Develop Bugs

LG G4 bootloop.... Need expert help... Ready to pay the price

Hello,
I had been using a H815T, locked bootloader, running Seven HD rom v6.1 for more than 2 months flawlessly. Suddenly yesterday my phone was in charge and it restarted and went into bootloop. Since I tried many things and I went to some local technicians as well as one LG engineer, but all failed to gimme any solution. And I don't have any warrenty, I couldn't ask for a replacement for anyone.
So here's what I tried:
1. Flashing international KDZ
2. Flashing default KDZ
3. Formatting from recovery mode
4. Changing battery
Here's what works:
1. Download mode
2. Recovery mode
So I am ready to pay if anyone gimme a solution out of this. Any help will be appreciated as I am in real trouble coz I cannot afford a new phone now.
With thanks

nipun1110 said:
Hello,
I had been using a H815T, locked bootloader, running Seven HD rom v6.1 for more than 2 months flawlessly. Suddenly yesterday my phone was in charge and it restarted and went into bootloop. Since I tried many things and I went to some local technicians as well as one LG engineer, but all failed to gimme any solution. And I don't have any warrenty, I couldn't ask for a replacement for anyone.
So here's what I tried:
1. Flashing international KDZ
2. Flashing default KDZ
3. Formatting from recovery mode
4. Changing battery
Here's what works:
1. Download mode
2. Recovery mode
So I am ready to pay if anyone gimme a solution out of this. Any help will be appreciated as I am in real trouble coz I cannot afford a new phone now.
With thanks
Click to expand...
Click to collapse
that block at 9% and told you to remove batery unplug phone etc etc?

i have same problem and no 2nd phone here -.- we need a Updated LG Flash Tool 2014 to flash the 20A.kdz

fr33kiLL said:
i have same problem and no 2nd phone here -.- we need a Updated LG Flash Tool 2014 to flash the 20A.kdz
Click to expand...
Click to collapse
unfortunaly we can wait a long time maybe ...

nipun1110 said:
Hello,
I had been using a H815T, locked bootloader, running Seven HD rom v6.1 for more than 2 months flawlessly. Suddenly yesterday my phone was in charge and it restarted and went into bootloop. Since I tried many things and I went to some local technicians as well as one LG engineer, but all failed to gimme any solution. And I don't have any warrenty, I couldn't ask for a replacement for anyone.
So here's what I tried:
1. Flashing international KDZ
2. Flashing default KDZ
3. Formatting from recovery mode
4. Changing battery
Here's what works:
1. Download mode
2. Recovery mode
So I am ready to pay if anyone gimme a solution out of this. Any help will be appreciated as I am in real trouble coz I cannot afford a new phone now.
With thanks
Click to expand...
Click to collapse
stock recovery or twrp..

Google~Android said:
stock recovery or twrp..
Click to expand...
Click to collapse
we have not access at twrp anymore .... and kdz method doesnt work . phone recognized in all lg software ... support tool 9% and issue

shudoha said:
we have not access at twrp anymore .... and kdz method doesnt work . phone recognized in all lg software ... support tool 9% and issue
Click to expand...
Click to collapse
did you have an unlocked bl or not?

Google~Android said:
did you have an unlocked bl or not?
Click to expand...
Click to collapse
of course for flash first twrp and after flash all autoprime files and after this .. impossible to have access at twrp . hard reset work . but nothing happens boot loop kdz for rollback doesnt work too . still blocked at 9% on the tool and 0 on my phone and ask me to remove the battery etc etc i did that too much time . but for nothing and the worst . bridge .. support tool recognize my phone like H815 then no driver problem

i have unlocked BL but didnt have access to ADB and Fastboot(idk why) and got stock recovery after flashing so no chance to go in TWRP

Does the phone freeze at random times? Like no matter where its at, sometimes it boots to the operating system?

Hardware
It's starting to sound more and more like a MEM BLOCK corruption..

Have you tried this: Firmware to Stock with kdz and tot?

