[Q] Note 8 no way to flash a working stock rom - Upgrading, Modifying and Unlocking

Hello,
i have a note 8 with 64gb memory and originally wanted to run it with the ligthrom v50. I installed twrp and the rom, unfortunately celluar network didn't work after that. So i decided to go back to the stock rom.
I downloaded the latest fw via samfirm and wanted to flash it via odin. This worked too, but the phone only showed 16Gb memory, so I read that a wipe/factory reset would solve the problem. Unfortunately without success. When I reset the phone, it is always stuck in boot mode. If I then go to recovery I always see "dm-verity verification failed".
I tried to fix this error with flashing e.g. according to this instruction, but unfortunately without success.
i tried other tutorials, but nothing helped. as soon as i do a wipe/factory reset the phone won't work anymore...
Is my cell phone really gone now?

Related

[Q] Stuck in bootloop, tried (almost?) everything

The background story: Was having a lot of FC issues with Beanstalk 4.4, along with other things like battery life/signal that I was growing to be unhappy with and decided to flash one of the 4.3 ROMs with Note 3 features on the fly. I didn't have signal after doing so (didn't read all the comments so I do know this is all my fault) and thought that I would have needed to flash the 4.3 bootloader that was suggested in the OP since using the modems I had on hand did not help.
End result, phone was perpetually stuck in bootloop.
Symptoms: Doesn't go past the Samsung splash screen with the logo flashing. Even when plugging it in it's stuck on the empty battery with the loading wheel.
Attempted solutions:
I have tried the EFR attempt but could not get Kies to recognize my Note II in downloading mode. Kies is currently updated to the lastest 2.6.1.x.x.x
The emergency code option isn't viable since I don't have one(?)
Flashed the appropriate stock ROM (for Bell SGH-I317M) through Odin as it was recognized, but still cannot get past bootloop.
Tried firmware upgrade and initlization instead, PC cannot download firmware to device
Attempted to flash other ROMs both stock and whatnot through CWM. Doesn't seem like it'll take anymore AOSP mixed/based ROMs as they all fail?
With all of these attempts I have pulled out the battery for a little bit prior to actually performing the restoration.
Hopefully somebody can point out a mistake or something I need to do instead.
And as a side note, the Galaxy S2 is too damn small and Windows phones (Lumia 1020) kind of....suck.
Bump. Hopefully somebody can point something I missed.
Have you tried Odin to stock then wiping all user data/ factory reset?
bbrennan said:
Have you tried Odin to stock then wiping all user data/ factory reset?
Click to expand...
Click to collapse
Attempting to wipe anything other than cache in CWM gives me an error mounting.
If you Odin to stock it would have factory recovery on it, not cwm, Odin to factory then under stock recovery wipe data factory reset
bbrennan said:
If you Odin to stock it would have factory recovery on it, not cwm, Odin to factory then under stock recovery wipe data factory reset
Click to expand...
Click to collapse
You sir, deserve the rest of the day off with a pat on the back and a beer in hand. Many thanks!

