Database Users

[Q] LG G2 ATT D800 stuck in boot loop

I recently got an lg g2 and rooted it, but it would never boot into recovery mode correctly. Well one night i was trying different chargers because it kept saying it was charging and would vibrate and say it was charging again, i woke up and the screen was lit but wasnt booting. I tried to restart it, no affect, tried to recover it, when it does this it goes into the blank screen again and does nothing, it also wont go into download mode. when plugging into the computer around 15 drives pop up and say they need formatting and it says that is is some qual disk drive and wont install any drivers. tried adb and the phone isnt recognized. am I SOL? What else can i try. One disk drive mounts and has a folder named image.
Short version
-wont boot
-no download mode
-recovery does nothing
-computer does not recognize as phone
-comes up with 15 disk drives that needs to be formatted
-one has a folder named image with stuff in it
-adb wont recognize phone
-tried the lg recovery tool and b/c no download mode it will not read the phone (tried to force install the drivers of the phone to see if it would work to no prevail)
Help :crying:

well today i got it to go into twrp recovery mode and can use adb with it again.
-will not boot
-can get into twrp now
-says when booting
fastboot mode started
udc_start()
reset
portcharge
-wont go into download mode but for a second
anything i can do to push a stock rom or to get it to go into download mode, ive been reading threads upon threads and just need some advice or anything now, ive tried almost everything and im exuasted.

etm34 said:
well today i got it to go into twrp recovery mode and can use adb with it again.
-will not boot
-can get into twrp now
-says when booting
fastboot mode started
udc_start()
reset
portcharge
-wont go into download mode but for a second
anything i can do to push a stock rom or to get it to go into download mode, ive been reading threads upon threads and just need some advice or anything now, ive tried almost everything and im exuasted.
Click to expand...
Click to collapse
Why not just go back to STOCK?
-for download mode, dont try to BOOT into download mode. Use the method of holding VOL UP while plugging in USB when the Flashtools are ready to go with the TOT and DLL files.
Follow this link:
http://forum.xda-developers.com/showthread.php?t=2633150

etm34 said:
well today i got it to go into twrp recovery mode and can use adb with it again.
-will not boot
-can get into twrp now
-says when booting
fastboot mode started
udc_start()
reset
portcharge
-wont go into download mode but for a second
anything i can do to push a stock rom or to get it to go into download mode, ive been reading threads upon threads and just need some advice or anything now, ive tried almost everything and im exuasted.
Click to expand...
Click to collapse
if you can get to fastboot mode this guide http://forum.xda-developers.com/showthread.php?t=2477595 has a way to recover download mode so you can get back to stock just make sure you download the files for your device

PhillyFlyer said:
Why not just go back to STOCK?
-for download mode, dont try to BOOT into download mode. Use the method of holding VOL UP while plugging in USB when the Flashtools are ready to go with the TOT and DLL files.
Follow this link:
http://forum.xda-developers.com/showthread.php?t=2633150
Click to expand...
Click to collapse
Like I said it goes into download mode but only for a second then it goes back to the fastboot screen.

XxZombiePikachu said:
if you can get to fastboot mode this guide http://forum.xda-developers.com/showthread.php?t=2477595 has a way to recover download mode so you can get back to stock just make sure you download the files for your device
Click to expand...
Click to collapse
Did this already, didn't repair it, said device does not have enough space during the last step. it allowed it to go into download mode for a second, but will not stay in it.

Solved my problem, will post a guide for others this weekend with the same issue.

etm34 said:
well today i got it to go into twrp recovery mode and can use adb with it again.
-will not boot
-can get into twrp now
-says when booting
fastboot mode started
udc_start()
reset
portcharge
-wont go into download mode but for a second
anything i can do to push a stock rom or to get it to go into download mode, ive been reading threads upon threads and just need some advice or anything now, ive tried almost everything and im exuasted.
Click to expand...
Click to collapse
Don't know if it's of any help but check out my post on fixing a hard bricked g2 had a similar problem an was able to get it fxed

Bootloop problem, no recovery, no download mode (Non rooted and No custom recovery)

