LG G4 H815 - Stuck on Bootloader State - G4 Q&A, Help & Troubleshooting

Hi to all,
yesterday I attempted to install LineageOS on my LG G4 h815.
I followed this tutorial -> https://forum.xda-developers.com/g4/general/howto-complete-guide-to-unlock-twrp-t3370003
Everything went fine. I was able to boot under LineageOS reinstall my apps etc, etc.
This morning when I woke up everything seemed normal too. But, few minutes ago, I sent an SMS via Google Messages the phone froze and then black screen.
When it froze I had 97% battery.
Ï tried to reboot it with power button -> Nothing.
I tried to remove the battery put it back on and pressed the power button -> One tiny vibration but nothing
I tried several times the same last process and finally I managed to get the screen with "Bootloader state : Unlocked !", but I cannot go further.
If I connect the phone with a USB cable, wether he's "turned on" or turned off no led is blinking.
Does someone have a clue to fix this or has ever encountered this issue ?
Tanks in advance and do not hesitate to refer to an old post. I wil check (but found no same case).
Jérémie.

Monkeypox95 said:
Hi to all,
yesterday I attempted to install LineageOS on my LG G4 h815.
I followed this tutorial -> https://forum.xda-developers.com/g4/general/howto-complete-guide-to-unlock-twrp-t3370003
Everything went fine. I was able to boot under LineageOS reinstall my apps etc, etc.
This morning when I woke up everything seemed normal too. But, few minutes ago, I sent an SMS via Google Messages the phone froze and then black screen.
When it froze I had 97% battery.
Ï tried to reboot it with power button -> Nothing.
I tried to remove the battery put it back on and pressed the power button -> One tiny vibration but nothing
I tried several times the same last process and finally I managed to get the screen with "Bootloader state : Unlocked !", but I cannot go further.
If I connect the phone with a USB cable, wether he's "turned on" or turned off no led is blinking.
Does someone have a clue to fix this or has ever encountered this issue ?
Tanks in advance and do not hesitate to refer to an old post. I wil check (but found no same case).
Jérémie.
Click to expand...
Click to collapse
Take note of what version of recovery you have you at need to try a few different versions or your device has the dreded boot loop issue........
---------- Post added at 10:38 AM ---------- Previous post was at 10:22 AM ----------
stinka318 said:
Take note of what version of recovery you have you at need to try a few different versions or your device has the dreded boot loop issue........
Click to expand...
Click to collapse
This at help to........
https://forum.xda-developers.com/g4/help/installing-twrp-issue-t3606772

stinka318 said:
Take note of what version of recovery you have you at need to try a few different versions or your device has the dreded boot loop issue........
---------- Post added at 10:38 AM ---------- Previous post was at 10:22 AM ----------
This at help to........
https://forum.xda-developers.com/g4/help/installing-twrp-issue-t3606772
Click to expand...
Click to collapse
Not sure to understand but how can I try different versions of TWRP if I can't get to Recovery mode ?

Monkeypox95 said:
Not sure to understand but how can I try different versions of TWRP if I can't get to Recovery mode ?
Click to expand...
Click to collapse
What version did you flash.......

stinka318 said:
What version did you flash.......
Click to expand...
Click to collapse
I flashed this img twrp-3.0.2-1-h815.img

Monkeypox95 said:
I flashed this img twrp-3.0.2-1-h815.img
Click to expand...
Click to collapse
Is there another version that you can try found on Samsung device sometimes flashing a older version may work.....

stinka318 said:
Is there another version that you can try found on Samsung device sometimes flashing a older version may work.....
Click to expand...
Click to collapse
I really would like to try another version but how ? I can't even get to recovery mode... I'm stuck on the first LG logo.

Monkeypox95 said:
I really would like to try another version but how ? I can't even get to recovery mode... I'm stuck on the first LG logo.
Click to expand...
Click to collapse
If you can get it in to download mode use you laptop to flash recovery this is probably why it has failed.......remember Google s your friend.

stinka318 said:
If you can get it in to download mode use you laptop to flash recovery this is probably why it has failed.......remember Google s your friend.
Click to expand...
Click to collapse
Just to perfectly understand.
Are you advising me to flash my recovery with an older version via my laptop (I imagine via adb/fastboot) despite I can't even get my LG be recognized by my laptop ?
Will the adb/fastboot command be functional as the LG seems not to be recognized on the PC?

Monkeypox95 said:
Just to perfectly understand.
Are you advising me to flash my recovery with an older version via my laptop (I imagine via adb/fastboot) despite I can't even get my LG be recognized by my laptop ?
Will the adb/fastboot command be functional as the LG seems not to be recognized on the PC?
Click to expand...
Click to collapse
The best way to get your laptop I recognize your phone is to get LG up running then with the usb plugged n drop the battery out then put battery back in then close off LG up.
Then start it again and when it go's into download mode the pull usb and close off LG up Then plug it back in with dos prompt open............

stinka318 said:
The best way to get your laptop I recognize your phone is to get LG up running then with the usb plugged n drop the battery out then put battery back in then close off LG up.
Then start it again and when it go's into download mode the pull usb and close off LG up Then plug it back in with dos prompt open............
Click to expand...
Click to collapse
Thanks for your reply and your time. I didn't know this software "LG Up", I will give it a try this evening (in France ^^') and give you feedback then.

