix plz contact me https://www.facebook.com/faheem.anjum2

Wow, that's miserably complicated. And to show you my naivite, I wasn't aware that one could enter download mode by plugging in the phone to a computer with a USB cord, and holding the volume up button as it started up. My phone successfully entered download mode and I was able to use LG Flash Tool 2014 to return my phone to Stock 4.2.2 using this thread and a KDZ I had long ago stored.
Thanks for the help though!
darknessmessiah said:
Hi there! Yes, I got to get it back... But it was this hard
Anyway there goes some tips:
After you remove the battery plug, you only need to put it back after everything is done.
You have to keep trying the short circuit until you get a new hardware called "Qualcomm hs-diagnostics 9006" and you computer recognizes a lot of disk partitions. The normal device my computer recognized was "Qualcomm HS-USB QDLoader 9008" and no tip out there worked.
When the computer recognizes the wrong device, remove the USB, plug it back and try again. One time it recognized one whole 32GB partition, but thankfully I didn't try anything besides removing the USB and try again.
After everything, I got Download Mode back and, after some tries (I've got some errors), got the flashtool to flash the ROM back.
Click to expand...
Click to collapse

jjmontem said:
Wow, that's miserably complicated. And to show you my naivite, I wasn't aware that one could enter download mode by plugging in the phone to a computer with a USB cord, and holding the volume up button as it started up. My phone successfully entered download mode and I was able to use LG Flash Tool 2014 to return my phone to Stock 4.2.2 using this thread and a KDZ I had long ago stored.
Thanks for the help though!
Click to expand...
Click to collapse
Well... You were in a better situation than myself... holding the volume up and plugging the USB didn't work for me either... It was heavily messed up!

hi do you find solution
---------- Post added at 09:53 PM ---------- Previous post was at 09:48 PM ----------
i have same probleme with my lg g F320L can anyone help ?

[Q] DemiGod Crash Handler : Critical Error! Plzz Help Someone

my phone LG G2 D802 International Version was running perfectly fine i tried to flash another rom by LG FlashTOOL and in the first i got soft bricked on that fastboot screen i recoverd it by ADB (fastboot.exe)
fastboot erase recovery
fastboot erase laf
fastboot flash laf laf.img
and then i tried to reflash it then i got this mesg on screen
---------------------------------------------------------------------------
Critical Error!
---------------------------------------------------------------------------
DemiGod Crash Handler : Critical Error!
Press Key to Choose Dload Mode or Reboot
1) Volume up : Dload Mode.
2) Volume Down: Reboot.
If u choose Dload Mode.
please do following action.
1) Dload Mode. please Connect USB
2) Get the Ram Dump image using QPST Configuration.
-------------------------------------------------------------------------
Board Info
Rev. : 1.1 speed.pvs : 1.1 Serial : 01e862cf934fc622
Please Help me somebody ... i cant afford to buy new phone i just bought this phone a week ago ..

Having same issue ! XDA forum experts always helped me with every situation with my phones. Expecting help this time as well from you experts.

Same here, enyone can help, i stuck with the sam message, presing vol- just rebots, and vol+ sends message "jump to download mode" but i cant flash stock firmware

i have the same problem any help ??

I have the same issue too, can anyone help?

I heard that this can help you guys. Use the search option there and try to fix it. Actually i had the same problem few months ago, but for me mew motherboard was the solution... If you're device is under warranty send it saying it failed while taking OTA. Good luck...

lg g2 critical error
I have done a flash to my g2 32gb d802 and it suddenly entered into critical error not going into any of thefastboot mode or download mode even though it is giving me options.....please any one help me out to get my phone back to normal ........

PM me if you guys need help.

I had the exactly same problem, and I had to go to afterservice center to repair. Engineer told he would wipe everything and install new rom. but He failed to write rom so he simply changed mainboard.
At first I had thought about open my g2 and makes it go into qualcomm download mode by short-circuit.
the reason I didn't was my warranty was still available.
I tried every method to make it boot into recovery or download mode but I failed. In my opinion, you may try short-circuit method for last solution. In this situation, even linux doesn't mount rom's storage section. Only if you can make G2 recognized in Linux, G2 will revive.
good luck.

xmayhemreturnsx said:
PM me if you guys need help.
Click to expand...
Click to collapse
i still don't know what to do HELP

yassou92 said:
i still don't know what to do HELP
Click to expand...
Click to collapse
The best way to go if you do not have a warranty is to short circuit the board and get into Qualcomm ... 9006 mode. However, when you get the demigod error plug in you usb and click up and it should start download mode even though it doesn't show it.