[Q] N7100 stuck at boot screen after flashing stock 4.4.2

Hi all, hope somebody can rescue me!
I have an N7100. It's been running stock ROM 4.1.2 for ages (rooted). I've rooted and loaded ROMs on a fair few devices over the years, but typically by following step-by-step guides - I'm a noob to all intents and purposes.
Last night I decided to upgrade to 4.4.2.
I did it without performing a wipe first.
Backed up apps and settings using Titanium Backup Pro
Downloaded N7100XXUFNE1 from Sammobile (sammobile.com/firmwares/3/?download=32635)
Loaded it via Odin 3.9
It worked, in a fashion, maintaining most of my data and apps etc, but I couldn't get wifi to turn on and I kept getting error messages saying '[App X] could not be loaded'
I decided to bite the bullet and do a factory reset (by booting into recovery).
I still couldn't get wifi to work, but my bootloader had stayed at ME3, so I decided to apply the latest bootloader (ND3) as I read somewhere that this could be the issue (I wasn't overly concerned about Knox as the phone is almost 2 years old now anyway).
I applied it via ODIN again, except loading the file into the 'BL' section rather than the 'AP'.
Since doing that, it's stuck at the boot screen 'Samsung Galaxy Note II GT-N7100' and the only way to get out of it is to pull the battery.
I can got into 'Download Mode' but not into 'Recovery Mode'.
I have tried applying MJ5 bootloader.
I have tried reinstalling the whole stock again ROM again
I have tried applying Philz_Touch_6.07.9-n7100 recovery
All show as having completed successfully in Odin, but none of them changed anything - I'm still stuck at the boot screen
Does anybody have any ideas of what else I might try?
Thanks
Beardy
beardyweirdy said:
Hi all, hope somebody can rescue me!
I have an N7100. It's been running stock ROM 4.1.2 for ages (rooted). I've rooted and loaded ROMs on a fair few devices over the years, but typically by following step-by-step guides - I'm a noob to all intents and purposes.
Last night I decided to upgrade to 4.4.2.
I did it without performing a wipe first.
Backed up apps and settings using Titanium Backup Pro
Downloaded N7100XXUFNE1 from Sammobile (sammobile.com/firmwares/3/?download=32635)
Loaded it via Odin 3.9
It worked, in a fashion, maintaining most of my data and apps etc, but I couldn't get wifi to turn on and I kept getting error messages saying '[App X] could not be loaded'
I decided to bite the bullet and do a factory reset (by booting into recovery).
I still couldn't get wifi to work, but my bootloader had stayed at ME3, so I decided to apply the latest bootloader (ND3) as I read somewhere that this could be the issue (I wasn't overly concerned about Knox as the phone is almost 2 years old now anyway).
I applied it via ODIN again, except loading the file into the 'BL' section rather than the 'AP'.
Since doing that, it's stuck at the boot screen 'Samsung Galaxy Note II GT-N7100' and the only way to get out of it is to pull the battery.
I can got into 'Download Mode' but not into 'Recovery Mode'.
I have tried applying MJ5 bootloader.
I have tried reinstalling the whole stock again ROM again
I have tried applying Philz_Touch_6.07.9-n7100 recovery
All show as having completed successfully in Odin, but none of them changed anything - I'm still stuck at the boot screen
Does anybody have any ideas of what else I might try?
Thanks
Beardy
Click to expand...
Click to collapse
What happens when you try to reflash the stock 4.4.2 firmware via odin that u downloaded?
beardyweirdy said:
Hi all, hope somebody can rescue me!
I have an N7100. It's been running stock ROM 4.1.2 for ages (rooted). I've rooted and loaded ROMs on a fair few devices over the years, but typically by following step-by-step guides - I'm a noob to all intents and purposes.
Last night I decided to upgrade to 4.4.2.
I did it without performing a wipe first.
Backed up apps and settings using Titanium Backup Pro
Downloaded N7100XXUFNE1 from Sammobile (sammobile.com/firmwares/3/?download=32635)
Loaded it via Odin 3.9
It worked, in a fashion, maintaining most of my data and apps etc, but I couldn't get wifi to turn on and I kept getting error messages saying '[App X] could not be loaded'
I decided to bite the bullet and do a factory reset (by booting into recovery).
I still couldn't get wifi to work, but my bootloader had stayed at ME3, so I decided to apply the latest bootloader (ND3) as I read somewhere that this could be the issue (I wasn't overly concerned about Knox as the phone is almost 2 years old now anyway).
I applied it via ODIN again, except loading the file into the 'BL' section rather than the 'AP'.
Since doing that, it's stuck at the boot screen 'Samsung Galaxy Note II GT-N7100' and the only way to get out of it is to pull the battery.
I can got into 'Download Mode' but not into 'Recovery Mode'.
I have tried applying MJ5 bootloader.