Monkeypox95 said:
Thanks for your reply and your time. I didn't know this software "LG Up", I will give it a try this evening (in France ^^') and give you feedback then.
Click to expand...
Click to collapse
LG UP had no effect on the phone.
However, now the phone seems to have 0% battery and when I try to boot it I get the graphics to plug the phone on a source of energy. Once I do that the front led is blinking in orange (I guess because I had less than 1 or 2% o battery) and now the front led is still lit on in orange. Is this a good news or I'm hoping for nothing.
Anyway tomorrow I will try to get it back to my retailer.
Does anyone succedeed to get it replaced by LG even if the bootloader is unlocked ?
Thanks.

After a little journey to the repair shop of my retailer everything seems to work correctly, for the moment, with LineageOS !
Thanks everyone for your help !

Related

[Q] Nexus 7 Hardbricked?!

Okay, so recently installed the 4.4.2 OTA on my completely stock nexus 7 (unrooted, bootloader still locked).
Tried connecting to my PC via bluetooth (for headset) and noticed that it wasnt working (was working on 4.4), so decided that maybe a reboot would fix the problem.
And now the tablet doesn't boot. Completely unresponsive, no charging icon etc. either. Tried holding down the power button, power and +/- vol for 20+ secs to no avail. Connecting the tablet to my laptop makes windows update search for the QHSUSB_DLOAD driver. From what I've read this is supposed to be some sort of hardbrick?
I left the tablet completely stock and haven't done any tinkering except use the Wugfresh toolkit to do a backup (which only needed USB debugging on). Also the battery was definitely 60%+ before I attempted rebooting.
Help please? This is completely out of the blue seeing as I never even unlocked the bootloader or anything?
Please help!
See if something in this thread helps: http://forum.xda-developers.com/showthread.php?t=2393604
...and http://forum.xda-developers.com/showthread.php?t=2381582
mdamaged said:
See if something in this thread helps: http://forum.xda-developers.com/showthread.php?t=2393604
...and http://forum.xda-developers.com/showthread.php?t=2381582
Click to expand...
Click to collapse
Gone through both of them, tried the steps in the first one but I cant get to fastboot, still a blank screen and QHSUSB_DLOAD in device manager. The second one mentions in it's FAQ that the bootloader must be unlocked before using it? Mine was locked so I guess I cant use that method?
crash91 said:
Gone through both of them, tried the steps in the first one but I cant get to fastboot, still a blank screen and QHSUSB_DLOAD in device manager. The second one mentions in it's FAQ that the bootloader must be unlocked before using it? Mine was locked so I guess I cant use that method?
Click to expand...
Click to collapse
Hmm, well, last ditch would be to charge it overnight, and hold the power button down for several minutes, if that doesn't do it, you may have to just use the warranty.
mdamaged said:
Hmm, well, last ditch would be to charge it overnight, and hold the power button down for several minutes, if that doesn't do it, you may have to just use the warranty.
Click to expand...
Click to collapse
I'll update this tomorrow morning, thanks for your help!
crash91 said:
I'll update this tomorrow morning, thanks for your help!
Click to expand...
Click to collapse
No problem, keep us updated, too bad there isn't a 100% sure-fix answer though.
mdamaged said:
No problem, keep us updated, too bad there isn't a 100% sure-fix answer though.
Click to expand...
Click to collapse
Alright so still no dice. Warranty is out of the question because I bought an imported version off eBay before it was officially available on Google play here in India.
From what I've understood this may be recoverable. People have made fixes for some HTC devices etc. Basically if someone could makes a "QCN" backup from a working device I may be able to restore the bootloader using the Qualcomm drivers. Or would this tool be of any use?
http://forum.xda-developers.com/showthread.php?t=1308546
Not too familiar with all this low level flashing stuff - so need a second opinion. Will try again today evening, leaving it unplugged this time.
crash91 said:
(...)
From what I've understood this may be recoverable. People have made fixes for some HTC devices etc. Basically if someone could makes a "QCN" backup from a working device I may be able to restore the bootloader using the Qualcomm drivers. Or would this tool be of any use?
http://forum.xda-developers.com/showthread.php?t=1308546
Not too familiar with all this low level flashing stuff - so need a second opinion. Will try again today evening, leaving it unplugged this time.
Click to expand...
Click to collapse
Yeah, I don't know much about that either, sorry, I'm not going to be much help there.
Ok, am I the first person with this problem? When the device is plugged in to the PC and I try holding down the buttons (tried almost every combo I could think of) the disconnect/connect sound plays and the tablet is re-detected by device manager as QHSUSB_DLOAD. Im extremely disappointed that this can happen even without screwing around with the system.