xmayhemreturnsx said:
The best way to go if you do not have a warranty is to short circuit the board and get into Qualcomm ... 9006 mode. .
Click to expand...
Click to collapse
How do you short the pins? There's a guide here on xda but it's so difficult to undestand. I need to know how can I short the pins.
it should start download mode even though it doesn't show it.
Click to expand...
Click to collapse
No, it doesn't. I try to use flashtool but it doesn't recognize the phone. No download mode in any method I tried

I got into this error after I had previously recovered into qhs_usb9006_bulk mode from a hard bricked D801, by shorting the capacitors on the main board. After entering qhs_usb9006, I used srk tools 2.1 for my phone, and after they finished, I tried entering download mode, only to get into this error. I really don't know what it is to say about this. Everything turned wrong with this phone, it went from simply failing a .kdz, to stock .tot, to hard brick, and now to this error, whereas it should've just enter the download mode, as for the 99,99% of the others. Any help would be really appreciated. Thanks.
L.E. I shorted the capacitors again (the one i the middle, like I did the first time, when i got into 9006 mode. 5000 and 5004 didn't work for some reason). This time I got into dload mode, which is 9008. I'll try to recover the phone from here, with this method:
http://forum.xda-developers.com/lg-g2/general/fix-unbrick-lg-g2-stuck-qualcomm-hs-usb-t2933830

i had this problem while trying to return to stock. Fixed it by following this guide http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404 . it needs some hardware tampering though. i tried and tried but i cant flash the phone any other way. the way i understand this is due to bootloader being corrupt.

I installed autorec from playstore solved all the problems

Than you! autorec worked for me too

Can someone post a KK baseband for D801 (T-Mobile)? I'm on D80120a software version with unknown IMEI and baseband (the phone is a D801 refurbished into D802, I more than hardbricked it by flashing wrong .kdz, got it recovered through shorting pins, 9008 mode, got download mode, D80120a stock, root, twrp, after a very long and painful process of about 1 month). Now I have to make use of QPST, but I have to obtain a valid baseband first. Of all links I've stumbled upon, only 5% or less of them are still working, so I only have one flashable modem, in twrp recovery, which corresponds to D801 jb version.
http://downloads.codefi.re/autoprime/LG/LG_G2/G2_modems
cloudyfa kk_baseband_D801 only make my phone restarts like crazy.
I'm simply stuck and pray for some devine help.
Thank you.

Weird enough, I flashed a canadian modem and I got both baseband and IMEI. Why did I do that in the first place? Because I remembered that before all these things happened to my phone, the baseband was M8974A-AAAANAZM-1.0.190082, which corresponds to D803. So I said to myself what can happen by flashing the wrong modem? Boot loop, easily fixable with the phone in it's current state. But again, after 1 month of trouble with the phone, I'm back to what exactly started it in the first place: phone seem to work OK but it has 2 huge problems: WiFi extremely weak (2 meters away and a wall or 5 meters away and no wall a and I lose the signal in both cases; the 2nd is wit the GPS - 20-30 meters error). No idea how should I adapt the radio to Europe region (by keeping the canadian one and change the settings, if it's even possible/fixable this way or if this even does make any sense).

I had to do a hard brick fix to get it into the QSUSB mode to flash TOT.

Have you tried using LG Support tool to put it back to stock?
Sent from my LG-F350K using XDA Free mobile app

[Q] Any advice for bricked G2 [D802] make unbrick ?

Hi everyone, i have a G2(D802) which i have used for 5 years. Yesterday, when i turn off the screen then try to turn on it didn't. I tried to reset with holding power button like 20-25 seconds. It stucked at LG logo. After many reset nothing happened. Then this morning i could was able to open my phone, so i thought it was a problem about software things, so i backuped everything and change my rom(i was using Lineage 14.1 ) to Resurrection Remix. But same thing happened, when i turn off the screen it has gone again. So i decided to install stock rom back. But this time when i used Flash Tool 2014 and appropriate KDZ, it stacked at 4%, after trying different cables, ports,windows 7/xp and programs (like LG Mobile Support Tool, LG Up) in Device Manager it seemed as : "qualcomm hs-usb qdloader 9006" and no recovery mode no download mode, when i google this problem i found it named with "qhsusb_bulk" and i found this article and successfully recover download mode. Now in Device Manager it seems as "LGE AndroidNet USB Serial Port".
TLDR: I can only open download mode, no recovery, it stacked LG logo, when i use Flash Tool 2014 or LG Mobile Support Tool with different KDZ/TOT it stacked at 4%. What should i do? What's wrong with my phone? I need your help urgently because i have no other phone. Thank you for reading.

