Develop Bugs

Hard bricked xperia play ;( [Fixed Thanks to Alejandrissimo]

I went to flash a kernel via fast boot it was going all good till i tried to boot it up since then ive tried 3 computers they dosent recognise it the charger won't charge it wont go into fastboot and the only thing it dies is vibrate and show blank screen it dosent show any light from the power switch not even a red one any fixes i no about Alejandrissimo but idk if he can fix this one I think my play is dead does anyone have anything I could do and if I took it the pace I got it from what would they say would they repair it or what or maybe replace it on the spot the bootloader was unlocked BTW running ics

what happens if you hold search when plugging in the usb cable?

chevyowner said:
what happens if you hold search when plugging in the usb cable?[/QUOTE
Nothing I wish it did then i could fix the fu***** thing
Click to expand...
Click to collapse

try taking the battery out and replace the hold search and plug in usb cable but never touch the power button

tried that
if i too
k it to the local store i got it from would they give me a new one???

Use flashtool to restore to default firmware. Then re try

IMO it is not bricked, BUT you need to reflash the kernel or flash a different kernel. not sure if this applies to the R800 but do you have a charge only cable?

chevyowner said:
IMO it is not bricked, BUT you need to reflash the kernel or flash a different kernel. not sure if this applies to the R800 but do you have a charge only cable?
Click to expand...
Click to collapse
Computer dosnt recognise it and it dosent enter fastboot and already tried flashtool

extremetempz said:
Computer dosnt recognise it and it dosent enter fastboot and already tried flashtool
Click to expand...
Click to collapse
Did you download the proper ftf file for your phone and place it in the "firmware" folder?

This happened to me. Get flash tool and do not connect t until it prompts you. So select the file you wanna flash and such and at the end then connect your phone itll work. Just take your battery out each time you fail to make sure your phone is off. Believe me I was worried to but for some reason that trick worked.
Sent from my Play using xda app-developers app
---------- Post added at 03:12 AM ---------- Previous post was at 03:08 AM ----------
Oh I forgot... hold the back button to make it enter flash boot (different that fastboot when you are holding search) flash the stock firmware so you can start over.
Sent from my Play using xda app-developers app

I know you mentioned Alejandrissimo, so I just want to ask, how long did it take for him to get your Google Talk invite? I contacted him by the website and it told me that it cost 24 USD and to add him on Google Talk, I sent him $24 through paypal, the transaction completed according to the site so I'm sure he got it, but I've been waiting on Google Talk for about 3 hours now. I'm sure he's probably busy right now though. Just curious.

Okay, but the computer doesn't recognize the PHONE!
When I connect the phone to the computer, the LED flashes red and the computer says there is something plugged, but not identified, preventing the flash boot.

Now i can connect the phone to the PC, but only lights up the green LED (charging, i guess), even if i hold the "back" or the "search" button while plugging the USB.
This LED is the only proof of, at least, it is receiving energy.

Konae said:
Now i can connect the phone to the PC, but only lights up the green LED (charging, i guess), even if i hold the "back" button while plugging the USB.
This LED is the only proof of, at least, it is receiving energy.
Click to expand...
Click to collapse
I still can't figure out what's happening. Please someone help me!

Konae said:
I still can't figure out what's happening. Please someone help me!
Click to expand...
Click to collapse
plug in phone holding search button if pc recognize it and if you have adb drivers installed flash any kernel you want

creative_md said:
plug in phone holding search button if pc recognize it and if you have adb drivers installed flash any kernel you want
Click to expand...
Click to collapse
>>
Konae said:
Now i can connect the phone to the PC, but only lights up the green LED (charging, i guess), even if i hold the "back" or the "search" button while plugging the USB.
This LED is the only proof of, at least, it is receiving energy.
Click to expand...
Click to collapse

THANK YOU!
MGSBigBoss said:
This happened to me. Get flash tool and do not connect t until it prompts you. So select the file you wanna flash and such and at the end then connect your phone itll work. Just take your battery out each time you fail to make sure your phone is off. Believe me I was worried to but for some reason that trick worked.
Sent from my Play using xda app-developers app
---------- Post added at 03:12 AM ---------- Previous post was at 03:08 AM ----------
Oh I forgot... hold the back button to make it enter flash boot (different that fastboot when you are holding search) flash the stock firmware so you can start over.
Sent from my Play using xda app-developers app
Click to expand...
Click to collapse
FINALLY. Your advice worked. I did the same thing the OP did, flashed a kernal from cm9. I couldn't even get the charger to recognize or do anything. After taking battery out and starting flashtool process first, It took 4 times with flashtool. Thanks again.