The warranty card with the tablet seems to imply international warranty although not specifically stated, it's from the US, so would taking it to an Asus center in India be of any use?
crash91 said:
Ok, am I the first person with this problem? When the device is plugged in to the PC and I try holding down the buttons (tried almost every combo I could think of) the disconnect/connect sound plays and the tablet is re-detected by device manager as QHSUSB_DLOAD. Im extremely disappointed that this can happen even without screwing around with the system.
The warranty card with the tablet seems to imply international warranty although not specifically stated, it's from the US, so would taking it to an Asus center in India be of any use?
Click to expand...
Click to collapse
check this: http://forum.xda-developers.com/showthread.php?t=2415471
and try holding your power button for 30-35secs
malikmoreni said:
check this: http://forum.xda-developers.com/showthread.php?t=2415471
and try holding your power button for 30-35secs
Click to expand...
Click to collapse
Only works for a couple of HTC devices, tried asking in the IRC channel and was told that it wont help at all. Held the power button for over a minute nothing happens, still the same in device manager although I can tell it restarts back into the same mode from the connect/disconnect sound.
crash91 said:
Only works for a couple of HTC devices, tried asking in the IRC channel and was told that it wont help at all. Held the power button for over a minute nothing happens, still the same in device manager although I can tell it restarts back into the same mode from the connect/disconnect sound.
Click to expand...
Click to collapse
Try using the Qualcomm product support Tool google "QPST" for download links
malikmoreni said:
Try using the Qualcomm product support Tool google "QPST" for download links
Click to expand...
Click to collapse
Downloaded them, I think a USB driver is needed for the tablet to show up as a COM port, I've tried a few drivers but QPST Configuration was unable to connect. Even if it were able to connect I dont know what to do after that, it seems that some device-specific hex/qcn/xml files are needed and this is the mode the manufacturer uses when flashing the bootloader. Does this mean that my bootloader somehow magically corrupted itself?!
crash91 said:
Downloaded them, I think a USB driver is needed for the tablet to show up as a COM port, I've tried a few drivers but QPST Configuration was unable to connect. Even if it were able to connect I dont know what to do after that, it seems that some device-specific hex/qcn/xml files are needed and this is the mode the manufacturer uses when flashing the bootloader. Does this mean that my bootloader somehow magically corrupted itself?!
Click to expand...
Click to collapse
obviously your bootloader Got Corrupted, i'm outta options here....Please lemme know if you fix this; incase if i run into this too:good:
---------- Post added at 08:44 PM ---------- Previous post was at 08:36 PM ----------
malikmoreni said:
obviously your bootloader Got Corrupted, i'm outta options here....Please lemme know if you fix this; incase if i run into this too:good:
Click to expand...
Click to collapse
okay, i think i found a solution. search the factory image for the bootloader and flash with fastboot
try following the instructions here
http://forums.androidcentral.com/go...1477-guide-nexus-7-factory-image-restore.html
use "fastboot flash bootloader ****************#####***###*#.img" when you find the bootloader
GOODLUCK:good:
Or you can't get it to fastboot mode also?
malikmoreni said:
obviously your bootloader Got Corrupted, i'm outta options here....Please lemme know if you fix this; incase if i run into this too:good:
---------- Post added at 08:44 PM ---------- Previous post was at 08:36 PM ----------
okay, i think i found a solution. search the factory image for the bootloader and flash with fastboot
try following the instructions here
http://forums.androidcentral.com/go...1477-guide-nexus-7-factory-image-restore.html
use "fastboot flash bootloader ****************#####***###*#.img" when you find the bootloader
GOODLUCK:good:
Or you can't get it to fastboot mode also?
Click to expand...
Click to collapse
That's exactly the thing, it doesnt get into fastboot mode or anything, I assume you need a working bootloader to be able to boot fastboot? If it was in fastboot I would have attempted this already.
Anyway the seller says that the item is covered under a 1 year international warranty, thats my only chance now I guess....
The thing that concerns me is that I was completely stock, locked bootloader and unrooted. Only installed the official OTA updates (no sideloading either).
For those who are interested - I finally had time to drop by the service centre. They replaced the battery and motherboard (it was under warranty). I was expecting them to do some magic with QPST or something though.
The same has just happened to me, but I'm out of luck, the warranty has expired.
Did anyone have managed to fix it with the QPST drivers?
thanks.
Fyi, http://www.androidpolice.com/2015/0...rate-not-likely-a-result-of-firmware-updates/