Noo

shudoha said:
that block at 9% and told you to remove batery unplug phone etc etc?
Click to expand...
Click to collapse
No..nothing like that

mr turtle droid said:
It's starting to sound more and more like a MEM BLOCK corruption..
Click to expand...
Click to collapse
What's that and what's the remedy? And usually what causes it?

martinsavvy said:
Does the phone freeze at random times? Like no matter where its at, sometimes it boots to the operating system?
Click to expand...
Click to collapse
To me it used to happen sometimes while charging. I had to manually switch off the screen and when i switched on the screen, it became normal for a while. I thought it was due to heavy xposed customizations.

michael08071984 said:
Have you tried this: Firmware to Stock with kdz and tot?
Click to expand...
Click to collapse
That's the KDZ method. Yah I tried it as I mentioned.

michael08071984 said:
Have you tried this: Firmware to Stock with kdz and tot?
Click to expand...
Click to collapse
tested but like i told you .... blocked at 9% and remove battery unplug etc etc and nothing happend

Try this:
copy all zip files you need to reflash (10D or similar) to a memcard
Also download latest twrp and copy it to the directory where you have adb.exe
Open a Command prompt on your PC (where adb is located) and powerup the phone,
open up the Device Manager on your PC to see when the adb device is there,
in the moment where you see the adb device fire up the comand:
adb reboot bootloader
if that works enter the comand:
fastboot boot twrp-2.8.7.0-h815.img
this will boot directly into Twrp without flashing twrp and you can try things from twrp
I hope this will help here, helped me with the phone from a friend of me who had a similar problem.

fire3d said:
Try this:
copy all zip files you need to reflash (10D or similar) to a memcard
Also download latest twrp and copy it to the directory where you have adb.exe
Open a Command prompt on your PC (where adb is located) and powerup the phone,
open up the Device Manager on your PC to see when the adb device is there,
in the moment where you see the adb device fire up the comand:
adb reboot bootloader
if that works enter the comand:
fastboot boot twrp-2.8.7.0-h815.img
this will boot directly into Twrp without flashing twrp and you can try things from twrp
I hope this will help here, helped me with the phone from a friend of me who had a similar problem.
Click to expand...
Click to collapse
problem boot loop when i open my phone even with hard reset that change nothing and adb said : device not found when all program like lg support or bridge recognize my phone like h815 ... then not solution

Bricked lg g3 need help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

so i wanted to flash fulmics rom on my brand new lg g3 (p.s my old one wouldnt charge) but when i flashed my d852 bell firmware on it via LGUP my went back from getting a drink and my lg g3 was stuck on an android with a thing in its chest spinning and its just stuck there i tried all programs even with a bell marshmallow kdz and it says (lg flash tool and LGUP tot method) communication fail with device and on lg flash tool 2014 kdz method it just fails and i did confirm that nothing was wrong with my hardware and software and is there an alternative my goal is to flash twrp with download mode, wipe the system and flash a rom but how? i also dont want to take it back or take it to a shop i want to do this all on my own and i need your guys help. god bless you if you help me fix this. thanks
-moreogthanu p.s its a very old name

does anything show up in device manager when you plug it in?

yes its hows up lgeandroid net usb something... the normal stuff

moreogthanu said:
yes its hows up lgeandroid net usb something... the normal stuff
Click to expand...
Click to collapse
i meant LGE mobile usb serial port (com7) and in portable devices its says LGE android MTP device and its has a yellow trangle

so does anything show up when you turn it on? how far does it get in booting? it goes to DL mode everytime? and that's what is in device manager in DL mode?

paujmos said:
so does anything show up when you turn it on? how far does it get in booting? it goes to DL mode everytime? and that's what is in device manager in DL mode?
Click to expand...
Click to collapse
it boots into dl mode but i cant flash firmware yesterday i recorded it. it boots to lg logo and after 29 seconds it boot to the android guy i did find something in yellow text but it flickers and that says. in short
E: failed to mount /cache (no such file or directory) then can't mount /cache/recovery/log
can't open /cache/recovery/log
and it repeats that text 3 times from what i saw

did you install twrp? i would check your drivers or the cable for the communication failure in dl mode

paujmos said:
did you install twrp? i would check your drivers or the cable for the communication failure in dl mode
Click to expand...
Click to collapse
My goal is to try and install TWRP my phone fully stock I checked everything even my charging port. I'm using the lg cable... My main goals are to get this fixed before March 3 and all I need is an alternative. Get TWRP or return back to stock