Hi, I just bought an LG G2 D802 20B Model a couple days ago, yesterday I wanted to downgrade to 4.2.2 and I ended up bricking the phone.
The phone is non rooted, doesn't have any custom recovery, and not recognized by adb even though i installed all the drivers ( koush drivers, PdaNet, Lg drivers ...)
At first I flashed with .kdz file and it ended in bootloop, I tried to factory reset but it doesnt have any effects with the stock recovery it only shows the green android bot and blue progress bar and then restart in 3 seconds and reboots to lg logo and start looping.. After a restart the download mode didn't work anymore it showed me fastboot error, I searched for the tutorial that actually worked and I flashed with .tot method but there is still bootloop and the download mode is stuck at the image attached. The phone is not recognized by neither windows or ubuntu therefore I can't use adb to fix the partitions.
Can any body provide me with a solution? The phone is still new and it will be a shame if its transformed to a brick in 3 days :crying:​

Hey..hmm i think thats how download mode it is...so did you tried to flash again a firmware?

raulx222 said:
Hey..hmm i think thats how download mode it is...so did you tried to flash again a firmware?
Click to expand...
Click to collapse
Actually the picture attached is stuck and it doesnt change , and the pc can't recognize the phone so I cant flash it with another firmware

BUMP! please help!!

This isn't download mode.
here
only aboot, boot, laf..

bender_007 said:
This isn't download mode.
here
only aboot, boot, laf..
Click to expand...
Click to collapse
Thanks for your reply, however the phone is not recognized on windows neither on ubuntu therefore this tutorial can't help ...

I am in the exact same situation.
Mine is a D802 32GB Hong Kong model. I stupidly ran AutoRec which soft-bricked my phone. Managed to get Download Mode working, then flashed 20C and 20B which bootlooped. Then I attempted to flash 10B, which got me into this exact state:
Download Mode not working (only shows "Download Mode", does not go to firmware recovery screen, not detected in Win/Linux)
Factory reset (Power + Vol Down) can go to factory reset screen, after factory reset, still bootloop.
Once in a while, I also get the Android icon which then disappears after a few seconds and goes to LG logo again.
If I plug the phone in and do a factory reset, Windows detects the LGE AndroidNet modem, and Linux will detect cdc_acm USB Abstract Control Model driver. Flash Tool and LG Mobile Support seems to detect the phone and attempt to flash, but the phone restarts after a short while.
I have no idea what else to do

What Options Have I Got At This Stage With A Bricked D802

I installed autorec recovery.as soon as i booted I realized the presence of white lines which have never gone.I cant flash any zip file such as the JDI kernal.It cannot enter into download mode even after erasing recovery, laf, aboot, boot and flashing back stock aboot, boot and laf.I cannot see the LGE port so I cannot tot it back neither does kdz flashing work since it cannot go into download mode.Adb doesn't show up.
What I got is only fastboot + white lines (they only cleared up once by luck so I could see fastboot mode on the phone) .
Please help me Un-Brick it ASAP.look at the questions below.
Thanks
-Should I re-flash all 12 partitions via fastboot (use twrp as recovery).
-It is written d802 on the cover but could the motherboard be different inside?
-Supposing I was to flash 16 GB to a 32 GB phone or vise versa would it affect anything.
-What are my options at this stage and what is the best method to approach this

http://forum.xda-developers.com/lg-g2/general/mega-tut-how-to-fix-bricked-lg-g2-t3055033
Would This Guide Work? I have seen in other guides where they warn about replacing the original recovery but rather suggest you use twrp.
-I think this is a refurbished device.

UPDATE
ok So I managed to fix the white lines and they have completely disappeared which is a plus point.I can finally see download mode for a second before it disappears.I can also go to factory reset mode after holding vol down and power but I have not reset it yet.
Any fix for 1 second download mode?Once I get to download mode i can tot back.

if you have custom recovery try different kernels, wipe, flash bootloader you must be on download mode to revert to stock.
at this point if you cant use the download mode at all, you must try riffbox(search on google)

zhjackss said:
if you have custom recovery try different kernels, wipe, flash bootloader you must be on download mode to revert to stock.
at this point if you cant use the download mode at all, you must try riffbox(search on google)
Click to expand...
Click to collapse
Holy Mother Of.......The RIFFBOX is crazy....i do XBOX 360 modding and i know the difficulty..hehe.....Actually I see download mode for a second and it disappears........which custom recovery can i flash via fastboot, philz or twrp and which ones are the right ones to download.....i am already pissed off at autorec.i feel I am getting close after I cleared up white lines now only fastboot stands in the way.I know many people who mess up and enter bulk mode at this stage and I wanna avoid.I also cant find the right kdz file for my LG cause the imei is a spoofed one that is invalid in the first place so i am hoping for a miracle at this stage.Thanks for the help.......what do you think I can do apart from riffbox?