[Q] one hell of a brick :(

power button is broken.
Flashed an odin stock (tried multiple) and I m still getting stuck on samsung logo
with no power button, I cant get to recovery to wipe/reset
any ideas boys?
ordered the replacement power switch but it's a long wait for it to reach me. I not in the US currently
nabilbek said:
power button is broken.
Flashed an odin stock (tried multiple) and I m still getting stuck on samsung logo
with no power button, I cant get to recovery to wipe/reset
any ideas boys?
ordered the replacement power switch but it's a long wait for it to reach me. I not in the US currently
Click to expand...
Click to collapse
http://youtu.be/pqBgbN8NLjI
sounds crazy , but i did this to my sons t989 a year ago and still working-might be worth a try
Fasted12 said:
http://youtu.be/pqBgbN8NLjI
sounds crazy , but i did this to my sons t989 a year ago and still working-might be worth a try
Click to expand...
Click to collapse
tried a lot man
the button seems completely dead
nabilbek said:
tried a lot man
the button seems completely dead
Click to expand...
Click to collapse
you know, unless you have a touch recovery , getting there wont help with a bad power button
Fasted12 said:
you know, unless you have a touch recovery , getting there wont help with a bad power button
Click to expand...
Click to collapse
yep ... using latest twrp
but I dont think there is a way into recovery if you are unable to boot the phone and no power button
I need something like a odin flashable tar that wipes cache /resets (because this usually fixes the stuck on logo)
nabilbek said:
yep ... using latest twrp
but I dont think there is a way into recovery if you are unable to boot the phone and no power button
I need something like a odin flashable tar that wipes cache /resets (because this usually fixes the stuck on logo)
Click to expand...
Click to collapse
flashing anything with a fluky power button is very hazardous. If it goes off in the middle of something, your device could be toast.
I'd get it fixed before doing anything. if it can't be fixed....phone shopping time! [emoji106]
KJ said:
flashing anything with a fluky power button is very hazardous. If it goes off in the middle of something, your device could be toast.
I'd get it fixed before doing anything. if it can't be fixed....phone shopping time! [emoji106]
Click to expand...
Click to collapse
I ordered a new power switch but I am bad at waiting
nabilbek said:
I ordered a new power switch but I am bad at waiting
Click to expand...
Click to collapse
You're risking your phone flashing anything.
But its yours to do with as you wish. Just would suck to finally get that power button delivered....and not have a functioning phone to use it with.
nabilbek said:
I ordered a new power switch but I am bad at waiting
Click to expand...
Click to collapse
you could try installing adb http://forum.xda-developers.com/showthread.php?t=1853159
Fasted12 said:
you could try installing adb http://forum.xda-developers.com/showthread.php?t=1853159
Click to expand...
Click to collapse
I am aware and have adb. thing is phone is bricked after last update (stuck at logo)
so i can only get into download mode ....wish there was a way to get from download to recovery but I cant find any
without the use of the power button ofc ...
nabilbek said:
I am aware and have adb. thing is phone is bricked after last update (stuck at logo)
so i can only get into download mode ....wish there was a way to get from download to recovery but I cant find any
without the use of the power button ofc ...
Click to expand...
Click to collapse
sorry man, hope the button install goes well
hmm
Fasted12 said:
sorry man, hope the button install goes well
Click to expand...
Click to collapse
i have the same exact problem minus my power button, it works normal
and i get firmware upgrade encountered an issue
i get that screen when i normal boot it, try recovery, or download mode, everything results to firmware upgrade encountered an issue
not sure if i should post here with this or not, just letting you know
ovenbird said:
i have the same exact problem minus my power button, it works normal
and i get firmware upgrade encountered an issue
i get that screen when i normal boot it, try recovery, or download mode, everything results to firmware upgrade encountered an issue
not sure if i should post here with this or not, just letting you know
Click to expand...
Click to collapse
i guess the question is, can you get your phone to download mode...
download mode
Fasted12 said:
i guess the question is, can you get your phone to download mode...
Click to expand...
Click to collapse
it reaches download mode no matter what i do ( the firmware error is in the download mode )
the problem is while in download mode nothing recognizes it ( its not normal download mode )
Im getting this :
I cant post links but this is the image i can send you
cdn.droidviews.com/wp-content/uploads/2013/09/Firmware-upgrade-encountered-an-issue jpg
put a DOT in there
ovenbird said:
it reaches download mode no matter what i do ( the firmware error is in the download mode )
the problem is while in download mode nothing recognizes it ( its not normal download mode )
Im getting this :
I cant post links but this is the image i can send you
cdn.droidviews.com/wp-content/uploads/2013/09/Firmware-upgrade-encountered-an-issue jpg
put a DOT in there
Click to expand...
Click to collapse
if kies wont recognize, nor will odin-i dont know--try reposting maybe get some new views, sorry
ovenbird said:
i have the same exact problem minus my power button, it works normal
and i get firmware upgrade encountered an issue
i get that screen when i normal boot it, try recovery, or download mode, everything results to firmware upgrade encountered an issue
not sure if i should post here with this or not, just letting you know
Click to expand...
Click to collapse
this happened with me once. long long time ago
But I swear I cant remember why
here try this : https://www.youtube.com/watch?v=GbAJH_mL6N4
another well explained guide for solving using kies : http://androidcentral.us/2013/09/how-to-fix-firmware-upgrade-encountered-an-issue-on-kies/
In case anyone doesn't know.....Odin won't see your device if kies is running. You need to kill the kies process. Make sure there's no mention of it in windows task manager.
Then, if your drivers are installed right....Odin should see your phone.
Also, I've always had the best luck with Odin 3.04.
---------- Post added at 07:31 PM ---------- Previous post was at 07:30 PM ----------
Or uninstall kies... I never once used it for anything.
KJ said:
In case anyone doesn't know.....Odin won't see your device if kies is running. You need to kill the kies process. Make sure there's no mention of it in windows task manager.
Then, if your drivers are installed right....Odin should see your phone.
Also, I've always had the best luck with Odin 3.04.
---------- Post added at 07:31 PM ---------- Previous post was at 07:30 PM ----------
Or uninstall kies... I never once used it for anything.
Click to expand...
Click to collapse
exactly ... kies is utter ****!
I would never recommend it too. A pure waste of time
Also, see what your phone shows as in windows device manager. If its listed with an "!" on it....the drivers may need to be reinstalled. If windows doesn't see it correctly, either will Odin. ?
Problem solved, I reinstalled drivers.
That simple.
Thanks for the video btw, I even added the guy from youtube channel