at least give me a script to boot to stock android recovery without adb. cause obviously i cant use adb and i hope anybody reading this can remember that with lg flash tool 2014 kdz method it goes to 4 and stops unless you guys find fix to that. all i need is to get this thing fixed before march 3rd. so if you guys help me find any kind of fix this is all i need
here is info but my phone
model: lg-d852 (don't really need it though)
status: stock unrooted device and has never booted into the system
android version: 4.4.2 kitkat
main problem that needs to be fixed: it cant mount cache cause apparently there is no file or directory according to my phone
that's it. if you guys need anymore info about my phone let me know (except imei or serial number cause that's all private stuff) thanks
-moreogthanu it's a very old name

use the tot method. never seen it not work assuming youre in download mode and have working drivers/cable

paujmos said:
use the tot method. never seen it not work assuming youre in download mode and have working drivers/cable
Click to expand...
Click to collapse
I used every method

then you must force it into the 9008 mode using the following guide. I would check the dll you are using, drivers, or cable first through. I would be EXTREMELY SUPRISED of a g3 in DL mode that is non-responsive.
https://forum.xda-developers.com/verizon-lg-g3/general/how-to-hardbrick-guide-using-test-t3276928

paujmos said:
use the tot method. never seen it not work assuming youre in download mode and have working drivers/cable
Click to expand...
Click to collapse
girlfriend took my phone somewhere to fix it if she comes back with no results i'll update you

moreogthanu said:
girlfriend took my phone somewhere to fix it if she comes back with no results i'll update you
Click to expand...
Click to collapse
i'm surprised that my lg g3 in download mode with the correct dll, tot, kdz. every single program with a fully working charging port and an lg cable is that unresponsive. although at one point the arrows in download mode started spinning an then it stopped and on the monitor it said on lg flash tool (tot method). CAUTION: Primary gpt has invalid value there must be something blocking the connection
oh and my phone is still getting fixed soooooooooo no updates just yet. but like i said if there are no results i'll update you

Mi5S bootloop after flash to 8.2.4.0MAGCNDL China Stable

Hello,
I tried to flash my phone from global 8.0.3.0 stable to 8.2.4.0MAGCNDL China Stable. Miflash said flashing was successfull, but then I started my phone and was on a bootloop.
I cannot access edl mode via deep flash cable anymore, it´s just loading. My phone isn´t unlocked that´s why i can´t flash over fastboot. I already tried to the recover mode and downloaded a chinese version of Mi Pc Suite. It detects my device but when I try to recover it switches for like 3 secs to the right screen but then immediately switchs back to the first screen (connect device).
One thing i´ve noticed is there is an option to choose a xiaomi ota file, what is that, because I can´t find anything.
Is there any hope for my phone?

Not good, you shouldent even try to flash china stable(you can but why). so, i think you should enter EDL with testpoints, or you can try do hard reset, maybe this will work.

use this method and then flash your mi5s with stable global.
http://en.miui.com/thread-310325-1-1.html

Download Mi PC suite china version then enter recovery mode and connect the phone to pc,let it make the update and your done.

mezutelni said:
Not good, you shouldent even try to flash china stable(you can but why). so, i think you should enter EDL with testpoints, or you can try do hard reset, maybe this will work.
Click to expand...
Click to collapse
Thanks for your reply, how can I hard reset my device? And I watched a yt video for tespoints , is it the same procedure as with the mi5 ?
hzare2611 said:
use this method and then flash your mi5s with stable global.
Click to expand...
Click to collapse
I got a Edl cable, but I can´t get into edl.
XMoDuLeSx said:
Download Mi PC suite china version then enter recovery mode and connect the phone to pc,let it make the update and your done.
Click to expand...
Click to collapse
Not working, it just stops immediatly the process, if I press recover

Then u need to connect the phone via USB 2 not 3 and install the correct driver's. The phone must be detected Android adb interface

XMoDuLeSx said:
Then u need to connect the phone via USB 2 not 3 and install the correct driver's. The phone must be detected Android adb interface
Click to expand...
Click to collapse
I´ve installed all drivers and it´s connected to a usb 2 port. Phone is in Device Manager under "Kedacom USB Device/Android ADB Interface"

if you cannat connect the phone as edl,you should give it to mobile repaire center and they fix it with boot boxes for you.

Thanks for all your help guys, I finally recovered my phone and I´m on Lineage OS now.

