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

Unbrick bricked by writing boot.img to wrong mmcblk

Hello community members,
TL;DR no adb, no fastboot, no flashmode, no QDloader (or similar) ... how to unbrick it?
I was trying to force Android to allow lower lcd backlight brightness levels by patching framework-res.apk and I had the edited zip file ready to flash. Then I realized that my Android 7 Ressurection remix ROM (thread) flashed Cyanogenmod recovery, which I don't like. So I decided to reflash TWRP 3.0.2 (link) ( edit: using "fastboot flash boot twrp.img", which was almost fatal mistake) and it has gone almost well. The phone started to boot into recovery mode everytime (and took a long time doing so). So I googled a bit and found this thread which lead me to this thread. I was looking forward to seeing my display brightness at lower than default values, so I probably skipped some security checks and texts with red color, so I flashed the zip with the boot.img replaced. After flashing I chose reboot and nothing happened since.
The problem is I flashed something that was not for my device (extracted boot.img to wrong mmcblk). The command that bricked my phone is (from META-INF/com/google/android/updater-script):
Code:
package_extract_file("boot.img", "/dev/block/mmcblk0p6");
After that it doesn't boot, doesn't light up LED (even when charging), doesn't get detected by PC in any state.
So I have no adb, no fastboot and no flashmode and not even a QDloader or similar mode.
Is there a way to unbrick it?
EDIT: How to unbrick it using JTAG interface? If I find somebody that has the required equipment, what data do I need to give them?

Hey there! Did you manage to solve the issue, because I just got into the same situation after the zip didn't save the corrected partitions but the initial ones... So i ended up without any signs of life in my phone

valkata752 said:
Hey there! Did you manage to solve the issue, because I just got into the same situation after the zip didn't save the corrected partitions but the initial ones... So i ended up without any signs of life in my phone
Click to expand...
Click to collapse
Nope, I found no solution ... even some kind of Qualcomm flashing mode via COM (serial port over USB) does not show up nowhere. I gave up and bought a used S5 mini, which is full of features I appreciate.
I'm gonna keep this Xperia M for some time if some solution comes up.

hi , can you boot into recovery ? ..if yes, i can maybe help

olibub said:
hi , can you boot into recovery ? ..if yes, i can maybe help
Click to expand...
Click to collapse
No, as I said, the phone does not react on anything. I would be able to put it back together if this was possible.

mik13ST said:
No, as I said, the phone does not react on anything. I would be able to put it back together if this was possible.
Click to expand...
Click to collapse
:/ this will be a problem... try look here http://rootmyandroid.org/how-to-unbrick-your-android-device-the-ultimate-guide.html/
and find this article "Unbrick any android device with Once Click Unbrick tool"

mik13ST said:
No, as I said, the phone does not react on anything. I would be able to put it back together if this was possible.
Click to expand...
Click to collapse
can you still access fastboot mode? anyway you need to know first what is exactly partition that you overwrite with boot.img :/
. That was really critical -_-

olibub said:
:/ this will be a problem... try look here http://rootmyandroid.org/how-to-unbrick-your-android-device-the-ultimate-guide.html/
and find this article "Unbrick any android device with Once Click Unbrick tool"
Click to expand...
Click to collapse
Nice looking tutorial, but I cannot find any download link for that One Click Unbrick Tool in that article. I doubt it would work, they are not explaining what it does.
Nicklas Van Dam said:
can you still access fastboot mode? anyway you need to know first what is exactly partition that you overwrite with boot.img :/
. That was really critical -_-
Click to expand...
Click to collapse
No, as I said. The partition that got overwritten was /dev/block/mmcblk0p6. It was overwritten by boot.img from LG OPTIMUS 3D that I link to in the main post.

here you can download unbrick tool https://forum.xda-developers.com/showthread.php?t=1153310

olibub said:
here you can download unbrick tool https://forum.xda-developers.com/showthread.php?t=1153310
Click to expand...
Click to collapse
I don't think this has any chance that it will work.
"This Software:
Will work on all Samsung devices which use Odin3"

Do you know how to use Flashtool?
If so, did you already attempt flashing a ftf via Flashmode (Hold VolDown)?

PhoenixTwoFive said:
Do you know how to use Flashtool?
If so, did you already attempt flashing a ftf via Flashmode (Hold VolDown)?
Click to expand...
Click to collapse
I know what Flashtool is. I know what ftf is. I used it once I think.
But the phone does not boot into flashmode as I mention in the main post.

