Develop Bugs

LG G3 D850 (AT&T Variant) Bootloop after Stock Firmware Restore

Hey guys,
I used this guide to restore the stock firmware: http://forum.xda-developers.com/showthread.php?t=2785089
It didn't succeed. Near the end, when phone rebooted, it got stuck in a bootloop.
I see the LG logo, the android man for a few seconds until it restarts again.
What should I do? I tried running the factory reset but that too does nothing but reboot it (again in the loop)

I am also having this same problem, if anyone could help/shed some light that would be great

Me too. I take days trying to find the solution.

F460L Bootloop, can enter download mode but still stuck in bootloop after flash.

I tried flashing MM kdz with LG Flash tool but when my phone reboots it will just go back in to the bootloop. It will show the LG logo then screen will turn black and the logo comes back up again and it repeats. Help please. I searched everywhere and tried almost all I know.

Anyone? Please

Lg g4s h736 hard bricked

Hello to every one!
I have a problem with my LG G4s H736.
So, I got root rights with KingRoot on 5.1.1 android, after that i changed to SuperSu via SuperSumePro.
Than i wanted to update to Marshmallow via LgFlashTool. When the process bar were on 5% percentcs, electricity turned down.
After that i tried to turn on my phone and i got a endless reboot, Lg logo appears and then disappears whith a little blue flash on screen and all that repeats endlessly.
PC does not see my phone anymore. I tried to revive my phone via LgBridge, but it wont help me BUT after pressing button "repair after incorrect update" i started to see a little message in upper left corner:
boot verification failed!!
cause mismatch_slg_len
What can I do with it? Please help guys!
Thanks for your attention!

dimakot1 said:
Hello to every one!
I have a problem with my LG G4s H736.
So, I got root rights with KingRoot on 5.1.1 android, after that i changed to SuperSu via SuperSumePro.
Than i wanted to update to Marshmallow via LgFlashTool. When the process bar were on 5% percentcs, electricity turned down.
After that i tried to turn on my phone and i got a endless reboot, Lg logo appears and then disappears whith a little blue flash on screen and all that repeats endlessly.
PC does not see my phone anymore. I tried to revive my phone via LgBridge, but it wont help me BUT after pressing button "repair after incorrect update" i started to see a little message in upper left corner:
boot verification failed!!
cause mismatch_slg_len
What can I do with it? Please help guys!
Thanks for your attention!
Click to expand...
Click to collapse
will flashing a KDZ work.? have you tried.? is there one for this phone.? if its bricked then LG should fix it tell them that.. what happened.

V521 stuck on LG Screen

Could Someone help me please currently my device is stuck on LG Lifes good screen unable to reset the device

Sudden death of G3

Hello i have Lg G3 D858HK went unresponsive after using facebook apps while listening to the music.
It completely unresponsive and i pull out the battery and turn it on.
Only blank screen with blue and red led sign. Is my motherboard problem?
I tried to boot into twrp and reflash the rom i used which is Fulmic 8.0 and
same problem blank screen.
I start digging into countless of thread like LG G3 Hard Brick Recovery
I managed to flash partition using extracted .tot from LGD858HKATv10d, still it won't boot.
I continue with LG flash tool 2014 on download mode with trial and error with the problem always stuck at 4% S/W upgrade
and keep continue to ask me to disconnect and reconnect the phone. Somehow i managed to flash firmware
using new firmware D858HK30b_00_0906.kdz.
I thought the problem is gone, now it stuck on bootloop and sometime with dead android guy with warning marks on his body.
I do factory reset still not working.
Is it i flash the wrong kdz file?
I have clueless right now as where to seek help. I don't know what is the actual problem
motherboard or software.