[Q] How do I get download mode working?

I rooted my phone about a month ago using PurpleDrake and now I'm on SkyDragon G3 V0.0.5 w/ TWRP. I had never been able to boot into download but thought nothing of it since it wasn't crucial at the time. Then, yesterday I accidentally took the new OTA update, but was able to fix it with the ADB commands that others have posted. Being able to get into download mode would have made life easier so I tried to fix it today. Flashed stock boot.img and tried to re-run PurpleDrake to see if I missed a step but it won't detect my phone for a reason I don't know. At my wit's end.
Not being able to get into download mode is a concern in case I ever to fully return to stock. Wondering if any one has some insight on how I can do that or if there's some image file I need to flash, etc.?
Thanks!
mypenismighty said:
I rooted my phone about a month ago using PurpleDrake and now I'm on SkyDragon G3 V0.0.5 w/ TWRP. I had never been able to boot into download but thought nothing of it since it wasn't crucial at the time. Then, yesterday I accidentally took the new OTA update, but was able to fix it with the ADB commands that others have posted. Being able to get into download mode would have made life easier so I tried to fix it today. Flashed stock boot.img and tried to re-run PurpleDrake to see if I missed a step but it won't detect my phone for a reason I don't know. At my wit's end.
Not being able to get into download mode is a concern in case I ever to fully return to stock. Wondering if any one has some insight on how I can do that or if there's some image file I need to flash, etc.?
Thanks!
Click to expand...
Click to collapse
volume up button + plug the phone into the computer here is everything you need for stock in one thread http://forum.xda-developers.com/tmobile-lg-g3/general/firmware-t-mobile-lg-g3-t2818667
mypenismighty said:
I rooted my phone about a month ago using PurpleDrake and now I'm on SkyDragon G3 V0.0.5 w/ TWRP. I had never been able to boot into download but thought nothing of it since it wasn't crucial at the time. Then, yesterday I accidentally took the new OTA update, but was able to fix it with the ADB commands that others have posted. Being able to get into download mode would have made life easier so I tried to fix it today. Flashed stock boot.img and tried to re-run PurpleDrake to see if I missed a step but it won't detect my phone for a reason I don't know. At my wit's end.
Not being able to get into download mode is a concern in case I ever to fully return to stock. Wondering if any one has some insight on how I can do that or if there's some image file I need to flash, etc.?
Thanks!
Click to expand...
Click to collapse
which adb commands did you use to fix it because I have the same problem and how are you able to access adb command prompts?
jameslee2 said:
which adb commands did you use to fix it because I have the same problem and how are you able to access adb command prompts?
Click to expand...
Click to collapse
I linked you in the other thread
ThePagel said:
volume up button + plug the phone into the computer here is everything you need for stock in one thread http://forum.xda-developers.com/tmobile-lg-g3/general/firmware-t-mobile-lg-g3-t2818667
Click to expand...
Click to collapse
Thanks for the reply. Sorry, I could have been more clear in my post. I have visited that thread and held volume up while plugging my phone in, but all that happens is the LG logo screen pops up for a few seconds, then the phone shows the charging percentage. When I try to do it from the advanced reboot menu when the phone is powered on, it simply reboots into the system. Same deal if I try to do it from TWRP. Really not sure what I'm doing wrong here. Is it possible that I somehow corrupted the bootloader or something else that's hopefully fixable?
mypenismighty said:
Thanks for the reply. Sorry, I could have been more clear in my post. I have visited that thread and held volume up while plugging my phone in, but all that happens is the LG logo screen pops up for a few seconds, then the phone shows the charging percentage. When I try to do it from the advanced reboot menu when the phone is powered on, it simply reboots into the system. Same deal if I try to do it from TWRP. Really not sure what I'm doing wrong here. Is it possible that I somehow corrupted the bootloader or something else that's hopefully fixable?
Click to expand...
Click to collapse
Are you using the stock data cable. Also try pulling the battery for 10 sec then pluging in the USB.
Sent from my LG-D851 using XDA Free mobile app
jameslee2 said:
which adb commands did you use to fix it because I have the same problem and how are you able to access adb command prompts?
Click to expand...
Click to collapse
adb reboot download
---------- Post added at 07:50 AM ---------- Previous post was at 07:46 AM ----------
mypenismighty said:
Thanks for the reply. Sorry, I could have been more clear in my post. I have visited that thread and held volume up while plugging my phone in, but all that happens is the LG logo screen pops up for a few seconds, then the phone shows the charging percentage. When I try to do it from the advanced reboot menu when the phone is powered on, it simply reboots into the system. Same deal if I try to do it from TWRP. Really not sure what I'm doing wrong here. Is it possible that I somehow corrupted the bootloader or something else that's hopefully fixable?
Click to expand...
Click to collapse
I think you made a wrong procedure.
Take the battery out and put back in.
Press and hold volume up button.
Plug in the cable.
Release the button when you see download mode screen.
In addition, make sure you have LG PC Suite with phone driver installed.
Cal-El said:
Are you using the stock data cable. Also try pulling the battery for 10 sec then pluging in the USB.
Sent from my LG-D851 using XDA Free mobile app
Click to expand...
Click to collapse
mingkee said:
adb reboot download
---------- Post added at 07:50 AM ---------- Previous post was at 07:46 AM ----------
I think you made a wrong procedure.
Take the battery out and put back in.
Press and hold volume up button.
Plug in the cable.
Release the button when you see download mode screen.
In addition, make sure you have LG PC Suite with phone driver installed.
Click to expand...
Click to collapse
Thanks but I have already done this with the same result as I've described. I know how it is supposed to be done with the hardware keys and I am using the stock data cable. Even watched a YouTube video demonstrating how it is to be done. Are there any other possibilities?
Just tried it with my nexus 7 cable on a different usb port (which I had done couple times before) and it worked this time! Not sure why or how but appreciate the help, everyone!