Unable to flash any files due to error 1

Hi guys,
Whenever I'm trying to install a zip through recovery like magisk, super su,viper4arise etc I am getting error 1.
I am unable to root for the same reason. Please can someone help me out.
I am on AEX 5.3 latest release.
Please help. Your help will be much appreciated

[email protected] said:
Hi guys,
Whenever I'm trying to install a zip through recovery like magisk, super su,viper4arise etc I am getting error 1.
I am unable to root for the same reason. Please can someone help me out.
I am on AEX 5.3 latest release.
Please help. Your help will be much appreciated
Click to expand...
Click to collapse
Have you updated to the latest recovery?
Here
https://forum.xda-developers.com/le...ery-official-twrp-3-1-0-zuk-z2-t3587092/page5

visheshjain25 said:
Have you updated to the latest recovery?
Here
https://forum.xda-developers.com/le...ery-official-twrp-3-1-0-zuk-z2-t3587092/page5
Click to expand...
Click to collapse
I tried that after posting my question. But fastboot is not recognising my mobile.
When I open powershell and type adb devices, then it shows up, but no fastboot commands seem to work. Please help with that as well.

[email protected] said:
I tried that after posting my question. But fastboot is not recognising my mobile.
When I open powershell and type adb devices, then it shows up, but no fastboot commands seem to work. Please help with that as well.
Click to expand...
Click to collapse
If you're able to switch on the device, then download flashify via playstore and install the latest TWRP through it

My phone is not getting rooted. I was on another rom in which my phone was rooted. When i switched to AEX, it got unrooted. I am unable to root my phone by flashing magisk or SuperSU zip in TWRP. I think flashify works only on rooted devices.
Please help me with all my issues.

[email protected] said:
I tried that after posting my question. But fastboot is not recognising my mobile.
When I open powershell and type adb devices, then it shows up, but no fastboot commands seem to work. Please help with that as well.
Click to expand...
Click to collapse
fastboot devices returns blank or Fastboot isn't recognised?

Returning blank bro. Can I call you up and explain my problem to you? You can send me your number in personal message.
I am quite desperate. Not a total noob, but not an expert either. Please help out.

[email protected] said:
Returning blank bro. Can I call you up and explain my problem to you? You can send me your number in personal message.
I am quite desperate. Not a total noob, but not an expert either. Please help out.
Click to expand...
Click to collapse
use this tool : drive.google.com/file/d/1WHHKKhs3pI4m9jNHhHmFL1fQeqtNS-3X/view
steps ;
1. click on run it will fix the permission issue (phone automatically boots to fastboot mode)
2. use fastboot provided in the tool to issue further fastboot commands

LG G7 fastboot unbrick solution? [SOLVED]

As many out here my UK G7 never got any updates so after LG Bridge found an update but failed to install due to an error 0x5..... I decided to download G710EM20b_00_OPEN_EU_OP_0508.kdz and flash it via LGUP. It failed on 91% and after trying to flash another kdz and trying with another LGUP_Common.dll the phone rebooted and got stuck in Fastboot. Holding down Volume Up and plugging it in shows Download Mode for a fraction of a second and goes back to Fastboot. As per other theards suggested extracting laf.img from both Oreo and Pie kdz and then "fastboot boot laf.img" gives me a weird screen saying "Your device has failed a routine safety check and will not boot" and restarts to back to Fastboot. So is there anybody who knows how to bring back Download Mode so I can try flashing another kdz with LGUP considering the bootloader is locked?
*UPDATE*
SOLUTION - flashed ok with Medusa over Teamviewer, cost $30 and takes 1-2h depending on your PC setup, broadband speed, driver issues etc.
or
Go to your local highstreet phone shop and ask them if they do JTAG over Medusa or Octoplus, if they give you a weird look - just walk away.
Conclusion - you car brick it even LGUP accepted LGUP_Common.dll but you can't fix it yourself.

Try to use the fastboot command to get into download mode..
fastboot reboot download

loonycgb2 said:
Try to use the fastboot command to get into download mode..
fastboot reboot download
Click to expand...
Click to collapse
Doesn't work.

