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...
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Click to collapse
Lg UP didn't work aswell, didn't recognize my phone, I already got it with LG Bridge, thanks!
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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
So recently I had CM13 installed on my G3 D852, but I wanted to try out the Marshmallow port of stock without actually removing CM13, so stupid me had flashed MultiROM and the included TWRP that supports it. Anyway, after flashing the port my phone had rebooted to just the LG logo with the "boot certification verify" error, then the black screen with the blue/red LED flashing. I had tried to go back to stock but it kept failing, and now for some reason my computer can't even see that it is plugged in.
Am I basically SOL? I can get into download mode just fine but that's it.
Okay it's being picked up by my PC now but I noticed something interesting, the model under LG's Mobile Support Tool reads the phone as the D855, when it's the D852. I've tried the KDZ and TOT method of trying to flash back to stock Lollipop for the D852 and neither work.
How screwed am I?
Update: After countless hours of searching, I finally found a method that worked. My G3 is now back up and running.
http://forum.xda-developers.com/lg-g3/help/solution-flashed-wrong-model-rom-to-d852-t2987242
I flashed 30c firmware with flashtool 2014 over rooted 21a (i think) on my D855 from Greece. I selected the normal flash to keep my files and apps, phone mode: DIAG and didn't clear the update registry. Phone worked normal for a week and then went into a boot loop. The phone randomly restarts and goes into loops for a while and then snaps out of it.
I have tried the following and none have fixed the issue:
-Replaced the battery.
-Upgraded to 30f over lg pc suite hoping it would fix it but it didn't.
-Flashed 30c and 30f over LG Flash tool with CS_EMERGENCY mode and cleared the updated registry.
-LG Flash tool wont flash any older lollipop kdz I tried. The phone screen flashes once but stays at 0% and then I receive a phone disconnected message.
-Put the device into safe mode and used the option on lg pc suite to fix upgrade errors. Didn't fix anything lol
-Tried factory reset. Nothing happened after I selected the yes on the confirmation.
-Tried to use LGUP hoping to install a lollipop kdz but it gives me an error message that I have to select a known model. Restarting the app and the phone didn't work either.
-Tried a guide on how to unroot and return to stock with the kitkat .tot file .
I really have no idea what else to try. Any help would be greatly appreciated.
louster35 said:
I flashed 30c firmware with flashtool 2014 over rooted 21a (i think) on my D855 from Greece. I selected the normal flash to keep my files and apps, phone mode: DIAG and didn't clear the update registry. Phone worked normal for a week and then went into a boot loop. The phone randomly restarts and goes into loops for a while and then snaps out of it.
I have tried the following and none have fixed the issue:
-Replaced the battery.
-Upgraded to 30f over lg pc suite hoping it would fix it but it didn't.
-Flashed 30c and 30f over LG Flash tool with CS_EMERGENCY mode and cleared the updated registry.
-LG Flash tool wont flash any older lollipop kdz I tried. The phone screen flashes once but stays at 0% and then I receive a phone disconnected message.
-Put the device into safe mode and used the option on lg pc suite to fix upgrade errors. Didn't fix anything lol
-Tried factory reset. Nothing happened after I selected the yes on the confirmation.
-Tried to use LGUP hoping to install a lollipop kdz but it gives me an error message that I have to select a known model. Restarting the app and the phone didn't work either.
-Tried a guide on how to unroot and return to stock with the kitkat .tot file .
I really have no idea what else to try. Any help would be greatly appreciated.
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Click to collapse
Replace the battery
I have the same problem and i got into the problem for the same reason.... the random rebooting that everyone says is down to the battery is something more sinister... i have tried 4 different batterys that work perfectly and it still happened i flashed a kdz and now i have a bootloop and no OS none of the other kdz files work neither do the tot files and lgup doesnt recognise my device... stuck...
Anik49 said:
Replace the battery
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That's the first thing I tried on my list of failed attempts to fix the problem as you can see... Brand new battery. No change.
DjCaprio tried 4 different batteries as you can see.
This is just terrible!
louster35 said:
That's the first thing I tried on my list of failed attempts to fix the problem as you can see... Brand new battery. No change.
DjCaprio tried 4 different batteries as you can see.
This is just terrible!
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Click to collapse
http://forum.xda-developers.com/lg-...to-lp-using-lg-t3283912/post64597779......try to use this for flashing lolipop kdz...see what happen.
Anik49 said:
http://forum.xda-developers.com/lg-...to-lp-using-lg-t3283912/post64597779......try to use this for flashing lolipop kdz...see what happen.
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Click to collapse
I tried removing the battery while connected to the pc via usb already. The other trick that involves editing a file requires root.
My phone started flashing the blue screen of death today so I finally took it to LG so they can check it out. Either way thanks for trying to help.
Hi all, I've had some issues with my G3 and have got to the point where I need the advice of wiser heads to try and fix the problem!
The phone seemingly died during an update a few weeks ago, but I was able to fix it using LG's tool and upgrading to Marshmallow. Then a few days ago with no warning the phone froze, and gets stuck in a bootloop at the LG screen, with the flashing LED. If I try to factory reset, I just end up with the Android Droid with a red triangle and I can't get any further. I've tried numerous guides I've found to try and reinstall the stock firmware, all without success. (I haven't tried accessing bootloader as I have download mode available). LG's own tool gets stuck at 4% when I try to recover, and I've tried the LG Flash Tool but get an error at 6% (LAF_READ_GPT_FAILED) using the 8974 dll. I've also tried the LGUP tool but that gets stuck at 6% (Error can't communicate with phone[Kilo Packet]. The phone was not rooted and is a 16GB UK version (model D855). I just seem to be going in circles now trying to find a solution, I suspect somewhere along the line I'm using the wrong combination of programs/TOT/DLL files so I could really do with someone pointing me in the right direction here!
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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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....
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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?
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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