LG G7 ThinQ T mobile hard brick

Hi guys!
I tried to put the android 10 korean beta on my LG G7 ThinQ g710TM T-Mobile, and now it doesn't turn on, the laptop recognizes it as QUALCOMM 9008 MODE I just need to know if its trash already or there's a way that can unbrick the phone (really stupid I know)
Thank you in advance!

If the phone wasn't a T-Mobile:
May be able to flash v35.eng img onto the phone's abl_a partition (make sure this is backed up), then use fastboot commands to copy over the laf_a/_b files of the stock img. Then use download mode to revert back to Android 8/oreo.
May need to use, fastboot boot laf.img, to get onto download mode, as suggested here.

It was a t mobile damn never go for a t mobile again REALLY
paxar331 said:
If the phone wasn't a T-Mobile:
May be able to flash v35.eng img onto the phone's abl_a partition (make sure this is backed up), then use fastboot commands to copy over the laf_a/_b files of the stock img. Then use download mode to revert back to Android 8/oreo.
May need to use, fastboot boot laf.img, to get onto download mode, as suggested here.
Click to expand...
Click to collapse
It was a t mobile damn never go for a t mobile again REALLY

Pocketjam347 said:
It was a t mobile damn never go for a t mobile again REALLY
Click to expand...
Click to collapse
You can try my method to fix it?
https://forum.xda-developers.com/lg...to-recover-hardbrick-9008-mode-boxes-t4052841
I

I don't understand one part
Awesomeslayerg said:
You can try my method to fix it?
https://forum.xda-developers.com/lg...to-recover-hardbrick-9008-mode-boxes-t4052841
I
Click to expand...
Click to collapse
I tried this method 2 days ago but for some reason when I try STEP 7: It says "Extracting kdz to ..." so I tried to wait a WHILE but after 4 hours of wait nothing happened so I was unable to do the next steps
Does it matter if the Phyton says that it was the end of its life?
Thank you so much for your post tho I believe you helped other people

Don't throw it away, I think there's a fix with QFIL.

I'm having a similar problem, but in my case I managed to accidentally erase laf_b from QFIL and this has corrupted my GPT. Now the QFIL partitioner can't see my partitions. Can you help? I may need a flat pack or something? I'm stuck in 9008 mode. The bootloader was unlocked but I couldn't get into fastboot to install TWRP and Lineage OS, so I ended up trying to erase laf_a and laf_b like it says to do in the V40 Qfil guide. Big mistake. Qfil and windows both recognize it as a 9008 device on Com3, but can't access the partitions.

I got the phone from a friend and i'm in the same position. The method from Awesomeslayerg just gives me sahara error

THE KHAMELEON said:
I got the phone from a friend and i'm in the same position. The method from Awesomeslayerg just gives me sahara error
Click to expand...
Click to collapse
See the FAQ in that guide.
Restart edl when connected to qfil or try different USB port or different PC.

lefttobleed said:
See the FAQ in that guide.
Restart edl when connected to qfil or try different USB port or different PC.
Click to expand...
Click to collapse
I don't have another PC to try it on. I been trying other ports and nothing. As I use my tweezers to put the phone in EDL I press download and still the error.
I don't know if this phone is T-Mobile or not. The IMEI shows T-Mobile but inside the phone shows numbers for Verizon

THE KHAMELEON said:
I don't have another PC to try it on. I been trying other ports and nothing. As I use my tweezers to put the phone in EDL I press download and still the error.
I don't know if this phone is T-Mobile or not. The IMEI shows T-Mobile but inside the phone shows numbers for Verizon
Click to expand...
Click to collapse
Not sure what's wrong with your phone...
Once I got out of this error by quickly pressing download when phone enters edl. Need to be fast.
Try that.

lefttobleed said:
Not sure what's wrong with your phone...
Once I got out of this error by quickly pressing download when phone enters edl. Need to be fast.
Try that.
Click to expand...
Click to collapse
To be honest I think it could be me just having the files in the wrong place or something else I'm doing wrong. All I get is Sahara error

Pocketjam347 said:
Hi guys!
I tried to put the android 10 korean beta on my LG G7 ThinQ g710TM T-Mobile, and now it doesn't turn on, the laptop recognizes it as QUALCOMM 9008 MODE I just need to know if its trash already or there's a way that can unbrick the phone (really stupid I know)
Thank you in advance!
Click to expand...
Click to collapse
Same problem with my phone.
I also try these things.
If you solved that problem then please share with me.