I had a nearly identical experience and fastboot boot laf.img worked to restore download mode. FWIW, I extracted laf from Pie kdz, I think G710AWM20a_00_OPEN_CA_OP_0523.kdz although I doubt that is what is causing your error.

mr3p said:
I had a nearly identical experience and fastboot boot laf.img worked to restore download mode. FWIW, I extracted laf from Pie kdz, I think G710AWM20a_00_OPEN_CA_OP_0523.kdz although I doubt that is what is causing your error.
Click to expand...
Click to collapse
He has a corrupted laf partition so it goes straight to fastboot.
But that would work perfect to get him into download mode.. Any laf img would work.

loonycgb2 said:
He has a corrupted laf partition so it goes straight to fastboot.
But that would work perfect to get him into download mode.. Any laf img would work.[/QUOTE
Already tried about 6 different laf files extracted from both Pie and Oreo kdz but every time I get that weird security message which reboots automatically after a minute or so.
Click to expand...
Click to collapse

skromnia said:
Already tried about 6 different laf files extracted from both Pie and Oreo kdz but every time I get that weird security message which reboots automatically after a minute or so.
Click to expand...
Click to collapse
Are you connecting your phone to an Intel PC?

mr3p said:
Are you connecting your phone to an Intel PC?
Click to expand...
Click to collapse
Tried on both AMD Windows 10 and Intel on Vista. Same results.

skromnia said:
AMD running Windows 10. What difference does it make having all the correct drivers installed?
Click to expand...
Click to collapse
When what you are doing doesn't work when it should, you have to consider possible reasons which is why I asked.

mr3p said:
When what you are doing doesn't work when it should, you have to consider possible reasons which is why I asked.
Click to expand...
Click to collapse
I've swapped computers before because of compatibility issues but that's not the case here. Obviously this particular firmware bricks many phones due to whatever reasons but I seriously doubt I'm the only person with that security error screen right now.

skromnia said:
I've swapped computers before because of compatibility issues but that's not the case here. Obviously this particular firmware bricks many phones due to whatever reasons but I seriously doubt I'm the only person with that security error screen right now.
Click to expand...
Click to collapse
When you try to boot the laf img what does it say exactly??
Just to confirm you are doing:
fastboot boot laf.img
And not:
fastboot flash laf laf.img

skromnia said:
I've swapped computers before because of compatibility issues but that's not the case here. Obviously this particular firmware bricks many phones due to whatever reasons but I seriously doubt I'm the only person with that security error screen right now.
Click to expand...
Click to collapse
I have both Intel and AMD systems however the suggestion to use an Intel PC was made because you would not be the first person to have issues on an AMD system. Yes, you may have loaded an incompatible kdz however it's likely you were using a bad version of LGUP or had the wrong dll. You are definitely not the only person who has had this issue including myself as I've mentioned.

loonycgb2 said:
When you try to boot the laf img what does it say exactly??
Just to confirm you are doing:
fastboot boot laf.img
And not:
fastboot flash laf laf.img
Click to expand...
Click to collapse
It gives me that failed security screen as the attached photo.

loonycgb2 said:
When you try to boot the laf img what does it say exactly??
Just to confirm you are doing:
fastboot boot laf.img
And not:
fastboot flash laf laf.img
Click to expand...
Click to collapse
mr3p said:
I have both Intel and AMD systems however the suggestion to use an Intel PC was made because you would not be the first person to have issues on an AMD system. Yes, you may have loaded an incompatible kdz however it's likely you were using a bad version of LGUP or had the wrong dll. You are definitely not the only person who has had this issue including myself as I've mentioned.
Click to expand...
Click to collapse
I had issues with Odin on AMD but having LGUP fail at 91% as other makes me think we're doing the same thing wrong.

skromnia said:
I had issues with Odin on AMD but having LGUP fail at 91% as other makes me think we're doing the same thing wrong.
Click to expand...
Click to collapse
The ryzen (3900x) issues is due to people using cheap motherboards.. After i swapped to the aurorus extreme x570 board my usb issues for fastboot and adb went away.
But the error screen is normal when you brick, but nobody knowledgable has attempted to fix it.. Everybody ends up getting help from the octoplus guys to fix it.

Problem solved, look at the first post for solution and somebody can lock the thread.

