i have attempted to root this g4 using the kdz method. after flashing the kdz i get an lg security error. so it wont boot up. i tried rebooting a couple times and now its off and will not turn on again. cant get to download mode. nothing. just dead. what can be done to get this thing to turn on or flash the stock firmware on it or anything?!
thanks for any help!
If it won't turn on at all then there's nothing you can do other than a warranty claim.
-Joe
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i have h815 5.1.1 with locked bootloader. when i heard theres a MM 20b available, i tried to update my phone, losing my root access.. i just played around for a while and was not so happy yet, that i decided to downgrade back to my old FW. (10e). i flashed back my kdz using LGUP using refurbished method. and now the problem starts to come in.. after flashing back, i rooted it again, then it starts to have bootloops.tried to look for another open kdz to flshed but didnt worked out.. when i tried to flash back again 20b, i cannot enter download mode anymore, still getting in recovery though, i tried to clear data. but still not booting up. LGUP is not seeing my phone and also flashtool 2014. please help..
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hey guys my G4 apparently bootlooped itself for some reason so i factory reset it which didnt help. This lead me to use lgup to flash the same MM that the phone was running from a .kdz file. Now after the flash it just stays on the LG bootimg screen and wasn't booting up. I removed the battery and put it on again and this time the phone shut off. I also have no recovery mode and when i attempt to boot into download mode it just stays at the icon and doesn't go to the firmware update screen so ive been doing some research and it says the bootloader is most likely the problem. My computer also recognizes it as the 'qhsusb_bulk' error but i came across no solution.
Can anyone give me some advice on what to do here...thanks in advance
Hey, my Lg G4 H815 is dead. It got a bootloop at the logo. I only one got it to the startscreen but it died again.
I tried every thread offered I found. I ended up with going into download mode and install back to stock. This didnt work with lg flashtool so I tried the method with lgup. Nothings changed. What now happens is that when trying to get into download mode, it says some seconds donload mode and swithes back to the logo. Since then I dont even get into hard reset mode.... So can I through it into my trash can? Or does anyone know how to fix this? I would be thankful for every answer.... have a nice weekend you all
as long as the phone is for your region LG should repair/replace it. I just had the same issue with my H811 and despite it being 1 year and 2 months old they repaired it free of charge.
Hello, I wanted to unroot my phone from SuperSU, using the Fully unroot thingy that it has. After letting it be for awhile i realized it was just only at the bootup screen where the LG logo is and blue light was slowly blinking. Now I've tried LG flash tool to get me back to factory settings and I've tried different .kdz files, none of them seems to work. Furthest I got: I saw the firmware's name on my phone screen for a few seconds and then it dissappeared. Always LG Flash Tool fails after 9% and it says "Upgrade stopped due to an error." I have no idea what to do anymore with my phone. Any help is appreciated! Computer only recognises my phone when it's in firmware update mode.
Use LG UP...
Noksucow1 said:
Use LG UP...
Click to expand...
Click to collapse
Lg UP didn't work aswell, didn't recognize my phone, I already got it with LG Bridge, thanks!
Hi, recently decided to reset my phone back to stock as I had some trouble with a few programs after resetting my phone. I tried factory reset but the programs didn't work so I decided I would try to just restore to stock and start fresh. I followed a guide on how to do the stock restore using LGUP/LG Flash Tool. I followed the guide and put the KDZ File into the program and pressed cse flash. The program worked till around 12% then it got stuck and just didn't work anymore. It said error so I kept trying over and over as some guides on this problem said to keep trying.
Nothing has happened and my phone is now stuck on firmware update screen. I have taken the battery out multiple times and replaced it back in and turned the phone on but it automatically goes to that screen after showing the lg logo. I have tried the volume down and power button factory reset but that doesn't work and tried getting onto download screen if that was any help but couldn't do that either. Now I'm stuck here... Any help? Don't have any other phone and can't afford to get a new one so I would like to try fix this anyway possible.
After failing the flash update thing the program says failed my phone says 0%. It went to 1% once and then just went back to 0% after it didn't work. So don't know if it's been changed in anyway. All help appreciated.
Did you have LG up set at refurbish or upgrade.....
stinka318 said:
Did you have LG up set at refurbish or upgrade.....
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Click to collapse
I did refurbish first as I wanted to start new and it didn't work even though I did it a few times. I tried upgrade after and still nothing. Also have tried Uppercut and that does the same as normal LGUP.
The furthest % it got to was 19 on the computer and 8 on the phone and then it just stopped again. It usually stays between 11-19%. But most of the time 11%-16%
Have you made sure that it is the right region......
Try to down load just tot file and try that....
stinka318 said:
Have you made sure that it is the right region......
Try to down load just tot file and try that....
Click to expand...
Click to collapse
Where would the TOT files be? Can't seem to find any for LG H815 v20i ?
And what program should I use to do it?
Janny1993 said:
Where would the TOT files be? Can't seem to find any for LG H815 v20i ?
And what program should I use to do it?
Click to expand...
Click to collapse
This may help...........
http://storagecow.eu/index.php?dir=Xda/LG+G4/
If that don't work try this..........
https://forum.xda-developers.com/g4/orig-development/bl-lock-ul-android-6-0-marshmallow-t3459260