LG K10 2017 m250n stuck on the LG Logo

My Lg just froze and rebootet into the normal boot screen where it just stays
I tried to factory reset it but it just says erase for a short moment and goes back to Lg Logo
I tried Lgup with a Stock rom for the LG it finishes everything but just goes into Lg logo again
Any Help??

Leon200318 said:
My Lg just froze and rebootet into the normal boot screen where it just stays
I tried to factory reset it but it just says erase for a short moment and goes back to Lg Logo
I tried Lgup with a Stock rom for the LG it finishes everything but just goes into Lg logo again
Any Help??
Click to expand...
Click to collapse
Anyone with the same problem or a fix?

Leon200318 said:
Anyone with the same problem or a fix?
Click to expand...
Click to collapse
You have either bricked the phone or its not the correct rom,
Try a different rom, Maybe you can restore it with TWRP if you installed it, Or try download mode.

Eevvaann6 said:
You have either bricked the phone or its not the correct rom,
Try a different rom, Maybe you can restore it with TWRP if you installed it, Or try download mode.
Click to expand...
Click to collapse
The Rom is from the official Lg site tried 2 different
I dont have a recovery cause i cant get into fastboot neither recovery mode
Just lg logo mode and download mode/firmware update mode.
I go try some other roms

Leon200318 said:
The Rom is from the official Lg site tried 2 different
I dont have a recovery cause i cant get into fastboot neither recovery mode
Just lg logo mode and download mode/firmware update mode.
I go try some other roms
Click to expand...
Click to collapse
Make sure its for the correct model, I have a LG K10 the firmware is on the LG site but I have a At&t model which doesn't have official firmware from the sites. To get into android recovery which might help see your phone is bricked install ADB and Fastboot and run "adb reboot recovery" Also some LG phones don't have Fastboot like the At&t of the LG K10 Which I have. Hope you can get it to work
---------- Post added at 04:02 AM ---------- Previous post was at 03:58 AM ----------
Also try Safe mode, you could try it maybe you can get into it, so if that is the case, its probably something with what you did or how you flashed, if you still can't get it to work maybe wrong firmware.

Eevvaann6 said:
Make sure its for the correct model, I have a LG K10 the firmware is on the LG site but I have a At&t model which doesn't have official firmware from the sites. To get into android recovery which might help see your phone is bricked install ADB and Fastboot and run "adb reboot recovery" Also some LG phones don't have Fastboot like the At&t of the LG K10 Which I have. Hope you can get it to work
---------- Post added at 04:02 AM ---------- Previous post was at 03:58 AM ----------
Also try Safe mode, you could try it maybe you can get into it, so if that is the case, its probably something with what you did or how you flashed, if you still can't get it to work maybe wrong firmware.
Click to expand...
Click to collapse
Adb doesnt find the phone i only can get into download mode and there it doesnt get recognized
My phone hasnt got fastboot too
I tried many firmwares now, neither of them work i tried to do it with lg bridge and it doesnt work either all of the firmwares where for my lg k10 m250n
Is there another way to get into recovery
Bit more information:
When i try to start it in safe mode it shows lg logo goes for a short while to a screen where it shows "erasing" then just goes to lg logo again.
And again another thing: the phone behaves the same if I flash the wrong rom it does the exact same.

Leon200318 said:
Adb doesnt find the phone i only can get into download mode and there it doesnt get recognized
My phone hasnt got fastboot too
I tried many firmwares now, neither of them work i tried to do it with lg bridge and it doesnt work either all of the firmwares where for my lg k10 m250n
Is there another way to get into recovery
Bit more information:
When i try to start it in safe mode it shows lg logo goes for a short while to a screen where it shows "erasing" then just goes to lg logo again.
And again another thing: the phone behaves the same if I flash the wrong rom it does the exact same.
Click to expand...
Click to collapse
How do you try to start that safe mode? What buttons you used?
>Is there another way to get into recovery
Go into download mode and using Send_Command
or lglaf.py give it this command: multi_init
There push Vol+ and then Power once.

