[HELP] DemiGod Crash Handler : Kernal Crash (Can access recovery) - G2 Q&A, Help & Troubleshooting

Phone Model: AT&T LG G2 (D800)
Recovery: Custom TWRP Recovery
ROM: CM12 Official ROM
My phone was working fine from last 3-4 months, until today it restarted and got stuck on 'LG' logo, I left it for some time and it shows the demigod green screen of death with option to access download mode and restart.
What I already did!
1) Full hard reset, I can access the TWRP.
2) Flashed the ROM again.
Current Situation!
Stuck on LG logo from last 10mins.
Thanks in advance.
Edit #1: Reflashed the same ROM (CM12) and it booted into the language selection page, freezes and restarted. Stuck on black screen, I turned it off by pressing the power button for 10-15 secs. I kept it in a freezer for 10-15secs and turned it on, same happened.
Edit #2 I flashed a stock based ROM through TWRP, it was going fine but it froze in between, I waited for some time and it went black. I waited for 1 hr and it was still black so I hold the power button and restarted the phone.
Now its showing "Secure Boot Error" which remains for some secs and a black screen comes, I can't open TWRP, Download mode is accessible but after 2 secs into download mode, secure boot error comes. Whenever I try to connect it to Windows PC(I installed all the required drivers and all) it starting popping up drives(with option to format) which never stops until I remove the USB cable.

Hi!
In this thread someone posted a solution.
jazibzps said:
Steps to perform.
1. While in critical error screen you have an option to press volume up button to boot into download mode( although it will not boot to download mode) but still press volume up button so your Pc can detect your phone.
2. Now flash a kdz file of your lg g2 with flash tool. ( you can google for it to download flash file for your lg g2 and how to flash it with lg flass tool.)
3. When you will try to flash it will fail..
4. Now power off your phone by pressing power button.
5. Now boot to download mode and flash the correct kdz with lg flash tool and u r good to go..
To acess download mode power off your phone immediately press volume up button and while keep pressing it and plug in usb cable and you will be in download mode
I performed all this on lg g2 d801 but i hope u can try it on other varients as well. As i was scared of short circut method and srk tool didn't help..
Click to expand...
Click to collapse
For informations about LGs flashtool etc. please check out the G2-Index-Thread.

Jan Philipp said:
Hi!
In this thread someone posted a solution.
For informations about LGs flashtool etc. please check out the G2-Index-Thread.
Click to expand...
Click to collapse
Thanks for replying.
My case is a bit different now, I reflashed the same ROM(CM12) and it successfully booted, worked for 10 secs and it was frozen, restarted automatically, stuck on LG Logo.
I notice that there's some heat issue, I kept it in freezer for 10 secs, rebooted it, it booted till language selection page and freeze after 10-15secs.
Also the link is for DemiGod Critical Crash, mine is DemiGod Kernel Crash.

Updated!!
First post updated, please check the current situation before posting anything.

I don't have a computer or laptop to connect it to so how can I fix it?

Related

[Q] Update to 4.4.2 and since the device is bootloop and no recovery

I bought a LG g2 D802 32G with root a few days ago , I tried to upgrade to 4.4.2 stock from this guide. The upgrade was completed
Then the device turns on ,frist LG logo ,then the Attached image and after a second shuts down and back on, with stuck LG logo with led change colors.
I can't get into the recovery mode with any method, only download mode. I tried to flash another versions, it completed but the same problem ...
Also, when i enter into download mode written down in a frame rooted in red, but i flash a stock ROM in "Flash CSE" mode... can be recovery mode screwed? And that's why the device does not work?
I tried also via LG Support Tool same problem ....
Reset my strength
How do I fix this?
please try to help?
ohad123 said:
I bought a LG g2 D802 32G with root a few days ago , I tried to upgrade to 4.4.2 stock from this guide. The upgrade was completed
Then the device turns on ,frist LG logo ,then the Attached image and after a second shuts down and back on, with stuck LG logo with led change colors.
I can't get into the recovery mode with any method, only download mode. I tried to flash another versions, it completed but the same problem ...
Also, when i enter into download mode written down in a frame rooted in red, but i flash a stock ROM in "Flash CSE" mode... can be recovery mode screwed? And that's why the device does not work?
I tried also via LG Support Tool same problem ....
Reset my strength
How do I fix this?
Click to expand...
Click to collapse
Using the flash tool will take your phone completely back to it's original factory state and that includes the recovery. If you get stuck in a bootloop after using this method, you should be able to fix it by performing a hard factory reset.
When the device is powered down hold the volume down button. While pressing volume down press the power button. After the device kicks on release both buttons. As soon as the LG logo appears press the power button a second time. It's a little tricky at first but if you have done it correctly it should go into a white screen asking you if you would like to perform a factory reset. Go ahead and reset the phone.
This should fix your problem and boot you up into a fresh install.
I tried this but it dose not work, I can't get into the recovery mode. the g2 stuck LG logo....