I have tried reinstalling the whole stock again ROM again
I have tried applying Philz_Touch_6.07.9-n7100 recovery
All show as having completed successfully in Odin, but none of them changed anything - I'm still stuck at the boot screen
Does anybody have any ideas of what else I might try?
Thanks
Beardy
Click to expand...
Click to collapse
Have you tried flashing TWRP instead? This happened to me and got stuck on recovery boot, CWM and Philz Touch wonb't load. Flashed TWRP and worked like a charm.
I am having similar problem.
Tried to flash the TWRP Recovery from THIS via Odin.
Still phone isn't going past the Galaxy Note II logo.
Sidz4u said:
What happens when you try to reflash the stock 4.4.2 firmware via odin that u downloaded?
Click to expand...
Click to collapse
Thanks for the reply.
It processes OK and Odin says 'Pass!', but then it automatically restarts and gets stuck at the boot screen again. Still can't boot into recovery mode.
AliverMD said:
Have you tried flashing TWRP instead? This happened to me and got stuck on recovery boot, CWM and Philz Touch wonb't load. Flashed TWRP and worked like a charm.
Click to expand...
Click to collapse
Thanks for the suggestion. Just tried that, but unfortunately it just does the same thing ....
Man do this.....
Get older odin (personally my preferance nothing else)
Flash the latest stock rom that u have
It will say pass and the device will go into bootloop
Now remove battery any stick it in (just to stop bootloops)
Enter recovery (that shld be stock now)
And do a factory reset
If no recovery......get a custom one and do it
Then let the phone do its thing:good::good:
---------- Post added at 10:36 AM ---------- Previous post was at 10:32 AM ----------
If u have any wifi or other issues.....flash the new bootloader. ....with AP not the BL...and done....
Hope this helps......cheers:good:
devrog17 said:
Man do this.....
Get older odin (personally my preferance nothing else)
Flash the latest stock rom that u have
It will say pass and the device will go into bootloop
Now remove battery any stick it in (just to stop bootloops)
Enter recovery (that shld be stock now)
And do a factory reset
If no recovery......get a custom one and do it
Then let the phone do its thing:good::good:
---------- Post added at 10:36 AM ---------- Previous post was at 10:32 AM ----------
If u have any wifi or other issues.....flash the new bootloader. ....with AP not the BL...and done....
Hope this helps......cheers:good:
Click to expand...
Click to collapse
Thanks for the suggestion. I've tried doing just that (although not on an older version of Odin) and it hasn't helped, I can't get into recovery.
I will give flashing the Bootloader a go via the AP rather than BL when I get back from work tonight though. Cheers.
beardyweirdy said:
Thanks for the suggestion. I've tried doing just that (although not on an older version of Odin) and it hasn't helped, I can't get into recovery.
I will give flashing the Bootloader a go via the AP rather than BL when I get back from work tonight though. Cheers.
Click to expand...
Click to collapse
Yes try with older odin.......and also flashing bl via AP
Hope it helps......
DO HIT THAT THANKS BUTTON IF U FEEL I TRIED TO HELP U......
devrog17 said:
Yes try with older odin.......and also flashing bl via AP
Hope it helps......
DO HIT THAT THANKS BUTTON IF U FEEL I TRIED TO HELP U......
Click to expand...
Click to collapse
Just tried, but to no avail again. Thanks anyway. Anybody else got any suggestions as to what I might try? I'm starting to lose hope a bit here
Try to boot in recovery and do a factory reset
devrog17 said:
Try to boot in recovery and do a factory reset
Click to expand...
Click to collapse
Hi, I do appreciate you're only trying to help but, as explained numerous times in the thread, that's my whole problem.
In summary:
The phone gets stuck on the boot screen
I can't boot into recovery
I can only get into the odin download screen
Flashing a full stock rom doesn't change anything
Flashing Philz, TWRP or CW Recovery doesn't change anything
Reflashing the bootloader doesn't change anything
C
beardyweirdy said:
Hi, I do appreciate you're only trying to help but, as explained numerous times in the thread, that's my whole problem.
In summary:
The phone gets stuck on the boot screen
I can't boot into recovery
I can only get into the odin download screen
Flashing a full stock rom doesn't change anything
Flashing Philz, TWRP or CW Recovery doesn't change anything
Reflashing the bootloader doesn't change anything
Click to expand...
Click to collapse
Just to close this thread off, I've now paid to get the phone sorted at a local shop. Took them a while (think their first level support just tried all the things I'd already done), but their occasional staff member and all round guru managed to get it sorted. I don't know what he did as I didn't get the chance to speak to him. Cost me £30.