metobayrak said:
Hi everyone, i have a G2(D802) which i have used for 5 years. Yesterday, when i turn off the screen then try to turn on it didn't. I tried to reset with holding power button like 20-25 seconds. It stucked at LG logo. After many reset nothing happened. Then this morning i could was able to open my phone, so i thought it was a problem about software things, so i backuped everything and change my rom(i was using Lineage 14.1 ) to Resurrection Remix. But same thing happened, when i turn off the screen it has gone again. So i decided to install stock rom back. But this time when i used Flash Tool 2014 and appropriate KDZ, it stacked at 4%, after trying different cables, ports,windows 7/xp and programs (like LG Mobile Support Tool, LG Up) in Device Manager it seemed as : "qualcomm hs-usb qdloader 9006" and no recovery mode no download mode, when i google this problem i found it named with "qhsusb_bulk" and i found this article and successfully recover download mode. Now in Device Manager it seems as "LGE AndroidNet USB Serial Port".
TLDR: I can only open download mode, no recovery, it stacked LG logo, when i use Flash Tool 2014 or LG Mobile Support Tool with different KDZ/TOT it stacked at 4%. What should i do? What's wrong with my phone? I need your help urgently because i have no other phone. Thank you for reading.
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hi there.. unfortunately LG did a mess in my opinion! After buying G2 and G Pad I will never buy LG again because of this..
anyway, assuming you're doing everything as described into the guides (like port COM 41, copy the right DLL file etc) there is one thing I would try in your situation: trying with a different PC, in particular a Windows 7 / XP one..
also I read that sometimes this issues was randomly gone after trying and trying and trying and trying and trying..! If available I would also try different KDZ firmware (but be sure it's for your model.. as long as it is it doesn't matter if it's JB, KK or LP)

brainvision said:
hi there.. unfortunately LG did a mess in my opinion! After buying G2 and G Pad I will never buy LG again because of this..
anyway, assuming you're doing everything as described into the guides (like port COM 41, copy the right DLL file etc) there is one thing I would try in your situation: trying with a different PC, in particular a Windows 7 / XP one..
also I read that sometimes this issues was randomly gone after trying and trying and trying and trying and trying..! If available I would also try different KDZ firmware (but be sure it's for your model.. as long as it is it doesn't matter if it's JB, KK or LP)
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Thank you for your suggestion, after several hundred attempts i successfully go back to stock rom(an Indian stock rom which i found it in storagecow link), but the problem is; when i turn off the screen, i can not open again, and it restarts and stuck at lg logo. After hundred times reset, phone started normally, then i flash a twrp recovery (with autorec) and go recovery. This time twrp said Unable to Mount System,Storage etc. so twrp shows internal storage: 0mb and all folders(data,sdcard,system etc.) empty. I mean define this problem is very hard and i think it is very rare problem. I'm not sure which part of the phone is the problem. I don't know is this a hardware problem or a software(like wrong partition or something like that) problem.

metobayrak said:
Thank you for your suggestion, after several hundred attempts i successfully go back to stock rom(an Indian stock rom which i found it in storagecow link), but the problem is; when i turn off the screen, i can not open again, and it restarts and stuck at lg logo. After hundred times reset, phone started normally, then i flash a twrp recovery (with autorec) and go recovery. This time twrp said Unable to Mount System,Storage etc. so twrp shows internal storage: 0mb and all folders(data,sdcard,system etc.) empty. I mean define this problem is very hard and i think it is very rare problem. I'm not sure which part of the phone is the problem. I don't know is this a hardware problem or a software(like wrong partition or something like that) problem.
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so ROM is flashed but no files are anywhere? Did the same happens when you browse the device with the windows command Prompt / Linux Terminal?
Yea anyway weird, maybe you can see if this tool has original partitions for your model: https://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076 - please pay attention if you do it and backup the partitions you have atm before

brainvision said:
so ROM is flashed but no files are anywhere? Did the same happens when you browse the device with the windows command Prompt / Linux Terminal?
Yea anyway weird, maybe you can see if this tool has original partitions for your model: https://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076 - please pay attention if you do it and backup the partitions you have atm before
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I used this tool when my phone showed in Device Manager as : "qualcomm hs-usb qdloader 9006" and it worked, today when i opened my phone(after install stock rom again) i kept the screen always open. After 5 minutes, suddenly screen gone and stuck at lg logo. Now I think that the problem is definitely hardware. Because i did nothing and phone was connected with a cable to my pc. If the solution is to change a part(like the processor) inside the phone, I will write here what the problem part is. Thank you again.

