Hi,
Today while browsing my stock LG g4 (h815) suddenly rebooted. It showed the LG boot screen for a while but then ended up with a black screen. The power button does nothing. If I remove and insert the battery the power button works again, but I get the same result.
I can boot to (stock) recovery OK and if I connect it to a pc it shows 100% charge. I tried using recovery to reset everything but no change.
I am on holiday so can't easily send it in for repairs. Any ideas? I do have a Windows tablet pc with me with ADB on it.
Search "bootloop" in G4 forum.
Warranty is the only solution.
But this is not a boot loop? It seems to boot normally and then goes to a black screen, it doesn't reboot. I direct about the boot loop but from the videos I could find it looked like it kept booting.
I guess I was wrong trying to start it today it boot looped a few times before the black screen. Guess I will try disabling the big cores so that I will at least have a phone until I get home.
Related
I was trying out using a keyboard with a cheap USB OTG cable, and all was good. Then all of the sudden the screen went buggy, where ever other line of pixels was shifted to the left or the right, almost like some sort of corrupted video file. It started to reboot itself, and it got to the black screen with the Google logo and then the screen fuzzed in the same way as before. It then starts to reboot and does the same thing over and over again. I find that I can get to the recovery screen with the scroll arrows. From there, if I tell it to reboot into recovery it goes back into the same Google logo bootloop. I then went back to the original recovery screen and I decide to try out adb to see if it works. Sure enough it does, and I unwisely start flashing a stock 4.2 bootloader image. However, while it is flashing the screen does the same fuzz thing and and stays fuzzed. Then it doesn't respond to anything. I take out the battery, and try to restart and with will not turn on at all, no vibration, no light from the screen, nothing. I tried a unbricking methods from there, and nothing can make it come back alive. Any ideas?
Additional info:
GSM tajkju
Bootloader unlocked
Running stock unrooted 4.2 that I flashed manually
Stock recovery
Yesterday I was backing up my phone through the third party recover screen when my phone shut off during the recover (I think I may have hit the power button?). Now when I try to start the phone when it's not plugged in I don't get any response from the phone. I can get to the fast boot screen but selecting recover mode just leads to a grey screen that says google on it for a second then the screen shuts off. I tried the LGNPST recovery method but the phone gets stuck in a loop at 67% where it shows the LG logo, the screen shuts off for a moment then back to the LG logo again. I've tried all the methods I can get my hands on, does anyone have any alternatives?
I thought I'd update this so that people that google their symptoms and come here have an answer.
I can't link to the youtube video but its called "Disconnect Battery LG Optimus G Sprint"
Pulling the battery fixed everything after installing the stock rom from LGNPST
Thanks to the folks in the IRC for help!
Bought a used D851. It is stuck in bootloop at the t-mobile screen. When i turn it on, shows LG logo, then green android icon for few seconds, then again LG logo. After about 1 minute, the white t-mobile screen shows up and stays for about 45 seconds and then screen goes black followed by white t-mobile screen again.
I have tried stock recovery with lg mobile tools. Also tried lg flash tools and everything goes fine, at the end, i get blue reset status 3 screen. Upon reboot, its back to boot loop. Also tried factory reset. With lg flash tools, when i choose "Board" then after reboot, it logs on to the minios menu but the screen is completely unresponsive. So when i again flash with "upgrade" selected, it flashes fine but continues the boot loop.
Please help.
Try this http://forum.xda-developers.com/showthread.php?t=2880311
Well my G4 (VS986) has been running ok on 13b rooted since december 2015, and today it suddenly died, it was on my desk and when I tried to use it the screen was black and it won't turn on, something like this had happen before but I usually just remove the battery and voila it had it working again. But not this time.
Now It only goes to the LG screen and then it turns off again (but it doesn't bootloop) so I keep trying then I connected the phone to the charger and it tried to boot again and this time it went to a black screen saying Secure Booting Error and it was error code 1007 but it went off again.
Then I tried to access recovery mode and it can access and be there for 40 min and it wont turn off, however I can't put it on download mode alway when is connected to the PC it says "qhsusb_bulk"
Anyone have any idea on what happen and how to fix it.
Thanks.
Nevermind.. Say hello to a new bootlooping LG G4 !!
I put it on the freezer and after 20 minutes the phone boot up normal, but after a few minutes it went the famous boot loop.
Time for a new phone
Hi,
a few hours ago I dropped my G4 H815. The back fell off and the battery got out. I put the Battery back in and after a few tries I could load the device. However, I just can`t start the phone now. When I press the power Boutton, nothing happens.
When plugging in the microUSB-Cable the screen turns on and I sometimes see the screen with the LG Logo, but no matter how often I try, it does not boot into recovery (the volume down key was always a bit tricky though). It just goes on to the Screen saying your battery is loading and it´s at 100%.
I can reach Download-Mode, but I do not see any way to force a reboot from there.
My Bootloader is unlocked and the device is rooted. Im running TWRP and LineageOS 14.
Norkzlam said:
Hi,
a few hours ago I dropped my G4 H815. The back fell off and the battery got out. I put the Battery back in and after a few tries I could load the device. However, I just can`t start the phone now. When I press the power Boutton, nothing happens.
When plugging in the microUSB-Cable the screen turns on and I sometimes see the screen with the LG Logo, but no matter how often I try, it does not boot into recovery (the volume down key was always a bit tricky though). It just goes on to the Screen saying your battery is loading and it´s at 100%.
I can reach Download-Mode, but I do not see any way to force a reboot from there.
My Bootloader is unlocked and the device is rooted. Im running TWRP and LineageOS 14.
Click to expand...
Click to collapse
Well it sounds like the infamous Bootloop at least the symptoms are the same. The Bootloop issue is not caused by dropping the phone but while booting Android as this is a very CPU intensive process.
Ilapo or not I would take a backup with SALT before anything else.
You can also boot to fastboot and assuming you haven't installed the nougat v29 bootloader stack you can just boot TWRP temporary by using
fastboot boot twrp.img
(where twrp.img should be my latest TWRP version preview 144 or higher)
Sent from my LG-H815 using XDA Labs
No Bootloop. It seems like the power Button is broken. Using SALT I could reboot the phone and it starts and works normal. The knok-on feature makes this situation, at least temporally, bearable.
I will probably try to fix the Button.