Database Users

[Q] LG G2 D802 Trouble. Black Screen. No Recovery/Download Mode

Hello together!
I just got my new LG G2 D802 32gb today and wanted cyanogen on it. Well it was already rooted by the pre-owner so i just installed TWRP BUT I made the mistake to install it for D801 instead of D802. (Too hasty )
Well when the phone rebooted after the installation it stucked in fastboot and I was starting to freak out. I was searching for a solution but I just came from Apple to Android so its all kind of new. I saw this post and tried it.
reddit.com/r/lgg2/comments/1soiyj/stuck_in_fastboot_mode_need_help/
I erased the data as described. Worked just fine. Then I tried to flash the new data but it didnt work and after a while I restarted the phone (Why not I thought, usually always helps)
Well now the screen is, and stays, black. And it wont Turn on. No matter how long I press the Power Button. Also I cant access the Download nor the recovery mode. So I cant restock. When I connect the phone to my laptop it shows a crapload of drives on my laptop. From E to S everything. 15 Local Disks overall. Well just one of them is accessable. E:. On the drive is one single folder: Images. But its secured so I cant add anything to it (I hoped I could add the Images I just erased eralier manually). 63.9MB is its capacity.
Neither fastboot nor ADB can access the the phone now.
Pressing the Power Button of the phone while connected reconnects it to the computer.
I dont know what to do I am completely helpless :crying:
I appreciate every help!
Thanks!
Linus

Did you find a solution?
LinusFr said:
Hello together!
I just got my new LG G2 D802 32gb today and wanted cyanogen on it. Well it was already rooted by the pre-owner so i just installed TWRP BUT I made the mistake to install it for D801 instead of D802. (Too hasty )
Well when the phone rebooted after the installation it stucked in fastboot and I was starting to freak out. I was searching for a solution but I just came from Apple to Android so its all kind of new. I saw this post and tried it.
reddit.com/r/lgg2/comments/1soiyj/stuck_in_fastboot_mode_need_help/
I erased the data as described. Worked just fine. Then I tried to flash the new data but it didnt work and after a while I restarted the phone (Why not I thought, usually always helps)
Well now the screen is, and stays, black. And it wont Turn on. No matter how long I press the Power Button. Also I cant access the Download nor the recovery mode. So I cant restock. When I connect the phone to my laptop it shows a crapload of drives on my laptop. From E to S everything. 15 Local Disks overall. Well just one of them is accessable. E:. On the drive is one single folder: Images. But its secured so I cant add anything to it (I hoped I could add the Images I just erased eralier manually). 63.9MB is its capacity.
Neither fastboot nor ADB can access the the phone now.
Pressing the Power Button of the phone while connected reconnects it to the computer.
I dont know what to do I am completely helpless :crying:
I appreciate every help!
Thanks!
Linus
Click to expand...
Click to collapse
Did you get an answer? Same problem for me

Bob the tomato said:
Did you get an answer? Same problem for me
Click to expand...
Click to collapse
same here any solution.

This is for the d802 variant with 16Gb,
but the procedure is this: http://forum.xda-developers.com/showthread.php?t=2582142

LinusFr said:
Hello together!
I just got my new LG G2 D802 32gb today and wanted cyanogen on it. Well it was already rooted by the pre-owner so i just installed TWRP BUT I made the mistake to install it for D801 instead of D802. (Too hasty )
Well when the phone rebooted after the installation it stucked in fastboot and I was starting to freak out. I was searching for a solution but I just came from Apple to Android so its all kind of new. I saw this post and tried it.
reddit.com/r/lgg2/comments/1soiyj/stuck_in_fastboot_mode_need_help/
I erased the data as described. Worked just fine. Then I tried to flash the new data but it didnt work and after a while I restarted the phone (Why not I thought, usually always helps)
Well now the screen is, and stays, black. And it wont Turn on. No matter how long I press the Power Button. Also I cant access the Download nor the recovery mode. So I cant restock. When I connect the phone to my laptop it shows a crapload of drives on my laptop. From E to S everything. 15 Local Disks overall. Well just one of them is accessable. E:. On the drive is one single folder: Images. But its secured so I cant add anything to it (I hoped I could add the Images I just erased eralier manually). 63.9MB is its capacity.
Neither fastboot nor ADB can access the the phone now.
Pressing the Power Button of the phone while connected reconnects it to the computer.
I dont know what to do I am completely helpless :crying:
I appreciate every help!
Thanks!
Linus
Click to expand...
Click to collapse
HI, after two damned weeks, i decided to send my G2 to the service center, they said that they have to replace the board, luckily for me i still have the warranty for my phone, we have same problem, and even this cant unbrick my phone http://forum.xda-developers.com/showthread.php?t=2582142 sorry to tell you that theres no other way around to fix your G2 but to send it to the HOSPITAL.

