LG G4 Black Screen Problem - G4 Q&A, Help & Troubleshooting

Hey everyone ,
I have an LG G4 (h815t) Hong Kong variant , the device is on the stock rom 5.1 lollipop. It had the bootloop issue but i managed to fix it thanks to XDA (u da real MVP) , however after a couple of days the device suddenly powered off, i tried to power it on again but no luck what so ever,so i removed the battery then pressed the power button for 60 seconds (as it was written in a thread), then i put the battery back again & powered on, this time the device booted on to the LG logo i thought the problem is now solved because even if it was on a bootloop i already had the solution for that, but it wasn't even a bootloop, the LG logo showed for a brief then it went to a black screen! (awesome right? ). i have tried to factory reset the device after that, i booted to recovery successfully & confirmed that i want to reset the phone but after the confirm the device went to a black screen on again! tried to get the device to the download mode & I've managed to do so after a couple of tries , then i tried to flash a kdz using the LG up tool but after i hit start to begin the flashing the percentage just get to 4% then the device somehow exits the download mode to a black screen & the LG tool reports an error. So now I'm stuck sadly
I've seen a solution on XDA in which i use an SD card to boot from to the download mode (as my internal storage could be corrupted),i boot from the SD card using a (single image.bin) file, but the author in that thread included the single image file to a specific G4 variant & of course i couldn't find the single image.bin for my variant (H815t). so here am i again stuck :crying:
-ANY HELP WOULD BE VERY VERY APPRECIATED.
- sorry for prolongation
- excuse my English, it's not my native.

Related

[Q] Bricked G3

Hi everyone, new member. Recently my g3 got in a bootloop so i hard reset it. Everything seemed to work fine but after a short time the device used to get stuck and restart. I followed a guide how to revert back everything to stock but something went wrong and the device got stuck on MiniOS and then Reset Status 2.
i tried to fix it by flashing it with .kdz file but for some reason now when i turn it on it says: Secure booting error and the screen turns black and the led starts flashing red and blue.
I cannot access download mode cause it goes straight to the lg logo and black screen but u can access recovery mode. i already tried a hard reset but its no use as the device gets back to the black screen.
Any help would be immensely appreciated as this is my second g3 in 4 months and im tempted to throw it away.
Thanks and good day
Post your device model variant (D850, D851, D852, etc.). Also check out these two threads...
[Q] Bricked LS990 - Can't access recovery or download mode ...Specifically post #16
http://forum.xda-developers.com/sprint-lg-g3/help/bricked-ls990-access-recovery-download-t3053985
[q] lg g3 d855 hard bricked no download mode or recovery!
http://forum.xda-developers.com/lg-g3/help/q-lg-g3-d855-hard-bricked-download-mode-t3090911

Possible bricked device :( Plz help

Hi i feel i have messed up something with my US Cellular Lg G3
something similar had happened in the past as well on couple of occasions ( but due to diff reasons ) but i could revive the phone but i dunno what happened
TODAY I tried to reboot in recovery (( as i wanted to wipe data and factory reset it ) but instead there was blank screen and a flashing red and blue LED on the phone ( i guess the recovery TWRP was wiped somehow )
so i pulled battery and booted the phone , went to autorec app ( which i had installed long back and had used earlier as well to install TWRP ) and flashed the TWRP it said all went well , so i was like great
i again tried to reboot in recovery and now nothing , no power
no led
nothing
yes when i remove battery and plug it in with wall charger it shows the battery sign on screen with a question mark ,but as soon as i insert battery the screen goes blank despite it being plugged
No download mode , no recovery no led light
this happened before as well 3 to 4 times once i had flashed something , once i saw that the led was flashing on it own wiithout any notification and once due to some error in xposed
every time i used to leave phone and battery alone , the plug the phone in pc or charger and insert battery and do that a few times and ultimately i could get it to boot , this time nothing
plz help
Same here, without battery there is a question mark and it goes black screen as soon as I replace it. I don't know if it has to do with battery charge level, I suspect so
Can anyone please help
Sent from my LGLS885 using Tapatalk
After Flashing Autorec to get TWRP, i have had the same issue.
No Power, No LED, Black Screen, and no recognize on the PC. If you have Warranty you can try to send it to LG Service for assistance,. They will swap the rf - Board, i have done this and LG replaced the Mainboard for free.
If you have no Warranty there is a Solution here in XDA, Just look for the Threat Unbrick the LG G3
For this Solution you need to disassembly your LG G3 as shown here http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359
Can this work on us cellular LG g3 as well. ? It's model number is us900
Sent from my LGLS885 using Tapatalk