metobayrak said:
I use this tool when my phone showed in Device Manager as : "qualcomm hs-usb qdloader 9006" and it worked, today when i open my phone(after install stock rom again) i kept the screen always open. After 5 minutes, suddenly screen gone and stuck at lg logo. Now I think that the problem is definitely hardware. Because i did nothing and phone was connected with a cable to my pc. If the solution is to change a part(like the processor) inside the phone, I will write here what the problem part is. Thank you again.
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pretty sure it's the mainboard, I saw it's the first part of the G2 that gives problem after a while

brainvision said:
pretty sure it's the mainboard, I saw it's the first part of the G2 that gives problem after a while
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I found the problem part. It's the eMMC chip. I disassemblied the phone and heat the relevant chip (on my motherboard the chip named as Toshiba) with hot air gun. My phone worked properly for 1 minute, then gone again.

metobayrak said:
I found the problem part. It's the eMMC chip. I disassemblied the phone and heat the relevant chip (on my motherboard the chip named as Toshiba) with hot air gun. My phone worked properly for 1 minute, then gone again.
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you know what: I think my device has the same issue, eMMC is damaged.. I'm not using the G2 as primary or secondary device anymore but from time to time I like to flash something and using it.. but it's almost one year that when stuff I have no error but when I boot the device and start using it I have random reboots.. but they are totally random and almost happen when installing one app, using a system app or something like that. it happens with both stock firmware both with custom ROMs.. basically I have to flash and using the device for a day and if I have less then two reboots in that period I go on..
I'm not an expert about hardware matters, do you mind linking me a video on YouTube about what have you done with the airgun? Also I tried to search for spare eMMC but I wasn't able to find any (some time ago) so the option would be to change the motherboard.. did you find something instead?

brainvision said:
you know what: I think my device has the same issue, eMMC is damaged.. I'm not using the G2 as primary or secondary device anymore but from time to time I like to flash something and using it.. but it's almost one year that when stuff I have no error but when I boot the device and start using it I have random reboots.. but they are totally random and almost happen when installing one app, using a system app or something like that. it happens with both stock firmware both with custom ROMs.. basically I have to flash and using the device for a day and if I have less then two reboots in that period I go on..
I'm not an expert about hardware matters, do you mind linking me a video on YouTube about what have you done with the airgun? Also I tried to search for spare eMMC but I wasn't able to find any (some time ago) so the option would be to change the motherboard.. did you find something instead?
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This is the video I get help with: https://www.youtube.com/watch?v=ft8V5yrQFic
this guy did this for g3 but doing for g2 also works. This is definitely a temporary solution. It works maybe just 1 minute (like me) or 1 hour if you are lucky maybe 1 month. Changing motherboard is primary solution but it is expensive and worthless. I think that is chronic problem for LG G series. There is no proper heat dissipation on the motherboard. They have just put thin metal plates. Maybe you can try after the heating process, just put a thermal pads the relevant chipsets. You can see from this video: https://www.youtube.com/watch?v=HMdvG6w7etU

metobayrak said:
This is the video I get help with: https://www.youtube.com/watch?v=ft8V5yrQFic
this guy did this for g3 but doing for g2 also works. This is definitely a temporary solution. It works maybe just 1 minute (like me) or 1 hour if you are lucky maybe 1 month. Changing motherboard is primary solution but it is expensive and worthless. I think that is chronic problem for LG G series. There is no proper heat dissipation on the motherboard. They have just put thin metal plates. Maybe you can try after the heating process, just put a thermal pads the relevant chipsets. You can see from this video: https://www.youtube.com/watch?v=HMdvG6w7etU
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I thought about applying something (couldn't imagine what however) on the internal back of the cover but not because of the issues I have but simply because the device get hot very soon! I'
But basically you are saying that this issue related to the eMMC is not because the chip is damaged but only for the temperature it reaches?

brainvision said:
I thought about applying something (couldn't imagine what however) on the internal back of the cover but not because of the issues I have but simply because the device get hot very soon! I'
But basically you are saying that this issue related to the eMMC is not because the chip is damaged but only for the temperature it reaches?
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Yes, because of the eMMC chip is damaged. But the crux of the problem is processor heats and cause of no proper heat dissipation this damages other chipsets. Thermal pad solution must be done after chip replacement.