hey try this
http://forum.xda-developers.com/showthread.php?p=48765620#post48765620
i got ur problem tooo after I got upgrade to lolipop but i got greedy and try cyanogen 13
mannnnnnnnnn black sceen of death!!

Maybe @tungkick can help here. He helped me with my G2 16GB with this problem.

This is qhs_USB 9006 use srktool to unbrick u can find it here in xda

ThePainlessOne said:
http://forum.xda-developers.com/showthread.php?p=48765620#post48765620
i got ur problem tooo after I got upgrade to lolipop but i got greedy and try cyanogen 13
mannnnnnnnnn black sceen of death!!
Click to expand...
Click to collapse
Same here

Lg g2 stuck in boot loop, vzw i have tried everything need serious help!!!!!!!!!!!

Been running pac rom, tried installing a custom ROM that was almost stock kitkat for Verizon. Forgot to wipe i think, and now i have been screwed since. Stuck in boot loop. Factory reset can be reached, but screen goes black everytime and doesnt allow me to get into TWRP. Only thing accessiable is download mode. But device is not recongized in adb, only when its bootlooping. But it is recognized in devices and printers in bootloop. New computer also, no RSA authentication, while in bootloop ive tried to adb boot recovery commands, but no authorization. Im completly stuck and have been for days, ive read so many posts but everything i have found doesnt match all my problems. and most people dont read the entire post or problem before submitting a dumb answer, which is a duh i tried that kind of thing thanks for nothing. SO PLEASE HELP IF YOU CAN THINK OF ANYTHING ELSE. IM GOING CRAZY OVER HERE AND LOOSING MY MIND> WHO EVER CAN HELP ME, IS GOD AND SHOULD BE CONSIDERED TOP DOG GENIOUS>

When you get to the white Factory Reset screen, pressing the power button 3 or 4 times won't get you back into TWRP?

Well u press it once to give conform option, and the second time, turn it black

lg flash tool

that doesnt work because it thinks its got the latest version. I need some real help bad, its so hard not having my phone. This would be easy if my laptop didnt get stolen that had authorization to do cmd commands. Anyways, really need some brain power put togeaher on this on and \fast. Is anyone down with maybe skyping with me, to visually see whats going on and troubleshoot it as if you were remoting into a computer. Just tell me what to do!!!> Please you have no idea how much I would love someone if they did. Its been driving me balls for weeks now. I NEED SOMEONES HELP

seriously, no one can help?

millzdog said:
seriously, no one can help?
Click to expand...
Click to collapse
lg tool works.. can u go into download mode?? just need to tweak lg tool with offline script

33709
Croize said:
lg tool works.. can u go into download mode?? just need to tweak lg tool with offline script
Click to expand...
Click to collapse
Yes i can go into download mode, please show me how to tweak

millzdog said:
Yes i can go into download mode, please show me how to tweak
Click to expand...
Click to collapse
Use the official lg support tool to restore it if you can enter downloadmode!!!!