sohailsameja said:
Holy Mother Of.......The RIFFBOX is crazy....i do XBOX 360 modding and i know the difficulty..hehe.....Actually I see download mode for a second and it disappears........which custom recovery can i flash via fastboot, philz or twrp and which ones are the right ones to download.....i am already pissed off at autorec.i feel I am getting close after I cleared up white lines now only fastboot stands in the way.I know many people who mess up and enter bulk mode at this stage and I wanna avoid.I also cant find the right kdz file for my LG cause the imei is a spoofed one that is invalid in the first place so i am hoping for a miracle at this stage.Thanks for the help.......what do you think I can do apart from riffbox?
Click to expand...
Click to collapse
Just try everything you see on xda. I never faced a 1 sec download mode before and believe me i bricked(hard/soft and beyond) many times and came back, it aint die. Once download mode is broke there must something really not working. In other saying you need to revert to stock. Also, if you dont have custom recovery i also dont believe you can flash a custom recovery, you could try adb push laf.img recovery.img aboot.img etc. But its going be hard bricked.
Man i was thinking i faced every difficulty with d802 but you proved me wrong :laugh:

I pushed the three files that's when the white lines cleared up and download mode came for a second....there is a similar case on Android forums where they download mode comes for a second. The worst part is the IMEI was patched to a very u usual IMEI on the back cover, it's not even an LG imei so i can't find the write kdz file to extract partitions from....I have to rely on trial and error......at this stage I don't wanna enter qhsusb mode aka hard brick...... I just have to revive download mode.......actually when I attempt to boot laf. IMG I get a dtb error ?any thing I can try

So I just wanna confirm this. if i flash any custom recovery say cwm (of course for lg g2 d802) via fastboot mode using the command fastboot flash recovery recovery.img will it actually install the recovery or what.and then to enter recovery i have to essentially hard reset (vol down + power ) so as to enter recovery.now if there is no recovery it will hard reset and i will enter qhsusb mode which i dont want.So does flashing a recovery image via fastboot install the recovery or what.Please assist.

sohailsameja said:
ok So I managed to fix the white lines and they have completely disappeared which is a plus point.I can finally see download mode for a second before it disappears.I can also go to factory reset mode after holding vol down and power but I have not reset it yet.
Any fix for 1 second download mode?Once I get to download mode i can tot back.
Click to expand...
Click to collapse
How were you able to fix the white lines issue @sohailsameja?

LG G2 - D802 cannot enter Recovery Mode / Download Mode key combination while booting

Hello all,
I have an LG G2 - D802 with CM-12.1 and TWRP as Recovery partition.
After the phone has undergone several software and one hardware bricks, I suppose there is something wrong with the phone's partitions because I cannot access the Recovery partition or the Download Mode when booting by using the key combination.
I found out by trying to do a clean flash of CM13 on the phone via TWRP and External memory via Mini USB - USB Memory stick and when I have deleted all partitions including the Internal Storage, System, Data, Cache & Dalvik Cache, I tried to flash the CM13+GoogleApps but then I have booted the phone I could see only the LG logo for a few seconds and then a black - on screen.
When I plugged the phone on my PC I could see a lot of partitions and I have followed a guide I found in the forum to unbrick. Then miraculously the phone had booted into the TWRP recovery without pressing any key combination. After that, I have restored to my precious backup.
Specifically then I'm trying to boot to Download Mode (to flash the Official LG Firmware and unroot), I turn the phone off, I press the Volume Up + Power, then when I see the LG logo I unpress and press the Power button but the phone keeps booting to my CM12.1 OS.
The same occurs when I 'm trying to boot to the Recovery parition (TWRP), however I can boot there via the CM's advanced reboot menu.
The reason I wanted to flash the Official Firmware and unroot is because I thought it will bring the Recovery and Download mode back..
How can I flash the correct images for the Download Mode and Recovery mode on the phone?
Also should I leave the Internal Storage intact instead of formatting via TWRP before I flash the new CM13?
thanks,
Stefanos Constantinou