Beanerman said:
FINALLY. Your advice worked. I did the same thing the OP did, flashed a kernal from cm9. I couldn't even get the charger to recognize or do anything. After taking battery out and starting flashtool process first, It took 4 times with flashtool. Thanks again.
Click to expand...
Click to collapse
It is not working for me. Could you guys give some more details of how you did it? I have tried already like 15 times and no luck. Also, is it happening to you guys that the phone will ONLY go into flashmode? I can flash anything into it but it will not boot, it will just stay in flashmode.
What I am doing is basically have the phone without battery and then start flashtool until it asks me to connect the phone. At that point I place the battery and connect the phone to the usb without pressing the BACK key, as it is not needed in my phone. Once the flashing is done, the phone goes into flashmode again.
Did this happen to you too?

Cesarramson,
Yep, sounds familiar. Is your phone unlocked? Is it r800x or another?
Sent from my DROIDX using xda premium

I got this problem too when i'm flashing doomkernel. Will try this when i got home. i hope it will fix my problem.

[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] E988 Cant get in Download mode (no custom recovery)

Hello all, I have a problem with my LG oprimus G pro:
I have updated to official 4.4.2 and it was a bit buggy. So I decided to flash CyanogenMod
So the first thing is to root the phone I did that from here
http://forum.xda-developers.com/showthread.php?t=2695263
post #4 guy named galapagos has roottool.kitkat.zip attached. So I downloaded roottool.kitkat.zip unpacked it to "root" folder
folder tree:
--------root
--root.zip
--adb.exe
--AdbWinApi.dll
--AdbWinUsbApi.dll
--StartRoot.bat
and ran the StartRoot.bat that I found inside.
All it did was reboot the phone to stock recovery waited for me to click install from sideload and it than executed next command:
.\adb.exe sideload root.zip
the phone rebooted, and I installed rootchecker app to test if I had root. The test was positive. cool :laugh:
now I wanted to install CyanogenMod I downloaded the latest build from here http://download.cyanogenmod.org/?device=e980&type=
I renamed the file I downloaded to root.zip placed it in the folder where StartRoot.bat is (replacing the old root.zip) and ran StartRoot.bat once again.
the phone verified the root.zip and started to install it. :angel: In the middle of installation it aborted the installation and rebooted the phone. it will not boot to android system (I wonder why ) instead I am greated with LG security error after witch the phone turns itself off.
I have tried getting into download mode buy key combination= hold volume+ and volume - together and connect usb. It only starts charging.
when I press volume down+ home+power it takes me to factory hard reset. but the reset changes nothing...
do you have any ideas how I can unbrick my phone? Will USB jig work on LG phones?

Manually uninstall and reinstall LG drivers. text me if it works for you.
Sent from my SGH-T959 using XDA Free mobile app

I got the problem too with my G PRO, that I get a hard time to get into download mode. It always starts the phone. So just be patient, try it more, just remove the battery if the method gets awry. I tried it many times, then it worked.
---------- Post added at 01:29 PM ---------- Previous post was at 01:28 PM ----------
OR
You can try to plug your phone on the PC, go to cmd within adb, key in adb reboot recovery. Voila.