LG G4 Black Screen

Hey everyone ,
I have an LG G4 (h815t) Hong Kong variant , the device is on the stock rom 5.1 lollipop. It had the bootloop issue but i managed to fix it thanks to XDA (u da real MVP) , however after a couple of days the device suddenly powered off, i tried to power it on again but no luck what so ever,so i removed the battery then pressed the power button for 60 seconds (as it was written in a thread), then i put the battery back again & powered on, this time the device booted on to the LG logo i thought the problem is now solved because even if it was on a bootloop i already had the solution for that, but it wasn't even a bootloop, the LG logo showed for a brief then it went to a black screen! (awesome right? t:laugh::crying: ). i have tried to factory reset the device after that, i booted to recovery successfully & confirmed that i want to reset the phone but after the confirm the device went to a black screen on again! tried to get the device to the download mode & I've managed to do so after a couple of tries , then i tried to flash a kdz using the LG up tool but after i hit start to begin the flashing the percentage just get to 4% then the device somehow exits the download mode to a black screen & the LG tool reports an error. So now I'm stuck sadly :crying:
I've seen a solution on XDA in which i use an SD card to boot from to the download mode (as my internal storage could be corrupted),i boot from the SD card using a (single image.bin) file, but the author in that thread included the single image file to a specific G4 variant & of course i couldn't find the single image.bin for my variant (H815t). so here am i again stuck
-ANY HELP WOULD BE VERY VERY APPRECIATED.
- sorry for prolongation
- excuse my English, it's not my native.

Verizon LGG3 VS985 not booting

Hello
I am new to working on these phones so I apologize in advance if I don't properly state any processes or terms correctly.
I have a stock non modded Verizon LGG3 VS985 that experienced problems with WiFi and Bluetooth not working and significant battery drain. This happened right after a recent update to marshmallow. I tried cache clearing, safe mode, hard reset and nothing solved the problem. I decided I wanted to take the phone back to factory condition. I started with the LG flash tool that uses the .tot and a .dll. I ran the flash and when the program got to approx. 80%(at checking mini os phase of the flash) the phone began to reboot and only got as far as the LG logo and after about 2 min of the phone trying to reboot the flash program said fail, usb connect or something like that. At this point the phone will only start and go into a loop that includes the vibrate and the LG logo. and that will cycle until I believe the battery would die if allowed. I then found a link here at XDA (https://forum.xda-developers.com/verizon-lg-g3/general/guide-flash-to-stock-10b-kdz-method-t2928140) that uses the KDZ method, was well written and easy to follow. I ran it on the phone and it was going great. The flash program got to 88% and the phone went into the boot loop with the vib and LG logo . The flash program continued to run until it was complete while the phone was in the boot loop and it got to 100% and said that the software installed. I powered down the phone via battery removal and now when it tries to boot it vibes, shows the lg log and then the green android symbol shows for about 2 seconds and then it does it all over again. I have tried a hard reset and nothing changes. I appreciate any ideas any of you may have on what I can try to get this resolved. Thank you.
shovelheader said:
Hello
I am new to working on these phones so I apologize in advance if I don't properly state any processes or terms correctly.
I have a stock non modded Verizon LGG3 VS985 that experienced problems with WiFi and Bluetooth not working and significant battery drain. This happened right after a recent update to marshmallow. I tried cache clearing, safe mode, hard reset and nothing solved the problem. I decided I wanted to take the phone back to factory condition. I started with the LG flash tool that uses the .tot and a .dll. I ran the flash and when the program got to approx. 80%(at checking mini os phase of the flash) the phone began to reboot and only got as far as the LG logo and after about 2 min of the phone trying to reboot the flash program said fail, usb connect or something like that. At this point the phone will only start and go into a loop that includes the vibrate and the LG logo. and that will cycle until I believe the battery would die if allowed. I then found a link here at XDA (https://forum.xda-developers.com/verizon-lg-g3/general/guide-flash-to-stock-10b-kdz-method-t2928140) that uses the KDZ method, was well written and easy to follow. I ran it on the phone and it was going great. The flash program got to 88% and the phone went into the boot loop with the vib and LG logo . The flash program continued to run until it was complete while the phone was in the boot loop and it got to 100% and said that the software installed. I powered down the phone via battery removal and now when it tries to boot it vibes, shows the lg log and then the green android symbol shows for about 2 seconds and then it does it all over again. I have tried a hard reset and nothing changes. I appreciate any ideas any of you may have on what I can try to get this resolved. Thank you.
Click to expand...
Click to collapse
U try to go back to stock by shutting the phone down then hold the volume up button then plug in the phone to get into download mode
Sent from my LG-VS985 using Tapatalk
djevil said:
U try to go back to stock by shutting the phone down then hold the volume up button then plug in the phone to get into download mode
Sent from my LG-VS985 using Tapatalk
Click to expand...
Click to collapse
Not sure I understand the question completely, but I did place the phone in download mode as per the method you mention prior to both attempting the KDZ method and the TOT method of going back to stock.

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.

Categories

Resources