http://forum.xda-developers.com/showthread.php?t=2432476
vs98010b stock rooted

[Q] [VS980 32GB brick] - No download mode, some form of TWRP

Hello,
I've done a lot of looking through these forums, so I can say that the following doesn't work:
* The solution where and adb command from the TWRP terminal (starting with if=dev/zero) does not work. It does not have the files/directories those commands look for.
* I will be currently trying the solution that boots into Linux and uses gdisk to manage partitions. I have hope in this one, but I am making a head start of looking for advice in case it doesn't.
Any .tot or .kdz methods are useless as my phone /cannot/ get into download mode. If there is a way of telling it to over a cable, like you can with fastboot, I would love to know.
How the problem happened:
Ironically when I finally settled with a rom and wasn't going to do any flashing in the near future, I decided to make a nandroid backup.
I watched its progress now and then and it was working regularly.
Once it finished, I slid to reboot, and walked away. When I came back, the phone was on the LG logo with pulsating blue/green LED.
I went to restore from the backup I had just made, and that's what really messed things up. Ever after, all directories are shown as empty, and if you tell TWRP to do any function like flashing or recovering, it starts, but then crashes and reboots.
To begin with, occasionally it /would/ show my directories populated as they had been... but the crash and reboot thing. Now it never shows anything in the directories.
Since then, I /did/ manage to get into Fastboot ONE TIME, but things didn't work out on the computer end for Flashtools because I was on my campus network.
I have held out for a similarly low odd since, but I have spent hours, and almost all the battery, holding the power up button different times and ways and plugging the USB cable in at different times and ways.
I had Xdabbeb's stock variant installed, XCeed kernel, latest TWRP (thank God for heat control or I would have a screwed screen by now!) and let me know if any other details would be helpful.
I'm about to boot into Linux, I'll see how far I can follow this solution:
http://forum.xda-developers.com/showthread.php?t=2582142
Has anyone been in this spot? What worked?
EDIT: Ubuntu solution no good - my device does not show up as qhsusb_bulk or in sda or sdb tables.
EDIT: I MIRACULOUSLY got into fastboot! Instead of selecting power off or just holding power etc. in TWRP I said to reboot as system - holding the VolUp, even with the cable already plugged in, got me into FastBoot!
Trying the .tot method.
EDIT: I could weep. .tot failed because of
[ 8:50: 3] LAF_READ_GPT_FAILED
[ 8:50: 3] LAF_READ_GPT_FAILED.
[ 8:50: 3] LAF retrieveGPT() failed.
So I thought I should reboot it into download mode (which it was already in...) and I'm back to it being impossible to attain. What worked from TWRP the other time was just lucky.

Here's what I did when I royally screwed up my ls980:
I grabbed SRKTool and nuked my download mode. Then when attempting to enter download mode I was instead kicked into fastboot. From there I flashed stock partition images (in my case aboot, boot, laf, and recovery), rebooted into download mode (which should be restored when the laf partition is flashed), and then was able to flash a stock tot with the LG software. If your tot flash fails because of a device name mismatch I can help you with the hex editing of the tot file as well.
All data lost, but phone was unbricked.
Sent from my LG-LS980 using Tapatalk

dgranillo said:
Here's what I did when I royally screwed up my ls980:
I grabbed SRKTool and nuked my download mode. Then when attempting to enter download mode I was instead kicked into fastboot. From there I flashed stock partition images (in my case aboot, boot, laf, and recovery), rebooted into download mode (which should be restored when the laf partition is flashed), and then was able to flash a stock tot with the LG software. If your tot flash fails because of a device name mismatch I can help you with the hex editing of the tot file as well.
All data lost, but phone was unbricked.
Sent from my LG-LS980 using Tapatalk
Click to expand...
Click to collapse
dgranillo, I greatly appreciate your reply.
I managed to get it into download mode one more time (the rate must have been 1 in 80 or fewer, but I had no choice!), and flashed a .tot file (an old one... Jellybean!)
Ever since then, I have been able get into download mode as easily as it should be. One or two things to note though.
Any further flashing of .tot files ends at 6% with the exact same errors as pre-"fix".
Even the successful flash didn't boot successfully at the end, but had a red-triangle android figure
Sometimes it boots successfully into the stock rom, but others it goes into LG logo and blue/green LED, as before.
After a successful boot, it will die/go back into a boot loop some time soon after.
This leads me to think that a significant part of this all happening (I mean, I only did a nandroid backup to start this all off...) is a hardware issue, maybe to do with the flash storage.
By huge luck, I am withing the last 2-3 days of the 30 day period after buying it refurbished from a seller who gives full refunds including postage. Convinced something's not quite right with the hardware, I will be sending it back. I simply can't waste any more time I could be spending with my wife, or out of a returnable period, seeing if there is a fix to it.
Like I said, it means a lot that you would respond to help. Maybe parts of this are useful to someone. Thank you!
Any advice on removing the "rooted" red writing from the download mode screen? Especially as I'm pretty sure it isn't any more.