MitoTakatori said:
I got the problem too with my G PRO, that I get a hard time to get into download mode. It always starts the phone. So just be patient, try it more, just remove the battery if the method gets awry. I tried it many times, then it worked.
---------- Post added at 01:29 PM ---------- Previous post was at 01:28 PM ----------
OR
You can try to plug your phone on the PC, go to cmd within adb, key in adb reboot recovery. Voila.
Click to expand...
Click to collapse
you clearly didnt read the whole post
I dont have the system to boot to

souleater11 said:
Manually uninstall and reinstall LG drivers. text me if it works for you.
Sent from my SGH-T959 using XDA Free mobile app
Click to expand...
Click to collapse
tried many times the "normal way" and with remove battery way
no luck...
I even tried with live linux usb and still no luck..
I dont know why wold drivers have anything to do with download mode?
if you have e988 you could upload a video on youtube on how to get to download mode DD
I cant seem to find any videos on that for my phone.

Damjan94 said:
tried many times the "normal way" and with remove battery way
no luck...
I even tried with live linux usb and still no luck..
I dont know why wold drivers have anything to do with download mode?
if you have e988 you could upload a video on youtube on how to get to download mode DD
I cant seem to find any videos on that for my phone.
Click to expand...
Click to collapse
I also have the same problem with my F240S, cann't go to download mode, and can't flash this damn Lollipop kdz

Hello everyone, its been a while, thainks to all for trying to help me
In case anyone is wondering, after I realised I couldnt do anything myself, I gave the phone to phone service.
Acctualy, I gave it to couple of services, some of them didnt know what the problem was, and they were unable to Jtag it.
The others said it was the problem with the emmc chip.
the last service I gave it to (as I understand) tried to flash it with firmware? that isnt made for E988.
Now when I power it on the screen is blank and the button led is changing collers.
I have accsepted the fact that the phone is dead

kuzagar said:
I also have the same problem with my F240S, cann't go to download mode, and can't flash this damn Lollipop kdz
Click to expand...
Click to collapse
have you bricked it as well, or can you get back in the andriod os?

Damjan94 said:
have you bricked it as well, or can you get back in the andriod os?
Click to expand...
Click to collapse
my problem was solved....actually I tried and retried a few times the same technique...press volume up + volume down and plug in usb cable...finally it worked and I flashed the loliipop kdz...many thanks

yea, i was going to say hold down volume + and plug in usb cable to get into download mode. if that doesn't work, it's a world of headache.

it's not just the phone you should check if youre having problems flashing/rooting/going into download mode, you should also check your computer, do a reboot or try reinstalling your mobile drivers and the apps you are going to use.

Damjan94 said:
Hello all, I have a problem with my LG oprimus G pro:
I have updated to official 4.4.2 and it was a bit buggy. So I decided to flash CyanogenMod
So the first thing is to root the phone I did that from here
http://forum.xda-developers.com/showthread.php?t=2695263
post #4 guy named galapagos has roottool.kitkat.zip attached. So I downloaded roottool.kitkat.zip unpacked it to "root" folder
folder tree:
--------root
--root.zip
--adb.exe
--AdbWinApi.dll
--AdbWinUsbApi.dll
--StartRoot.bat
and ran the StartRoot.bat that I found inside.
All it did was reboot the phone to stock recovery waited for me to click install from sideload and it than executed next command:
.\adb.exe sideload root.zip
the phone rebooted, and I installed rootchecker app to test if I had root. The test was positive. cool :laugh:
now I wanted to install CyanogenMod I downloaded the latest build from here http://download.cyanogenmod.org/?device=e980&type=
I renamed the file I downloaded to root.zip placed it in the folder where StartRoot.bat is (replacing the old root.zip) and ran StartRoot.bat once again.
the phone verified the root.zip and started to install it. :angel: In the middle of installation it aborted the installation and rebooted the phone. it will not boot to android system (I wonder why ) instead I am greated with LG security error after witch the phone turns itself off.
I have tried getting into download mode buy key combination= hold volume+ and volume - together and connect usb. It only starts charging.
when I press volume down+ home+power it takes me to factory hard reset. but the reset changes nothing...
do you have any ideas how I can unbrick my phone? Will USB jig work on LG phones?
Click to expand...
Click to collapse
why now ???

[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.

LG G4 H815 - Stuck on Bootloader State

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
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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 ?
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What version did you flash.......

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

Monkeypox95 said:
I flashed this img twrp-3.0.2-1-h815.img
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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.....
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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.
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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.
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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?
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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............
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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.
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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 !