Bootloops After ODIN back to Stock Firmware

Hi guys,
I have the t-mobile s6 edge
After messing around with my device last night and this morning, I decided to go back to stock for a bit.
I have ODIN 3.10.6. I went into download mode on my phone. extracted the stock firmware from this thread: http://forum.xda-developers.com/galaxy-s6-edge/general/sm-g925f-s6-firmware-thread-t3078841
loaded the "G925TUVU1AOCG_G925TTMB1AOCG_G925TUVU1AOCG_HOME.tar.md5" file into the ap box for odin
connected my phone to computer, odin recognized it. hit start. ran successfully. rebooted, android guy came up briefly and said installing system update, then it changed to "Erasing..." then it rebooted again
now it's just bootloops forever after the tmobile screen. I can boot to recovery and it says installing system update each time I boot to recovery, but selecting reboot system there shows a no command error. force the phone to power off... power on again to bootloops.
tried to go into download mode again and reflash everything through odin, same issue!
I started last night by rooting using chainfire, then installing TWRPv2, then I flashed the 5.1.1 ROM available from @eousphoros (sorry for the tag, just thought you might want to be apprised of the issues in getting back to stock after using the 5.1.1 ROM).
with 5.1.1 loaded, smart switch didn't recognize the phone for a reset so I decided to go with the ODIN method and now i'm in bootloop city
any help would be greatly appreciated
kswa1987 said:
Hi guys,
I have the t-mobile s6 edge
After messing around with my device last night and this morning, I decided to go back to stock for a bit.
I have ODIN 3.10.6. I went into download mode on my phone. extracted the stock firmware from this thread: http://forum.xda-developers.com/galaxy-s6-edge/general/sm-g925f-s6-firmware-thread-t3078841
loaded the "G925TUVU1AOCG_G925TTMB1AOCG_G925TUVU1AOCG_HOME.tar.md5" file into the ap box for odin
connected my phone to computer, odin recognized it. hit start. ran successfully. rebooted, android guy came up briefly and said installing system update, then it changed to "Erasing..." then it rebooted again
now it's just bootloops forever after the tmobile screen. I can boot to recovery and it says installing system update each time I boot to recovery, but selecting reboot system there shows a no command error. force the phone to power off... power on again to bootloops.
tried to go into download mode again and reflash everything through odin, same issue!
I started last night by rooting using chainfire, then installing TWRPv2, then I flashed the 5.1.1 ROM available from @eousphoros (sorry for the tag, just thought you might want to be apprised of the issues in getting back to stock after using the 5.1.1 ROM).
with 5.1.1 loaded, smart switch didn't recognize the phone for a reset so I decided to go with the ODIN method and now i'm in bootloop city
any help would be greatly appreciated
Click to expand...
Click to collapse
You probably need to do a factory reset
In the future you should make a full backup before installing a rom
kswa1987 said:
Hi guys,
I have the t-mobile s6 edge
After messing around with my device last night and this morning, I decided to go back to stock for a bit.
I have ODIN 3.10.6. I went into download mode on my phone. extracted the stock firmware from this thread: http://forum.xda-developers.com/galaxy-s6-edge/general/sm-g925f-s6-firmware-thread-t3078841
loaded the "G925TUVU1AOCG_G925TTMB1AOCG_G925TUVU1AOCG_HOME.tar.md5" file into the ap box for odin
connected my phone to computer, odin recognized it. hit start. ran successfully. rebooted, android guy came up briefly and said installing system update, then it changed to "Erasing..." then it rebooted again
now it's just bootloops forever after the tmobile screen. I can boot to recovery and it says installing system update each time I boot to recovery, but selecting reboot system there shows a no command error. force the phone to power off... power on again to bootloops.
tried to go into download mode again and reflash everything through odin, same issue!
I started last night by rooting using chainfire, then installing TWRPv2, then I flashed the 5.1.1 ROM available from @eousphoros (sorry for the tag, just thought you might want to be apprised of the issues in getting back to stock after using the 5.1.1 ROM).
with 5.1.1 loaded, smart switch didn't recognize the phone for a reset so I decided to go with the ODIN method and now i'm in bootloop city
any help would be greatly appreciated
Click to expand...
Click to collapse
AHH!! Sorry to have made this post... here's what I did to get it actually boot:
reflahed the stock firmware through odin again, tried to reboot, it failed, obviously. rebooted to recovery, factory reset in recovery, power down option in recovery, then turned the phone on again and it magically worked!
hopefully this post will help someone who encountered the same issue
eousphoros said:
You probably need to do a factory reset
In the future you should make a full backup before installing a rom
Click to expand...
Click to collapse
thank you so much for the quick reply, I ended up figuring out the solution while you were typing. sorry to pull you away from other tasks. I have several backups saved to my PC but thank you for the reminder!! :laugh::laugh:
kswa1987 said:
AHH!! Sorry to have made this post... here's what I did to get it actually boot:
reflahed the stock firmware through odin again, tried to reboot, it failed, obviously. rebooted to recovery, factory reset in recovery, power down option in recovery, then turned the phone on again and it magically worked!
hopefully this post will help someone who encountered the same issue
Click to expand...
Click to collapse
I had the same excat same thing happen when flashing this via Odin. I didnt need to Odin stock twice though . I just booted stock recovery and did a factory reset. After that I went ahead an powered down and rebooted . All good now
How long did you have to wait in the stock recovery to get past the "installing system update" screen? Mine just sits there and I'm unable to view other options in recovery.
EDIT for noobs (like me): wait 30 seconds on the "installing system update" screen.
I'm still stuck in boot loop
Im in the same exact situation , but I'm still stuck in boot loop. I followed your restore instructions and nothing. Please help.
Creel711 said:
Im in the same exact situation , but I'm still stuck in boot loop. I followed your restore instructions and nothing. Please help.
Click to expand...
Click to collapse
Looks here, may apply to your case. http://forum.xda-developers.com/showthread.php?p=63226466
Pp.
I initially used odin to flash OI1 update, after a rom I was using caused problems and I got bootloop. It changed bootloader value to b:3 and I'm unable to downgrade now so I used smart switch which didn't recognize device so used emergency recovery and still bootloop. I have factory reset and wipe cache multiple times along with adb side load and individual flashes of bootloader, modem, kernel, flashed custom kernel and twrp to access fix permissions and to mount partitions with advanced wipe etc and still wont boot past logo. Also during one fix attempt phone said can't mount system.. Idk I'm not understanding where the problem is .everything says successful but I'm still in bootloop. Please help. I've spent hours everyday for the past week searching & trying different things that seem might help so open to any suggestions.
Problem with Samsung Galaxy S4 Mini GT-I9195
Hi everyone
I'm new to the whole ROM flashing and using Odin. I had a bootloop problem and recovery mode showed all the options but has a green android man laying down with red icon above him and No Command below the android man. Tried the factory wipe and cache wipe but it gives some red writing with the word failed in the coding and the word error under the android man. Tried to flash a stock ROM from sammobile using Odin. Odin gives a pass but the same problems persist. Can someone please help?
any solution, i have this problem to? only bootloop, nothing else. Updatet bootloader with 4up
kswa1987 said:
Hi guys,
I have the t-mobile s6 edge
After messing around with my device last night and this morning, I decided to go back to stock for a bit.
I have ODIN 3.10.6. I went into download mode on my phone. extracted the stock firmware from this thread: http://forum.xda-developers.com/galaxy-s6-edge/general/sm-g925f-s6-firmware-thread-t3078841
loaded the "G925TUVU1AOCG_G925TTMB1AOCG_G925TUVU1AOCG_HOME.tar.md5" file into the ap box for odin
connected my phone to computer, odin recognized it. hit start. ran successfully. rebooted, android guy came up briefly and said installing system update, then it changed to "Erasing..." then it rebooted again
now it's just bootloops forever after the tmobile screen. I can boot to recovery and it says installing system update each time I boot to recovery, but selecting reboot system there shows a no command error. force the phone to power off... power on again to bootloops.
tried to go into download mode again and reflash everything through odin, same issue!
I started last night by rooting using chainfire, then installing TWRPv2, then I flashed the 5.1.1 ROM available from @eousphoros (sorry for the tag, just thought you might want to be apprised of the issues in getting back to stock after using the 5.1.1 ROM).
with 5.1.1 loaded, smart switch didn't recognize the phone for a reset so I decided to go with the ODIN method and now i'm in bootloop city
any help would be greatly appreciated
Click to expand...
Click to collapse
had the same issue ... did a factory wipe...(had lineage os 14 installed with gapps 7.1.1) flashed stock rom using odin(success) . stuck in bootloop(samsung logo fades in and out) pleaase help (sm-g900H)
Very usefull post, same issue, solved trough recovery->wipedata/factoryreset. Thanks!!!!
my s6 was freezing and restarting again and again, I reinstalled the firmware for odin and then it didn't encounter any problem for a whole day but now i have the same problem again - freezing and restarting
any help would be appreciated
I am already done with factory reset and wiping cache partition but still nothing turnout to be helpful
Hi Please help me.
I did everything that mentioned but no succes at all. Any new suggestion?
Btw my phone passing ODIN and stuck in "installing system updates then erasing"
hello
i need downgred g925t frome androide 7 to 6 or 5.1.1
can anyone help me
im flashed phone whit dis frimwer from anroide 7 G925TUVS6FRC1_G925TTMB6FRC1_TMB
im dawnloaded this frimwer 4Files-G925TTMB3EPD1-6.0.1-By-NoLoGiG but not work or not flashed have error