That is beyond my knowledge. I'm sorry. Haven't seen or read about anything like that before.
Sent from my LG-LS980 using Tapatalk

dgranillo said:
That is beyond my knowledge. I'm sorry. Haven't seen or read about anything like that before.
Sent from my LG-LS980 using Tapatalk
Click to expand...
Click to collapse
dgranillo, I am sincerely thankful for the time and consideration that you have given my problem.
I will mark this as solved because I did get past the initial problem, and I am thinking the further problems might be hardware.
Thank you again.
EDIT: I can't see how to edit the topic title, perhaps a mod has to mark it as solved.

LG US996 keeps going into Firmware update.

tl;dr
Hey guys, The title says it all basically. So here's the actual issue. My US996 was running great. Then, a week or so ago it just randomly started getting super sluggish. Today, I turned it off and when i turned it back on, it went right into the "firmware update" screen. I pulled the battery, played it with then got it into the recovery screen. Only thing is, i was able to move up and down using the Vol down button and power button but, i couldnt actually go into anything. So i once again pulled the battery, and now it wont do anything but go back into the "firmware update" screen. after playing with it some i finally got into the Fast Boot screen. which allowed me to do nothing. I pulled the battery again and it wont do anything but go to that "firmware update" screen.
I have tried using Uppercut to flash it. But when the LGUP program does it's reboot it dumps me right back off on the same screen. Since Uppercut and the correct KDZ are not working. Is it a hardware or software issue?
Also please forgive me, I do not understand all of the Android terms. Like, I am not sure what ADB means. I am a bit tech savvy.

Try using LG Bridge. It will reset your phone to complete stock, but it should fix up your phone.

Obamaloominaty said:
Try using LG Bridge. It will reset your phone to complete stock, but it should fix up your phone.
Click to expand...
Click to collapse
I've tried that, Uppercut, pretty much everything. I think it's the dreaded bootloop issue. When I connect it to Bridge it tells me "no updates available" . Or, the update failed.

JethroFloyd said:
I've tried that, Uppercut, pretty much everything. I think it's the dreaded bootloop issue. When I connect it to Bridge it tells me "no updates available" . Or, the update failed.
Click to expand...
Click to collapse
Did you click "update error recovery"

Obamaloominaty said:
Did you click "update error recovery"
Click to expand...
Click to collapse
I did. It went through the update process on the phone. But, once again, when the phone restarted the it went right back to the "firmware update " screen. That tells me it's a hardware issue, right?

This doesn't make sense. If you had a bad NAND then the flash would fail because it wouldn't pass the hash check. If you had a bad CPU, it wouldn't be able to just load firmware update.
I am guessing that you have a corrupt misc, persist or persistent partition.
Use the patched LG UP to dump misc, persist and persistent. Then...
With the phone off, hold vol down and plug in the USB cable. That should that you to fastboot. If it does:
fastboot format misc
fastboot format persist
fastboot format persistent
Let me know what happens. If that fixes your phone, I can help you determine which partition is corrupt and help you fix it.

runningnak3d said:
This doesn't make sense. If you had a bad NAND then the flash would fail because it wouldn't pass the hash check. If you had a bad CPU, it wouldn't be able to just load firmware update.
I am guessing that you have a corrupt misc, persist or persistent partition.
Use the patched LG UP to dump misc, persist and persistent. Then...
With the phone off, hold vol down and plug in the USB cable. That should that you to fastboot. If it does:
fastboot format misc
fastboot format persist
fastboot format persistent
Let me know what happens. If that fixes your phone, I can help you determine which partition is corrupt and help you fix it.
Click to expand...
Click to collapse
I do appreciate your help. I attached a photo of what the ADB command prompt was telling me. but if for any reason you can't see it. It's telling me formatting isn't supported. Perhaps I'm using the wrong cmd

Weird.
Try erase instead of format.

runningnak3d said:
Weird.
Try erase instead of format.
Click to expand...
Click to collapse
Yeah. Everything about this situation is baffling. It just randomly started to happen.
Also, That command didnt work.

Did you unlock the bootloader with the bin file or using DirtySanta?
If it was with the bin file, you need to unlock it again. If you used DirtySanta, there is nothing that can be done. When you flashed the KDZ it replaced aboot, and now you can't fix the corrupt partition unless you can unlock it again.
I always tell people that if you have TWRP, don't ever flash the KDZ to try and fix your phone. There is nothing that it will do that you can't do if you have TWRP, and in your case you have an issue with a partition that isn't flashed by the KDZ ... and now no way to fix it.
Sorry, just reread your first post. I read recovery the first time and just assumed TWRP, but you meant the "vol down / press power" screen.
Is it possible an OTA got taken? Either way, I hate to be the bearer of bad news, but there is no fixing this except sending it to LG.
---------- Post added at 07:45 AM ---------- Previous post was at 07:38 AM ----------
Actually, send me a PM. I can send you a tool that can wipe those from download mode. You may be able to save your phone yet.

