Hello all,
Recently My LG G2 broke for no reason . I was playing music and then it just stopped working. Then it stuck at booting loop logo.
Then I tried LGFlash tools 2014 with AU Vodafone D802T30a_00.kdz. It started firmware update but there was some error came in and asked me to remove battery and connect to micro USB again and retry.
But It did not work and stuck at the firmware upgrade screen.
Then I tried using SRKtools_2.1_droidth.zip, and tried to unbrick it. but I think it did not work properly. I remember my phone is not rooted.
Currently if I try to start my phone I see only LG logo and then it turns off.
If I try to connect it to the laptop, it opens lost of different drives and asks me to format but doesn't allow formatting due to write protection.
I tried to root the device using SRK tools but it is not recongnising device or asks me to select device in manual mode.
Can some one please help me in this situation. I want make my phone back in Life....
THank you
AMoL
Hey, how are you?
Well, I tell you my problem.
It turns out that some time ago I was damaged and my LG P700 logo with its ROM Stock stuck in me, after that I tried to flahear with the KDZ but when I had been flashing for a while I cut the light and the cell phone stayed on Emergency mode and I turned off the rage and save it a few days ago I connected it to the PC and in the Device Manager it appeared as Unknown Device and it did not turn on neither in Emergency Mode nor in Recovery or in anything, inquiring for this same forum. I realized that it was a Hard Brick and I want to know how to do it with this phone model. I would appreciate all the help possible. On the PC I have Win 10 Pro and I have the latest LG drivers and the Unknown Device still appears in the Device Manager.
I have tried all the possible combinations, I charged the battery completely with a universal charger, I have left the phone connected to the PC more than 5 hours, I have kept the power button on the phone for around 15 minutes and none of them has worked for me. Please help me.
Excuse my English, I'm from Venezuela and well
After 6 years of honorable service, LG G2 apparently died today.
The phone is stuck on LG logo and keep on reboot.
Download mode seems functioning, so i tried to use flash tool 2014 with stock .kdz image (Lollipop d30 16gb \ Italy).
Installation go on the phone (displaying COM7 and loading bar) since to 30\40%, then it suddenly lose usb recognition and the sound of plug - unplug is reproduced on loop.
Hope to has explain the issue properly. Is my phone totally dead, or there's something to try to revive it?
Gratefully thanks to anyone reply.
Added the log.txt from lg flash tool:
Im sorry if the topic had been already discussed, I tried with search but I didn't find anything for my case. Any help will really be useful...
Hello all I hard bricked my Stylo 2 plus several months ago by accidently flashing the wrong file. The device won't power on and won't go into DL mode or Edl. The screen lights up when the battery is removed and plugged in with the typical no battery warming icon and shows as LG Android Net USB serial Port. I've tried using LG UP, LG Bridge, LG Flashtool 2014 and 2016(patched). Which either don't detect it or show unknown model. I've tried several different Kdz for the device and corresponding dlls but no luck. I was on lineage 15.1 before I bricked it. Through my research it seems I need to short the pins on the mobo to cause it to enter Qualcomm mode. Online problem is I have no idea what pins to short. Does anyone possible have an idea of which to use if so please let me know. Because this could also help many of those out there with a bricked Stylo 2 plus as well. Thanks again for any assistance.
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.
Click to expand...
Click to collapse
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)
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.