LG G2 stuck on logo, no recovery, download mode not working properly

Hi everyone,
After trying to flash the resurrection remix rom on my LG G2 D805, i got stuck on the logo, with no recovery mode, and on download mode it says "USER B3" or "USER B4" and rooted, and when i try to flash the kdz file it says "upgrade stopped due to an error". Also, the phone if not on download mode is not recognized by windows, and on download mode, on device manager, its recognized as "USB composite device". Furthermore, I don't know if this have anything to do with the issue, but on the same day i tried to flash the rom, in the morning the phone was REALLY hot, even burning my hands, and not turning on, so i left it cool down and then it was working properly when i decided to flash the rom... Do you guys think there is any way to get my phone back working?:crying:
Thank you all for your time!
Are you positive you cannot enter recover. Try this. Hold the power button for 30 sec. Then hold volume down and the power button simultaneously until you see the lg logo. When you see the logo quickly let go of the buttons and reclick them immediately. It should go to factory reset screen. From there continue and you should boot into twrp.
Sent from my LG-D800 using Tapatalk
Nope, doesn't work. The phone just keeps rebooting and after pressing both buttons gets stuck on the logo, or just turn the screen off and start blinking a red led...
what g2 model do you have? if you are in the screen of user b3 or user b4 and the word rooter with red color as you mentioned then you are in download mode, now if kdz is not working the other method you have is TOT method, if there is no tot files for your g2 variant try to uninstall and then reinstall the drivers and then try flash kdz again or also you can try with fastboot commands to return to recovery
Thank you so much! I found the TOT files and could save the phone, problem solved

D802 dead, data restore

Hey,
I have D802 16GB with pre-last CM version. Wanted to restart the phone (no mods nor installing apps before, just a normal restart) and the trouble started:
-it was stucking on LG logo and then screen turning off; sometimes it came to CM boot animation followed by turned off screen
-managed to boot the phone in safe mode in order to backup files from the phone, it freezed and turned off. Booted in safe mode few times again, the freeze was coming faster and faster
-once or twice phone booted up normally, freezed very soon
-booted to safe mode couple of more times. I noticed the phone was freezing shortly after releasing the volume buttons.
-booted up in normal mode, was holding the volume up button during the boot. The phone worked normally, after couple of mins released the volume button. Few mins after the phone freezed.
-LG logo was shown few more times out of dozens of attempts with different power button and volume buttons combinations
-LG logo showed for a short moment after pluging the charger
-now nothing happens at all, even when connected to charger or PC. The computer doesn't detect any device.
I really want to get the data that are in internal memory of the phone. What should I do? What happened with my phone?
Found this:
https://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
but will the internal memory data be affected? Moreover, there is written:
12 After attaching buttons plate,check your device going into download mode, and use flash tool to flash stock rom.
Click to expand...
Click to collapse
On the phone is CM which is not stock ROM, can I proceed?
Each advice will be much appreciated

LG G2 D802 No recovery/ No Donwload Mode/ No Fastboot

Hi Guys,
I got my G2 back from my brother who have not using it for a while.
1st day it was working. I plan to install Lineage or custom ROM today...thats when the issue start:
1: it wont go to recovery mode. Even thou I have rooted and install latest TWRP it will only boot to Hardware control key screen, only this screen and wont boot to the OS it will be stuck on LG logo forever....
2: tried to go to Download mode....the same It will go to the same hardware control key only....
3: when I plug in to my PC it wont turn off, keep on restarting after I press the power button for a while.... only if no cable connected I can totally turn it off...
For a noob like me....looks like my G2 D802 is brick :crying: ...any suggestion?
PS: windows detect it( As below picture ), off at all when I plug in AC.....It Will just show the LG logo and the LED just flashing non stop until I pull out the cable and turn it off...
This is what shown on the laptop No Disk1/2/3/4/5 of sort showing on the Device Manager and on the phone each time I try to go recovery or download mode belowh happen:
https://flic.kr/p/QH2HzE
https://flic.kr/p/2bs67ne
Update 1: I found out why the phone was brick. Seems like my Brother ask his friend to install Lineage 15.1 on the it. After everything is verified ok. He wipe and try to flash the rom in TWRP but.....it failed and suddenly just freeze and turn off the screen. Maybe bad ROM download or some step miss....so now the Phone has NO OS and would not boot to anything only the Hardware Key Management....that's all....help? Need the phone as 2nd phone for company lines....dont wanna take the iPhone 6 from my boss....
help?

[SOLVED][LG-US997]No ROM | Installed wrong .img into recovery | Stucked in LG logo |

As the title says, I've messed up my device.
There's no ROM and I have installed a wrong .img in recovery.
The phone does turn on and remains in the LG logo screen until battery dies. Power button doesn't work, meaning I can't turn it off. However I can press Power + Vol down but it only restarts the device and gets stucked in the logo again.
This device had twrp and I wanted to install stock recovery and stock ROM, but well, I've messed it up. I want to turn download mode so I can install stock .kdz, but I can't do it because I can't turn it off.
I waited long enough for the battery to die, but whenever I plug the phone on, it immediately goes to LG logo.
Is there anything I can do? Any tip is helpful. Thanks for your attention!
I'm not a specialist, but it helped me a long time ago, I had the same problem. Download a .kdz file compatible with your ARB version and use UPPERCUT, I think you must enter the download mode before.
I saw somewhere guide on the forum, what and how, do research.
Good luck
Thanks! I have managed to enter download mode, I had to do it in the right timing before it booted again. I followed this post https://forum.xda-developers.com/lg-g5/how-to/bring-lg-g5-to-life-download-mode-lgup-t3565508 which was very useful. Now I have my phone in stock. :highfive:

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