I can't boot my LG G2 since I attempted to install Cyanogenmod 13 to it. It is not a "Security Error" that I can fix by flashing to stock rom. When I press and hold the power button it usually shows nothing, but sometimes it shows the logo for half of a second and goes black. I can't acces download mode or recovery, and when I tried to connect it to my pc, it opened dozens of driver(like C:\, D:\) errors, so I plugged it out and all of them gave error by saying can't open, parameter error, format the disk etc. I really need urgent help!
By the way I had downloaded opengapps and cyanogen mod 13 when I was able to access twrp.
I should add this: it continues working there is a shining black screen all the time. If I try booting it when it is out of charge, would it work?
P.S: When I connect it to a PC this shining black screen is winking.
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I might have bricked my LG G2.
Here is everything I did:
-I rooted the phone with the IO root kit
-wanted to installed a recovery so I installed TWRP manager
-applied SD card patch
-tried to install recovery with TWRP manager several times but app always crashed
-installed SDK on the PC
-started adb and executed "adb reboot bootloader"
the phone got a backlight screen and hasnt been reacting so far.
When I held the power button the screen went black but sometimes the backlight appeard again. I don't know how to reproduce the backlight though.
adb can't detect the phone when connected to the PC.
As soon as I plug it in dozens of Partitions show up. Windows show an error message for each of these partitions. It says I have to format the volumes to use them.
After testing I realized that everytime i long-press the power button for a few seconds the windows errors start popping up.
When i long pressed the power button for 30+ seconds to completely shut it down the notification LED started blinking red 8 times in roughly second intervals. then there was a short break and the 8 blinks repeated.
Thank you for all help, it would suck to have a 1 day old phone broke...
You probably chose the wrong device in TWRP Manager. Choosing the wrong device can easily lead to a brick because TWRP Manager may attempt to flash to the wrong partition. The G2 does not have a TWRP Manager flash available due to loki, so you couldn't have chosen the right device.
Almost have the same problem... the only difference is my black screen is blinking continuously while it is connected to the mac... Seems like it tries to boot but gets blocked and retries in a loop. Tried around now for two evenings without any progress...
Anybody who can help?
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
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?
Hello everyone,
It's the second time I have a problem with my LG Spirit but now I seem unable to do anything
About month ago my LG was getting stuck on LG loading animation but then I managed to flash it via Download Mode and LG Flash Tool. Everything went fine and the phone was operational till today.
After battery had gone flat I plugged it to recharge but "Security Error" occured.
While plugged in it constantly shows the error message and reboots again and again.
Of course, I tried flashing via Download Mode but in vain. Although Download Mode shows up, a message "Secure booting error. Cause: Boot certification verify." appears, the screen blinks in blue colour and turns off.
Any PC with any USB wire recognizes the LG. Debugging mode is switched on, but no modifications such as TWRP, etc. were ever made.
I also managed to restore default settings, but with no results.
Any ideas what to do?
Thanks in advance
I saw this thread earlier, maybe it can help you?
https://forum.xda-developers.com/lg-spirit/help/help-lg-spirit-h440n-access-to-download-t3623333
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?