Lg g2 stuck on black screen with text - G2 Q&A, Help & Troubleshooting

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?

Related

I tried installing TWRP and my phone is stuck on the LG splashscreen

https://www.youtube.com/watch?v=OZSjL6FCyxA
So I used the above video to flash TWRP onto my LG G2. I followed all of the instructions to the tee, and everything went just fine, but towards the end of the video, when I went to go boot into TWRP recovery, the LG splashscreen has been up for a few minutes now and the TeamWin logo hasn't popped up at all.
Should I be worried? And my phone is still plugged into my computer and I still have the command window pulled up, so could I reboot into Android if I wanted to via the command window?
Is the phone stuck with the LG logo on the screen, or is it restarting over and over without getting past the LG logo screen (boot loop)? If so, this link should help you out. http://forum.xda-developers.com/showthread.php?t=2491920
Best of luck
There shouldn't be a delay when going into recovery. If you can boot up regularly then I would try to flash it again.

[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?

Bootloop problem, no recovery, no download mode (Non rooted and No custom recovery)

Hi, I just bought an LG G2 D802 20B Model a couple days ago, yesterday I wanted to downgrade to 4.2.2 and I ended up bricking the phone.
The phone is non rooted, doesn't have any custom recovery, and not recognized by adb even though i installed all the drivers ( koush drivers, PdaNet, Lg drivers ...)
At first I flashed with .kdz file and it ended in bootloop, I tried to factory reset but it doesnt have any effects with the stock recovery it only shows the green android bot and blue progress bar and then restart in 3 seconds and reboots to lg logo and start looping.. After a restart the download mode didn't work anymore it showed me fastboot error, I searched for the tutorial that actually worked and I flashed with .tot method but there is still bootloop and the download mode is stuck at the image attached. The phone is not recognized by neither windows or ubuntu therefore I can't use adb to fix the partitions.
Can any body provide me with a solution? The phone is still new and it will be a shame if its transformed to a brick in 3 days :crying:​
Hey..hmm i think thats how download mode it is...so did you tried to flash again a firmware?
raulx222 said:
Hey..hmm i think thats how download mode it is...so did you tried to flash again a firmware?
Click to expand...
Click to collapse
Actually the picture attached is stuck and it doesnt change , and the pc can't recognize the phone so I cant flash it with another firmware
BUMP! please help!!
This isn't download mode.
here
only aboot, boot, laf..
bender_007 said:
This isn't download mode.
here
only aboot, boot, laf..
Click to expand...
Click to collapse
Thanks for your reply, however the phone is not recognized on windows neither on ubuntu therefore this tutorial can't help ...
I am in the exact same situation.
Mine is a D802 32GB Hong Kong model. I stupidly ran AutoRec which soft-bricked my phone. Managed to get Download Mode working, then flashed 20C and 20B which bootlooped. Then I attempted to flash 10B, which got me into this exact state:
Download Mode not working (only shows "Download Mode", does not go to firmware recovery screen, not detected in Win/Linux)
Factory reset (Power + Vol Down) can go to factory reset screen, after factory reset, still bootloop.
Once in a while, I also get the Android icon which then disappears after a few seconds and goes to LG logo again.
If I plug the phone in and do a factory reset, Windows detects the LGE AndroidNet modem, and Linux will detect cdc_acm USB Abstract Control Model driver. Flash Tool and LG Mobile Support seems to detect the phone and attempt to flash, but the phone restarts after a short while.
I have no idea what else to do

[HELP] D802 with black screen after flashing KK bootloader

Hi guys,
i have made a huge mistake i think...
Overview: LG G2 D802 with TWRP 3.7.1 by Blastgator, Render Kernel R11 and Cyanogen mod 12
I flashed via TWRP the KK bootloader 20H by Dorimax thinking that having all Bumped should do the trick but now the screen show the LG logo on start and i cant enter recovery nor download mode BUT the phone can correctly boot with cyano.
The problem is that the screen is black and i cant do nothing... the rest work well cause i can call my phone and it rings, i can see the SDcard from my pc, etc...
I tried via ADB but i never allowed it from the phone so i can't find it.
What can i do?
Thanks

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..

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