S.Constantinou said:
Hello all,
I have an LG G2 - D802 with CM-12.1 and TWRP as Recovery partition.
After the phone has undergone several software and one hardware bricks, I suppose there is something wrong with the phone's partitions because I cannot access the Recovery partition or the Download Mode when booting by using the key combination.
I found out by trying to do a clean flash of CM13 on the phone via TWRP and External memory via Mini USB - USB Memory stick and when I have deleted all partitions including the Internal Storage, System, Data, Cache & Dalvik Cache, I tried to flash the CM13+GoogleApps but then I have booted the phone I could see only the LG logo for a few seconds and then a black - on screen.
When I plugged the phone on my PC I could see a lot of partitions and I have followed a guide I found in the forum to unbrick. Then miraculously the phone had booted into the TWRP recovery without pressing any key combination. After that, I have restored to my precious backup.
Specifically then I'm trying to boot to Download Mode (to flash the Official LG Firmware and unroot), I turn the phone off, I press the Volume Up + Power, then when I see the LG logo I unpress and press the Power button but the phone keeps booting to my CM12.1 OS.
The same occurs when I 'm trying to boot to the Recovery parition (TWRP), however I can boot there via the CM's advanced reboot menu.
The reason I wanted to flash the Official Firmware and unroot is because I thought it will bring the Recovery and Download mode back..
How can I flash the correct images for the Download Mode and Recovery mode on the phone?
Also should I leave the Internal Storage intact instead of formatting via TWRP before I flash the new CM13?
thanks,
Stefanos Constantinou
Click to expand...
Click to collapse
have you tried quick reboot app.?
if its missing you can try skr tools. if not then you must go back to stock..

raptorddd said:
have you tried quick reboot app.?
if its missing you can try skr tools. if not then you must go back to stock..
Click to expand...
Click to collapse
hi,
thanks for replying..
the quick reboot app can boot into Download Mode only for Samsung devices and do you mean SRK tool?
that's how I have unbricked my phone the other day when it showed all those partitions when I got it bricked..
so how can I use it to reflash the download mode and make the combination work?
also how can I go back to stock if I cannot enter the download mode?
and will the partitions be created if I'm using the download mode to flash the stock firmware?

S.Constantinou said:
hi,
thanks for replying..
the quick reboot app can boot into Download Mode only for Samsung devices and do you mean SRK tool?
that's how I have unbricked my phone the other day when it showed all those partitions when I got it bricked..
so how can I use it to reflash the download mode and make the combination work?
also how can I go back to stock if I cannot enter the download mode?
and will the partitions be created if I'm using the download mode to flash the stock firmware?
Click to expand...
Click to collapse
I use quick reboot to boot into recovery....
yes srktools
http://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076
not sure how but it has nuke download so it can enter download mode.
i think when using flash tools it wipes everything and installs everything needed..
so you must try the srk nuke download. i have no idea how to use. i only know you can try that or.. a search for a way to get download mode...if you get error 9006 i think then you need to short circuit the motherboard to get download mode..

raptorddd said:
I use quick reboot to boot into recovery....
yes srktools
http://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076
not sure how but it has nuke download so it can enter download mode.
i think when using flash tools it wipes everything and installs everything needed..
so you must try the srk nuke download. i have no idea how to use. i only know you can try that or.. a search for a way to get download mode...if you get error 9006 i think then you need to short circuit the motherboard to get download mode..
Click to expand...
Click to collapse
I have been there my friend, that was my Hardware Brick; I had a black screen and I had to short the circuit to get all those partitions back, then I could see all the partitions and reflash all the img via Linux.
Maybe I will try the SRK tool..

