[Q] Bootloop after CM 11 - G2 Q&A, Help & Troubleshooting

Hello,
Yesterday i flashed my LG G2 D802 with cm-11-20141221-NIGHTLY-d802
But i rebooted and everything was fine, and after that i got a error withs says ''Security error''.
So i got into download mode and flashed it with the stock KDZ, no succes. Every time i flash a KDZ it got stuck in a weird bootloop. When the LG logo appears it loads and shut of and on, and repeat that.
Can someone help me?

Related

Lg g2 stuck on black screen with text

hi all
I rooted my lg g2 , and then installed twrp. I downloaded my custom rom to the phones memory, I installed the rom threw twrp and said successfully done so I restarted the phone and it booted with lg logo then this
[800] fastboot mode started
[850] udc_start()
I can get into twrp recovery and also can get into the lg software tpo flash stock rom but sticks at 49% and states try again done all this for past 5 hrs and nothing ,
computer picks up phone when on txt screen when usb plugged in but I don't know what to do.
Which carrier phone are you using?

[Q] Brick or no brick?

Hi.
I have a Vodafone Germany LG G2 with stock KitKat.
My story:
I installed root and recovery. Then I tried to install the OTA, doesnt work, tried it with LG PC Suite. Boot certification verify error.
Recovered all with this guide:
[FIX] NO Recovery mode, No download mode, after OTA on rooted LG G2
http://forum.xda-developers.com/showthread.php?t=2582142
Then flashed an open LG G2 kdz and all was fine again, but...
no Update for me with knock code.
----------------->>>>
So i tried to flash the original Vodafone KDZ in Offline mode. I get an error at 15 percent and it wont work. So i restarted my phone, but i only had a black screen. Nothing worked again (no download, no recovery). Ok, plugged in in PC and woha, broadcom device detected. Back to ubuntu and recovery again (see above).
After that, i restarted my phone, but no recovery was there... only the lg logo. Everytime. Again: No Download, no recovery. Stuck at bootloop every time. Factory hard reset can be called, but if i confirm, "Factory reset processing" appears, now for ~30 minutes. Is there a way to fastboot or to another state than that?
Any idea?

[Q] Help, bricked device

I own a LG G2 D805 and I tried do install a D802 ROM. When it booted, the screen showed a lot of glitches, as though the lcd had been damaged. I went back to the recovery and tried to flash other ROMs without success. I got into download mode to go back to stock but now I can't flash any d805 kdz, only d802 kdz, and as I do, the device keeps rebooting as soon as I get into the set up screen or shortly after that. What can I do?

Bricked LG G2 D802

Hi Guyz, so i managed to brick my phone yesterday. Was running Optimus G3 and decided to flash CloudyG2 3.3. Followed the instructions did a full wipe but when rebooted LG logo would flash for a split second then screen goes blank. The screen is on because can see the back-light but nothing boots. Tried a couple more restarts but the same thing happens. I did take a TWRP backup prior but when i enter recovery mode and restore the backup, when it reboots i get the LG logo then the android animation but then it freezes/stops on the Android text.
I then tried flashing stock rom via LG Flash Tool, downloaded both kitkat and lollipop kdz files, entered download mode on phone and got the firmware update message, went through the process of flashing with the flash tool but when it comes to the software upgrade part, it gets to 2% then fails. with a message - Upgrade stopped due to an error. I get this message when trying to flash both kitkat and lollipop kdz files and i have tried on both windows 10 machine and windows 7 laptop.
As i have access to recovery i have tried restoring backup many times but it just gets stuck at after the android animation, i guess my next step is to try the tot flash method but im struggling to find a clear guide on how to do this so any advice would be helpful.
Cheers, Justin.
wrong bootleador try flash kk bootleador then kk baseband then wipe then cloudy g2 2.2 and reboot
amin44 said:
wrong bootleador try flash kk bootleador then kk baseband then wipe then cloudy g2 2.2 and reboot
Click to expand...
Click to collapse
Thanks, actually shortly after i posted question it fixed itself... i tried flashing lollipop again, the software upgrade started and it got to 2% then error. I left the LG flash tool open with the error on screen, disconnected phone and rebooted the phone... it went past LG logo and got stuck in boot just after showing android animation, so then i plugged in phone (wanted to see if could access phone via windows whilst stuck at boot) and after a couple of minutes the software upgrade window started on my pc so checked phone and it had switched into Firmware Update mode and was updating... so all good now!! Lollipop has installed and phone all working.
^^^ This may help someone with similar problem.
Thanks,
You should've flashed the kitkat bootloder before.. If you want to go back to cloudy ,flash the kitkat bootlader again..

Bricked my LG G2 d802. keeps booting into TWRP, PC doesn't recognize it :(

I have LG G2 D802 KK 4.4.2
Earlier I installed using this guide stock KK 4.4.2.
Then I rooted it using IOroot25r
then install TWRP using AutoRec
and then it stuck in booting in green led .
I try wiping in TWRP and after that it stucked in LG logo and then I try this guide again and it stuck in 95% with FAIL, LGFlashTool says "FBOOT check" and then "Fail to get BOOT complete status" .
I can get it in download mode
It keeps booting into TWRP now and I dont have ROM on the device to flash through TWRP,
and the device is not recognizable by the PC..
What can I do? :crying:
thanks
Well, now there are still TWRP,
but it stuck in LG logo and the green led is flashing.
any ideas?
thanks

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