CXZa said:
How do you try to start that safe mode? What buttons you used?
>Is there another way to get into recovery
Go into download mode and using Send_Command
or lglaf.py give it this command: multi_init
There push Vol+ and then Power once.
Click to expand...
Click to collapse
Wow didn't thought someone reply to this after the long time I just say thx for response even if it's not workin
I don't even know which buttons I used for safe mode but I can look after it later
I'll give it a try with the python script when I get to my pc tomorrow
Will be Posting the results directly after
Also 2 more questions
What does the recovery look like on the LG k10
And can I flash custom recovery zips with that?

Leon200318 said:
Wow didn't thought someone reply to this after the long time I just say thx for response even if it's not workin
I don't even know which buttons I used for safe mode but I can look after it later
I'll give it a try with the python script when I get to my pc tomorrow
Will be Posting the results directly after
Click to expand...
Click to collapse
The Send_Command might be easier. With that py you have mod it a bit and use an older version drivers. Was it 4.04 or something, then it works.
If you're using Windows that is... Then there is Steadfasterx's and some other lglaf versions that might work...
With send_command you just find the the COM port the diagnose or whatever uses, like:
reg query HKLM\hardware\devicemap\SERIALCOMM
And then: Send_Command.exe \\.\COM[com port number]
Send_Command.exe \\.\COM22
Then you can give that command, and by default it will boot to the recovery.
In recovery there is that dead android guy waiting, that's why those buttons.
Custom zips: No way. Now keys to sign them... and the bootloader should be
unlocked to do any changes...

CXZa said:
The Send_Command might be easier. With that py you have mod it a bit and use an older version drivers. Was it 4.04 or something, then it works.
If you're using Windows that is... Then there is Steadfasterx's and some other lglaf versions that might work...
With send_command you just find the the COM port the diagnose or whatever uses, like:
reg query HKLM\hardware\devicemap\SERIALCOMM
And then: Send_Command.exe \\.\COM[com port number]
Send_Command.exe \\.\COM22
Then you can give that command, and by default it will boot to the recovery.
In recovery there is that dead android guy waiting, that's why those buttons.
Custom zips: No way. Now keys to sign them... and the bootloader should be
unlocked to do any changes...
Click to expand...
Click to collapse
I have access to both Windows and Ubuntu
I Will try what you said and just will look if it works
What are my options to do when I'm in recovery mode?

Leon200318 said:
What are my options to do when I'm in recovery mode?
Click to expand...
Click to collapse
Basically the factory reset. Fastboot/bootloader doesn't work.
>There push Vol+ and then Power once.
edit: Actually, it is other way around. Push Power and then Vol+ once.

CXZa said:
Basically the factory reset. Fastboot/bootloader doesn't work.
>There push Vol+ and then Power once.
Actually, try with Vol- if Vol+ doesn't do the trick. Don't remember these so well anymore.
Click to expand...
Click to collapse
I have done many factory resets
They start with a screen saying "erasing" and then just stop then it restarts two times and then just go into LG screen again

Leon200318 said:
Anyone with the same problem or a fix?
Click to expand...
Click to collapse
Same problem, and i cant acces to recovery or bootloader, and im searching for scatter file to use sp flash tools.

javier8340 said:
Same problem, and i cant acces to recovery or bootloader, and im searching for scatter file to use sp flash tools.
Click to expand...
Click to collapse
I don't have the bootloader too but I guess yours Is locked too like mine
But that doesn't help me.
I have download mode and recovery mode where the only option is to factory reset it.
Adb doesn't work
And it doesn't made a change for me if I flash a OS that is right or if I flash a OS that is wrong.
It does the same with both so I can't see how I should ever revive it.
Mabye a custom recovery packed into the OS file but idk how and where to get one.

Leon200318 said:
I don't have the bootloader too but I guess yours Is locked too like mine
But that doesn't help me.
I have download mode and recovery mode where the only option is to factory reset it.
Adb doesn't work
And it doesn't made a change for me if I flash a OS that is right or if I flash a OS that is wrong.
It does the same with both so I can't see how I should ever revive it.
Mabye a custom recovery packed into the OS file but idk how and where to get one.
Click to expand...
Click to collapse
I have seen a video where a men do a reflow and works but i dont know if is these the problem, i think its dead.