Accidentally Soft Bricked Tab S 8.4; tried firmware and PIT flash, no good.

I was given a Galaxy Tab S by a relative who works in a cell phone store. It was a demo device, and it had demo mode enabled. I initially attempted to reboot into recovery and do a wipe from there, but an error came up informing me that "MDM" had blocked this option (I assume MDM to mean manufacturer demo mode). The tablet was still working at this point, so I rebooted and got the exact model number, SM-T700. I googled for a bit and found the recommendation to be to reinstall the firmware. I've done a lot of ODIN flashes before, so I downloaded the correct firmware from the official firmware post here on XDA, rebooted to download mode, and flashed it without issues.
After 30 minutes, the tablet still just showed the Samsung boot screen. I did a hard reboot with volume up + power, and left it. After another 30 minutes, it still didn't show anything. I rebooted to download mode and tried flashing again. Same result. I rebooted to recovery and tried to wipe the device from there. MDM block.
After more searching, I decided to use the PIT file and the firmware file in ODIN. I've had to use PIT files a couple times before, so I was very careful in checking to ensure I had the correct one. I am very confident I did. I flashed that, and still the tablet would not boot.
I then decided to install TWRP and see if I could wipe from there. TWRP gave me some useful information: it returned that it could not mount any of the partitions on the device. 'could not mount /system', 'could not mount /data', etc.
I've done a lot of googling and reading since then, but I can't seem to find anybody else with the result. The closest thing I can find is a similar situation on some ASUS tablets, but the solution would definitely not work here. The only other thing I can find is people recommending to flash the PIT file, which I have no tried a second time and still does not work.
Does anybody have any suggestions? I don't know what else to do.
You didn't need the pit file, so forget about that.
The first thing you should have done is disable the reactivation lock.
Then flash the stock firmware, after that immediately boot into recovery and factory reset.
I would reflash the stock KitKat firmware and immediately boot into recovery after the flash and wipe data/reset
Ensure that during the flashing process there are no errors.
Updating, I got it figured out.
I tried 3 different firmwares, all of which flashed with no errors but did not work. 2 were KitKat, one was lollipop. I tried a fourth firmware (a Korean one from sammobile on lollipop) and it flashed exactly the same as all of the others, but this time it worked. I have no idea what was different with this firmware compared to the other three, but it worked, and I'm happy.
Activation lock cannot be disabled via the demo mode software on Samsung devices (unless there is a method of doing so I am unaware of), so that wasn't an option. I was unable to get the stock recovery to allow a factory reset. Teamwin recovery did allow a factory reset.
Either way, its working now.

[Q] LG G4 H811 Stuck in Recovery (TWRP) Loop

I was running the latest version of TWRP and a rooted version of the LG G6 port. Everything was stable and worked fine. So I was ready to give it back to its owner who I had modded it for. I went into the settings menu of the phone and did a standard factory reset to remove my account that was logged in so I could test the phone out before giving it to the owner. well when it finished resetting and rebooted, its been stuck in a boot loop ever since.
Tried just clearing both Dalvik Cache and Cache, to no avail. Tried Reflashing the rom and starting over. Still nothing. Tried flashing a different rom. Still nothing.
So what else can I try? and also if its the only thing I can do, rest it all the way back to stock factory everything. How do I do that on this phone. What program do I need and what files. and whats the steps to complete the process.
Thank you in advance for all help that is given
i factory reset in twrp and turned on developers options after first boot then reflashed twrp i always forget backup lol or delete it or use kdz you flashed before anyway i can help i will if you still need
if you have tried to flash the same custom rom or another is still not working, flashes with the program "lg up", you will need a kdz file,and the corresponding drivers. if with that you can not watch this tutorial before doing anything.
if you have a backup made with twrp, it flashes again.
https://forum.xda-developers.com/g4/help/unbrick-lg-g4-brick-hs-usb-qdloader-t3542785
during this process you will have to disassemble the back of the phone, (plastic) you do not need to remove the motherboard completely from the phone, anyway if you can enter download mode try with lg up tool.
if you need help around here we are.
Well now in the process of trying to fix it. The phone bricked and will no longer turn on at all. Is there anyway to fix this ?
Silicon Knight said:
Well now in the process of trying to fix it. The phone bricked and will no longer turn on at all. Is there anyway to fix this ?
Click to expand...
Click to collapse
Can you get into download mode?
Also, it's possible you have been hit by the bootloop

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