[Q] help, phone won't turn on after flashing 20b

Hi, I tried to flash 20b through twrp tonight.
I did factory reset, then flashed the bootstack, then flashed the system. But after that, my phone won't power on. I tried to remove the battery, holding power button for a long time, or power+volumn down.
The phone just does not respond at all. Can anybody help? Thanks!
souvenir1977 said:
Hi, I tried to flash 20b through twrp tonight.
I did factory reset, then flashed the bootstack, then flashed the system. But after that, my phone won't power on. I tried to remove the battery, holding power button for a long time, or power+volumn down.
The phone just does not respond at all. Can anybody help? Thanks!
Click to expand...
Click to collapse
take the battery out and put it back in and try to power it on. Repeat a few times, if that doesn't help we'll try other things.
Still_living714 said:
take the battery out and put it back in and try to power it on. Repeat a few times, if that doesn't help we'll try other things.
Click to expand...
Click to collapse
Thank you Still_living714, I tried this multiple times, but it does not work. Anything else I can try?
souvenir1977 said:
Thank you Still_living714, I tried this multiple times, but it does not work. Anything else I can try?
Click to expand...
Click to collapse
have you tried putting it into download mode?
Still_living714 said:
have you tried putting it into download mode?
Click to expand...
Click to collapse
If you are talking about holding volume button up and plug into computer, I tried that and the phone does not respond either...
souvenir1977 said:
If you are talking about holding volume button up and plug into computer, I tried that and the phone does not respond either...
Click to expand...
Click to collapse
hmm very weird. I had a similar problem were the phone wouldn't boot unless I had it plugged into the charger or my computer,give that a try.
---------- Post added at 12:12 AM ---------- Previous post was at 12:10 AM ----------
souvenir1977 said:
If you are talking about holding volume button up and plug into computer, I tried that and the phone does not respond either...
Click to expand...
Click to collapse
when I had that problem I figured out that it was the battery that was making the phone act weird. Since LG sent me another battery when they had the promotion I used the other spare and that fixed it for me.
This happens right after I flashed the new system, I doubt it is the batter problem. If I plugged into the computer it still won't power on.
(If I remove the battery and plug into computer, the screen of the phone does show some symbol, probably regarding missing memory).
Let me try to see if I use kdz flash to reinstall the system. Thanks for the help.
souvenir1977 said:
This happens right after I flashed the new system, I doubt it is the batter problem. If I plugged into the computer it still won't power on.
(If I remove the battery and plug into computer, the screen of the phone does show some symbol, probably regarding missing memory).
Let me try to see if I use kdz flash to reinstall the system. Thanks for the help.
Click to expand...
Click to collapse
well it's hard to say but without the phone being able to boot there's not anything you can do.....
you are right, flashing need the download mode....
You're getting adnroidserial xxxx in device manager when you connect it to pc?
i think you bricked phone
jkjambo said:
You're getting adnroidserial xxxx in device manager when you connect it to pc?
i think you bricked phone
Click to expand...
Click to collapse
No it just shows regular LGE com port and I am not able to flash anything. You are right, it's hard bricked I am not sure what went wrong with my twrp flashing procedure though. Will contact with LG for repair.
souvenir1977 said:
No it just shows regular LGE com port and I am not able to flash anything. You are right, it's hard bricked I am not sure what went wrong with my twrp flashing procedure though. Will contact with LG for repair.
Click to expand...
Click to collapse
that's what i mean , lge serial xxx , don't remeber exactly . it's in qhsusb mode , hardbricked ...
there is some indian guys who do that , some for free, some for little amount of money ...
search for lg g3 unbrick Qhsusb 9008... don't waste time on tutorials , non of them works with D851 ... i'm in same boat (again ) and tried everything .. nothing works , unless you're connected to lg servers directly , search for people which fixs them
http://forum.xda-developers.com/lg-...1-d855-qhsusbbulk-t3101435/page2#post60751870
here you go.
this guy helped me for free , you can contact with him
Thanks! Currently my phone is at LG service since it is still in warranty. I will definitely try that next time (knock on wood...)
jkjambo said:
http://forum.xda-developers.com/lg-...1-d855-qhsusbbulk-t3101435/page2#post60751870
here you go.
this guy helped me for free , you can contact with him
Click to expand...
Click to collapse
souvenir1977 said:
Thanks! Currently my phone is at LG service since it is still in warranty. I will definitely try that next time (knock on wood...)
Click to expand...
Click to collapse
This is why You don't flash the boot chain unless you absolutely must. I was running 20B with the old boot chain (other than rpm, that was updated) and it ran just fine. If you get a bad flash on the boot chain your sol.