S.Constantinoue bro how did u shortcircuit ur motherboard ? i have the same issue.. i donno the procedure to shortcircuit.. would u let me know the procedure for it..
Sent from my SM-N910C using XDA-Developers mobile app

mriyaan said:
S.Constantinoue bro how did u shortcircuit ur motherboard ? i have the same issue.. i donno the procedure to shortcircuit.. would u let me know the procedure for it..
Sent from my SM-N910C using XDA-Developers mobile app
Click to expand...
Click to collapse
http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404

mriyaan said:
S.Constantinoue bro how did u shortcircuit ur motherboard ? i have the same issue.. i donno the procedure to shortcircuit.. would u let me know the procedure for it..
Sent from my SM-N910C using XDA-Developers mobile app
Click to expand...
Click to collapse
raptorddd said:
http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
Click to expand...
Click to collapse
hello guys, I have used the URL raptorddd has posted!
also I have posted a reply with screenshots I have made during the procedure:
there is my reply post :
http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404/post58490267#post58490267
have a look at this video https://www.youtube.com/watch?v=8ZD98phYTsM and this one https://www.youtube.com/watch?v=8ZD98phYTsM
but I have shorted the part on the motherboard the guide shows and not the one in the videos

Lg v20 stuck into bootloop no download mode only recovery | please help

HI I PUT MY PHONE ON CHARGE SO IT SHOWED THAT I AM USING AN HANDSFREE SO I RESTARTED MY PHONE BUT NEVER TURNED ON AGAIN ITS STUCK INTO A BOOTLOOP
IF I TRY TO GET INTO DOWNLOAD MODE IT SHOWS DOWNLOAD MODE FOR 5 SECS THEN RESTARTS AGAIN
IT DOEST NOT BOOT INTO FASTBOOT ALSO AND MY PHONE WAS ON OFFICIAL STOCK ITS AN F800L MODEL ON OREO 8.0.1
I CAN ONLY GET INTO FACTORY MODE BUT IF I RESET MY PHONE IT STUCKS ON BOOTLOOP AGAIN, PLEASE HELP ME...
ANYONE??? PLEASEEEEEE :crying::crying::crying::crying::crying::crying::crying::crying::crying::crying:

hamzarawal said:
HI I PUT MY PHONE ON CHARGE SO IT SHOWED THAT I AM USING AN HANDSFREE SO I RESTARTED MY PHONE BUT NEVER TURNED ON AGAIN ITS STUCK INTO A BOOTLOOP
IF I TRY TO GET INTO DOWNLOAD MODE IT SHOWS DOWNLOAD MODE FOR 5 SECS THEN RESTARTS AGAIN
IT DOEST NOT BOOT INTO FASTBOOT ALSO AND MY PHONE WAS ON OFFICIAL STOCK ITS AN F800L MODEL ON OREO 8.0.1
I CAN ONLY GET INTO FACTORY MODE BUT IF I RESET MY PHONE IT STUCKS ON BOOTLOOP AGAIN, PLEASE HELP ME...
ANYONE??? PLEASEEEEEE :crying::crying::crying::crying::crying::crying::crying::crying::crying::crying:
Click to expand...
Click to collapse
I'm sorry for your loss. To me it sounds like something may be physically damaged.

To elaborate a bit further, fastboot doesn't usefully exist without root, stock recovery can only wipe your userdata, and you've already said download mode reboots way too early to try anything. There is no safe way to try anything with the firmware, if it even somehow is a firmware issue. There's the leaked firehose, if you force it into 9008 mode, but that's risky and I have no personal experience with it to give more details.
Basically don't expect it to be coming back.

Phoenix591 said:
To elaborate a bit further, fastboot doesn't usefully exist without root, stock recovery can only wipe your userdata, and you've already said download mode reboots way too early to try anything. There is no safe way to try anything with the firmware, if it even somehow is a firmware issue. There's the leaked firehose, if you force it into 9008 mode, but that's risky and I have no personal experience with it to give more details.
Basically don't expect it to be coming back.
Click to expand...
Click to collapse
SO THAT MEANS IM NEVER BUYING AN LG AGAIN:crying:

boot in fastboot flash twrp and reinstall laf partition

Lussardi said:
boot in fastboot flash twrp and reinstall laf partition
Click to expand...
Click to collapse
Without it already being rooted and the dirtysanta bootloader installed there is no fastboot mode on anything (which you would have seen if you had read the OP) but the h918 (which still can't flash with it) and us996, and you still need a working phone to actually set the options in Android to allow unlocking the bootloader.
And I'd put it at like an 80% chance it's hardware failure anyway, since it's boot looping in download mode too.

Try holding down volume down and plugging in USB.......

Same issue herewith...
LG V20 boot loop , restarting again and again , also when USB cable method is applied to enter into the Download Mode , it also restarts after sometime after showing download mode icon etc........