I didn't try to root the device. It did all this on its own. The device is still under warranty. I got in contact with LG about it. They sent me an RMA. All i tried to do was use Uppercut to try and fix it. Everything was stock on it when it did this. I purchased it brand new unlocked from B&H Photo. But, nonetheless thank you for your time and effort to help me.
I'm going to send out back to LG. But, i wouldn't mind getting that tool from you. I like LG devices. So i do plan on getting more.

I had the same issue. The phone was locked onto the firmware update and I could not override it. Pulling the battery and trying to re-flash the phone would not work. LG could not resolve it unless I sent the phone in for repair. ($42.00 + Shipping both ways)
This is what finally worked. Use the USB cord from your charger and connect the phone to a computer then power up the phone. This will override the firmware update and let the phone boot up normally.
Good Luck.

I gave up on this phone a while ago because of this issue. The only way i could start it up was if it was plugged in.. recently i started playing around with it again due to aosp second screen and started looking into the issue again. I forget where (it wasnt on xda) but i read that putting a little bit of water on the c type plug that goes into the phone fixes the issue. I dont know how or why someone discovered this and i first thought that it was someone joking or being malicious but i tried it and after 8 fricken months my phone can boot untehered!

Un-debrickable state ?

Hello guys,
I'm fairly certain I'm stuck in an un-debrickable state but I'll ask just in case. My phone is F800K.
I was toying around with LGUP in order to downgrade and root my phone. So far, so good.
I then tried to update to the latest android 9 again, but keep the root active. That's where things started to go south, so I decided to go back.
I followed a couple of "back to stock" guides but now I'm screwed.
- The phone does not boot.
- Download mode is broken, the phone doesn't connect to my computer while in download mode, so it's unusable.
- TWRP is gone. When I try to boot to recovery after yes both times I get nothing. Not the stock recovery and not TWRP, it just tries to boot as usual.
- Can't seem to go back into fastboot either. I tried VOLDOWN + plug-in the phone about 200 times now, to no avail.
Is there another way that I'm missing ?
Thanks.

growiel said:
Hello guys,
I'm fairly certain I'm stuck in an un-debrickable state but I'll ask just in case. My phone is F800K.
I was toying around with LGUP in order to downgrade and root my phone. So far, so good.
I then tried to update to the latest android 9 again, but keep the root active. That's where things started to go south, so I decided to go back.
I followed a couple of "back to stock" guides but now I'm screwed.
- The phone does not boot.
- Download mode is broken, the phone doesn't connect to my computer while in download mode, so it's unusable.
- TWRP is gone. When I try to boot to recovery after yes both times I get nothing. Not the stock recovery and not TWRP, it just tries to boot as usual.
- Can't seem to go back into fastboot either. I tried VOLDOWN + plug-in the phone about 200 times now, to no avail.
Is there another way that I'm missing ?
Thanks.
Click to expand...
Click to collapse
It does sound like a hard brick... you said fastboot is hosed, do you have access to adb in any way?
Sent from my moto g(6) play using Tapatalk

None that I know of, that's the issue. If I had access to either fastboot, adb or download mode, I could most likely salvage this, but I can't seem to be able to.
The weirdest thing is the broken download mode, I couldn't find anybody with the same issue...

growiel said:
None that I know of, that's the issue. If I had access to either fastboot, adb or download mode, I could most likely salvage this, but I can't seem to be able to.
The weirdest thing is the broken download mode, I couldn't find anybody with the same issue...
Click to expand...
Click to collapse
On my lg tribute HD (ls676) fastboot was removed by lg themselves on Android 6.0.1 quietly with a security update and download mode never worked right for me. Without access to fastboot, adb or even diag mode it really sounds like you have a hard brick. if i can find a solution of some kind, I'll definitely let you know.
Sent from my moto g(6) play using Tapatalk

What would "diag mode" be and how can I check if I can access it ?

Small update for people who stumble upon this thread, I managed to save my phone by using the Qualcomm Test Point, see here: https://forum.xda-developers.com/showpost.php?p=81697447&postcount=128