Hard bricked and Solved.

First things first, NEVER RESTORE A TWRP BACKUP YOU CREATED IN ONE VERSION IN ANOTHER VERSION.
Now coming to my situation, I installed the Deodexed Stable Zui Oreo ROM but as usual got bored with the zui and wanted to go back to my fav Pixel experience Rom so I clean flashed it from the unofficial hendibudi recovery but I couldn't use my internal storage and I once earlier read in another thread that installing 3.0.3 decrypts it so I installed that recovery and clean flashed AEX5.2 Rom this time and same internal storage problem continued so my lazy ass thought I'll restore the TWRP backup I created when I unlocked the bootloader instead of flashing through qfil and that was my mistake.
I created the backup on 3.1.0 but now I was on 3.0.3 so as soon as I restored the backup and rebooted, my phone didn't turn on, no zuk logo or led or anything, if I long press the power button it just vibrates and the led flashes for a sec, that's all.
Edit: feels like this thread belongs to the News/Discussions section than here but meh
Edit2: Solution in Post #4
It seems like qfil, mi flash method is last as your bootloader is also corrupted, and this happens because there are many critical hidden partition on our device so it mess up, when you install first twrp releases, you will notice there are 7 8 partition and in latest one they all are hidden.
narshi shukla said:
It seems like qfil, mi flash method is last as your bootloader is also corrupted, and this happens because there are many critical hidden partition on our device so it mess up, when you install first twrp releases, you will notice there are 7 8 partition and in latest one they all are hidden.
Click to expand...
Click to collapse
well if it's that easy I wouldn't be worried at all but unfortunately my situation is a bit different, I can't flash anything as my phone is recognized as 900E, to flash anything the phone should be recognized in 9008(edl) mode and for that I have to strip the cable and short circuit with it and all that, which is really a hit or miss kinda situation so kinda worried!
But seems like I have no other choice so let's see what happens, I tried stripping the stock usb cable and it got split into half lmao
now I'll buy another cable and will try the copper wire method instead of splitting it
Edit: yeah ik that different versions of TWRP are different but I wanted to restore only the data partition and my data was already encrypted so I thought I have nothing to lose, I was like if it doesn't work I'll flash the full firmware again but didn't expect it to fully brick the phone
Okay the primary reason for me creating this thread was to let y'all know how I bricked my device so that y'all won't repeat my mistake but I saw some people here and there recently asking how to resurrect their device so thought I'll share how I got mine working wishing it'll help such people.
My phone was completely dead, the hardware buttons weren't doing anything, the phone doesn't power off but all I could see was a black screen, so I had to follow THIS GUIDE.
But the above situation is a rarity, I guess most of you ppl could get to the zuk logo or your led keeps flashing and you can use your hardware buttons, in such situations, follow THIS GUIDE.
The above links are for you to get your phone to 9008 mode to be able to flash the stock firmware, but if you don't know how to flash,
refer THIS GUIDE.
Flashing problem
i got phone into 9008 port following ur guide and installed qfil everything went good problem is after hitting download buton in qfil after some time it says error "sahara failed".
seetharam55555 said:
i got phone into 9008 port following ur guide and installed qfil everything went good problem is after hitting download buton in qfil after some time it says error "sahara failed".
Click to expand...
Click to collapse
Only one solution is there.. after u get sahara error.. disconnect your phone and cable, then again turn your phone on. And then turn it off... After that press volume up+ power button simultaneously while connecting to the usb port, if you are successful, within 2-3 seconds you have to press the download button on QFIL.. then it should work... You can try 2-3 times... For demo, but thia is the only way out of this hard brick
.. i suffered in the sahara error for 3 days since i flashed OOS on my z2 , till today i finally got the solution
sidS6 said:
Only one solution is there.. after u get sahara error.. disconnect your phone and cable, then again turn your phone on. And then turn it off... After that press volume up+ power button simultaneously while connecting to the usb port, if you are successful, within 2-3 seconds you have to press the download button on QFIL.. then it should work... You can try 2-3 times... For demo, but thia is the only way out of this hard brick
.. i suffered in the sahara error for 3 days since i flashed OOS on my z2 , till today i finally got the solution
Click to expand...
Click to collapse
thanks for response.What do u mean by "succesfull".and other thing to turn off the phone it takes me nearly 2 min constant pressing of power button, is this normal.
seetharam55555 said:
thanks for response.What do u mean by "succesfull".and other thing to turn off the phone it takes me nearly 2 min constant pressing of power button, is this normal.
Click to expand...
Click to collapse
Not 2 minutes but i think 30 seconds at max.. and by successful i mean that you get into Qualcomm 9008 qdloader mode in qfil
---------- Post added at 05:13 PM ---------- Previous post was at 05:11 PM ----------
The main thing is you have to immediately press the download button(within 2-3 seconds) after reconnecting into 9008 mode
Briked my phone flasing oos, solved it in the first go usimg qpst method.
Rahil4321 said:
Briked my phone flasing oos, solved it in the first go usimg qpst method.
Click to expand...
Click to collapse
You didn't got Sahara error?
seetharam55555 said:
thanks for response.What do u mean by "succesfull".and other thing to turn off the phone it takes me nearly 2 min constant pressing of power button, is this normal.
Click to expand...
Click to collapse
Were u able to unbrick?
Thanks
sidS6 said:
Were u able to unbrick?
Click to expand...
Click to collapse
yes it worked but as u said we have to hit download button within 2 sec....thank you very much u nearly saved 1000 rupees for me.
seetharam55555 said:
yes it worked but as u said we have to hit download button within 2 sec....thank you very much u nearly saved 1000 rupees for me.
Click to expand...
Click to collapse
Congrats bro! But i lost my 3 cables in ths process.. that equals 700 rs.. but i learned a great lesson? no probs
seetharam55555 said:
i got phone into 9008 port following ur guide and installed qfil everything went good problem is after hitting download buton in qfil after some time it says error "sahara failed".
Click to expand...
Click to collapse
dude just cut the cable and make intersection betwwen vlack and gree wire and put the cable into phone , got edl mode simple ways
sidS6 said:
Congrats bro! But i lost my 3 cables in ths process.. that equals 700 rs.. but i learned a great lesson? no probs
Click to expand...
Click to collapse
Why did you wasted 3 cables for?
seetharam55555 said:
Why did you wasted 3 cables for?
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Click to collapse
Coz while spliiting, one got split into half ? and the other one got bent so it was unusable.. i had buy the third one
sidS6 said:
Coz while spliiting, one got split into half ? and the other one got bent so it was unusable.. i had buy the third one
Click to expand...
Click to collapse
Ohh you tried that method i did like this
sidS6 said:
You didn't got Sahara error?
Click to expand...
Click to collapse
You don't need to flash via qpst when you see logo but device wont boot it mean you locked your bootloader so all you need to do is unlock it again that's all
Nirmal0001 said:
You don't need to flash via qpst when you see logo but device wont boot it mean you locked your bootloader so all you need to do is unlock it again that's all
Click to expand...
Click to collapse
Unfortunately learnt this after unbricking my device
I had installed RR mix rom in my Zuk Z2 plus. while trying to enter fastboot mode, it went off. Now it is completely dead. not being recoganized in my PC.In device manager it is not shown. Tried to deep flash through Qfil, but didn't recoganize port.If i plug in charger also no LED indication, If I disconnect battery & plug in for charging, white LED slowly blinks, in the same mode if I connect charger blinking white LED continues. But once I remove charge & reconnect it shows nothing. again if I remove battery & reconnect, again white LED starts blinking. Apart from this nothing is shown, phone completely dead. Can anybody help please. I tried through Qfil, tried by shorting black & green cable, all types of key combinations.

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