Hi there, this post is kinda dead but I wanted to know how this problem was solved.
I'm having the exact same issue. Is there anyone with a MedusaBox that can help me getting stock?
Thanks

Question alioth hardbrick / dead phone

help, how to get my alioth back from hardbrick / deadphone
alioth already UBL

Buy a new one.
What happened? More details man.

hexisg said:
Buy a new one.
What happened? More details man.
Click to expand...
Click to collapse
failed to flash with fastboot mode, when i was flash it suddenly died completely ;(

Deadley said:
failed to flash with fastboot mode, when i was flash it suddenly died completely ;(
Click to expand...
Click to collapse
Have you unlocked bootloader? What rom did you have and what try to install?

U used Miflash to flash stock rom or what?

We can't help without more exact details. Plug the device in to charge (could've been flashing and run out of battery). Plug into charge for 1hr or so and then try booting into fastboot and connect to PC. Otherwise try booting into EDL mode.

Deadley said:
help, how to get my alioth back from hardbrick / deadphone
alioth already UBL
Click to expand...
Click to collapse
Flash via testpoint. You will need to open your phone cover, service firmware and an authorized account. In other words, you need to go to the service center, pay money and waiting 2-3 days. I ran into this 4 days ago. I received a complete corpse (hard brick) that did not react to anything at all.

I don't really know where to ask this but, has anyone had problems flashing all the way through to stock? I can't seem to get Miflash working properly. So I go through extracting the file. Then go inside, right click on the flash all bat, and run as admin. It goes through the process. But when it gets to flashing 7/9 super sparse, part way through, the fastboot window just goes away and the flash does not finish. I have tried different versions and different tools, but never finishes. Have to flash to Arrow rom or EU rom to get back up and running. Any help would be appreciated. Thanks

bricky23 said:
I don't really know where to ask this but, has anyone had problems flashing all the way through to stock? I can't seem to get Miflash working properly. So I go through extracting the file. Then go inside, right click on the flash all bat, and run as admin. It goes through the process. But when it gets to flashing 7/9 super sparse, part way through, the fastboot window just goes away and the flash does not finish. I have tried different versions and different tools, but never finishes. Have to flash to Arrow rom or EU rom to get back up and running. Any help would be appreciated. Thanks
Click to expand...
Click to collapse
Do you try with another cable?

Maybe the image is corrupted Try redownload the fastboot firmware.

minotavros said:
Have you unlocked bootloader? What rom did you have and what try to install?
Click to expand...
Click to collapse
yes bootloader has been unlocked, from global to EU

hexisg said:
U used Miflash to flash stock rom or what?
Click to expand...
Click to collapse
I used miflash to flash from global to EU

I think it's a flashing error
Robert314 said:
We can't help without more exact details. Plug the device in to charge (could've been flashing and run out of battery). Plug into charge for 1hr or so and then try booting into fastboot and connect to PC. Otherwise try booting into EDL mode.
Click to expand...
Click to collapse
I think it's a flashing error

bricky23 said:
I don't really know where to ask this but, has anyone had problems flashing all the way through to stock? I can't seem to get Miflash working properly. So I go through extracting the file. Then go inside, right click on the flash all bat, and run as admin. It goes through the process. But when it gets to flashing 7/9 super sparse, part way through, the fastboot window just goes away and the flash does not finish. I have tried different versions and different tools, but never finishes. Have to flash to Arrow rom or EU rom to get back up and running. Any help would be appreciated. Thanks
Click to expand...
Click to collapse
but i can't enter fastboot mode, and no twrp is installed

blinoff82 said:
Flash via testpoint. You will need to open your phone cover, service firmware and an authorized account. In other words, you need to go to the service center, pay money and waiting 2-3 days. I ran into this 4 days ago. I received a complete corpse (hard brick) that did not react to anything at all.
Click to expand...
Click to collapse
Has any hardware been replaced? I went to the service center they said they needed to replace the machine

Have you had flash_all and lock selected in MiFlash before flashing Eu from Global?

Deadley said:
Has any hardware been replaced? I went to the service center they said they needed to replace the machine
Click to expand...
Click to collapse
No. Only reflashed via testpoint. It seems to me that they want to deceive you.))

hexisg said:
Have you had flash_all and lock selected in MiFlash before flashing Eu from Global?
Click to expand...
Click to collapse
clean all but keep bootloader unlocked

@blinoff82
How did you bricked yours?

blinoff82 said:
No. Only reflashed via testpoint. It seems to me that they want to deceive you.))
Click to expand...
Click to collapse
I think that's the only way, thank you