[Q] Softbricked LG G3 Bootloop - G3 Q&A, Help & Troubleshooting

Hi, new here.
I do believe you guys aren't too keen on US Cellular. But I have all of the files I need. It's more of an overall sort of question.
So here's my situation:
I was being stupid and messed with the permissions on my phone, not knowing what I was doing(trying to get titanium backup to move apps to the sd card). Well, it messed up my phone. Anyways, I tried a few things to fix it and then it got stuck in a bootloop.
I am currently able to get on TWRP and fastboot. I need to get the LG Flash Tool to see my device to flash the stock KDZ but it won't see my phone without Download mode. I wanted to put my laf.img file onto my phone through fastboot to get Download mode back. My phone will show up on my computer, but when I try any ADB or Fastboot commands, it shows no devices.
Is there a way to flash my KDZ without restoring my Download mode?
Is there a way to put the laf.img onto my phone since my computer cannot see my device(through asb/fastboot)?
Is it possible to convert the laf.img into a zip and flash it through TWRP and get my download mode back?
Thanks for the help, and sorry for the long post.
UPDATE I screwed myself a little on this one. I no longer have TWRP, it goes straight to fastboot. Any Help Please?

What model do you have?

levi3k said:
Hi, new here.
I do believe you guys aren't too keen on US Cellular. But I have all of the files I need. It's more of an overall sort of question.
So here's my situation:
I was being stupid and messed with the permissions on my phone, not knowing what I was doing(trying to get titanium backup to move apps to the sd card). Well, it messed up my phone. Anyways, I tried a few things to fix it and then it got stuck in a bootloop.
I am currently able to get on TWRP and fastboot. I need to get the LG Flash Tool to see my device to flash the stock KDZ but it won't see my phone without Download mode. I wanted to put my laf.img file onto my phone through fastboot to get Download mode back. My phone will show up on my computer, but when I try any ADB or Fastboot commands, it shows no devices.
Is there a way to flash my KDZ without restoring my Download mode?
Is there a way to put the laf.img onto my phone since my computer cannot see my device(through asb/fastboot)?
Is it possible to convert the laf.img into a zip and flash it through TWRP and get my download mode back?
Thanks for the help, and sorry for the long post.
UPDATE I screwed myself a little on this one. I no longer have TWRP, it goes straight to fastboot. Any Help Please?
Click to expand...
Click to collapse
It is possible to make an update.zip to flash the laf.img to the laf partition but I don't know how. Also you can use fastboot to flash the laf.img just boot to fastboot plug your phone into your computer and run fastboot flash laf.img laf
That should do the trick. Or you could flash a rom to fix the permissions. Any US cellular compatible rom should work.
Also TWRP has a file manager that might be able to fix the permissions if you remember what they were.
Hope that this helps.

Related

Stuck with twrp 2.6.3.2 and adb working

I bought this phone and I cant restore it to stock firmware with flashtool cuz computer thinks its a different model than the dll and tot files, Ive tried with the dll file that supposes to ignore de model number but i get crossedl error.
I can push files in adb but it seems like twrp wont flash anything properly, for example If i flash a rom the process takes like 4 seconds but when I reboot the phone it goes back to twrp, Ive tried flashing a newer version of twrp but its the same thing
Is there anyway I can force my phone to boot into fastboot? any help would be appreciated
I fixed it pushing the original built.prop from another g2 using adb commands and then i used flashtool.

[Q] LG G3 Stuck on fastboot! [FIXED!!!!!]

I was trying to install TWRP on my phone (LS990, ZV8) using flashify app. This didn't work and after I did so, every time I would try to "reboot into recovery" the phone would get stuck and I would need to pull the battery out. I then read somewhere that the fix was to delete the aboot.img and install the kitkat aboot.img . I tried to do that, and afterwards my phone won't boot at all. It gets stuck and screen turns black and the LED flashes. It sometimes gives me an error message about the bootloader I think. If I try to boot into Download mode, it (sometimes) takes me straight into fastboot instead. When I try to run fastboot and type "devices" I either get back nothing or now I get back a "?". Maybe I don't have the proper driver. Please Please help!!!
Upsdate: Ok so I played with the drivers and although I still can't get a response to "fastboot devices" I tried to flash a recovery and I can get response on the phone to some degree. It says "fastboot: getwarartition-type:recovery" but the cmd prompt on the computer says "cannot load recovery.img".
Maybe I just need to try and flash a bootloader or a download mode. Anyone know where I can get an laf for download mode. Or Have any directions?
Please help me!!!
UPDATE: FIXED IT!!!! What I did was use fastboot to load up an laf.img that I was able to download from someone on here (took a lot of searching to find an laf.img). Even though I was unable to flash the laf (tried a bunch of times and it always gave me that "failure to write" error right at the end), I was able to use fastboot to boot up the laf.img that was on my computer and that got the phone into download mode. Bear in mind that I still wouldn't get the serial number back from "fastboot devices" so if you're having this problem and it doesn't give you the serial number back it's ok. Just try to run some fastboot commands and see if you get a response on the phone, that way you'll know if fastboot is working. Anyway, I was then able to restore it via LGFlashtool. So yup, its fixable!
MWGiants said:
I was trying to install TWRP on my phone (LS990, ZV8) using flashify app. This didn't work and after I did so, every time I would try to "reboot into recovery" the phone would get stuck and I would need to pull the battery out. I then read somewhere that the fix was to delete the aboot.img and install the kitkat aboot.img . I tried to do that, and afterwards my phone won't boot at all. It gets stuck and screen turns black and the LED flashes. It sometimes gives me an error message about the bootloader I think. If I try to boot into Download mode, it (sometimes) takes me straight into fastboot instead. When I try to run fastboot and type "devices" I either get back nothing or now I get back a "?". Maybe I don't have the proper driver. Please Please help!!!
Upsdate: Ok so I played with the drivers and although I still can't get a response to "fastboot devices" I tried to flash a recovery and I can get response on the phone to some degree. It says "fastboot: getwarartition-type:recovery" but the cmd prompt on the computer says "cannot load recovery.img".
Maybe I just need to try and flash a bootloader or a download mode. Anyone know where I can get an laf for download mode. Or Have any directions?
Please help me!!!
Click to expand...
Click to collapse
Unfortunately its hard bricked and the repair center will know that you tampered with it. The nature of the LG bootloader makes it so that you cant write or boot any images using fastboot.
What was wrong with your method is, when you downgrade to KitKat android bootloader you have to also downgrade the bootloader, laf and recovery partition or other wise it bricks. You should have downgraded your phone using LG Flash Tool to KitKat and then root and install whatever you wanted
In your case the version mismatch between your aboot, bootloader and laf partition is the reason why it doesnt work
MWGiants said:
I was trying to install TWRP on my phone (LS990, ZV8) using flashify app. This didn't work and after I did so, every time I would try to "reboot into recovery" the phone would get stuck and I would need to pull the battery out. I then read somewhere that the fix was to delete the aboot.img and install the kitkat aboot.img . I tried to do that, and afterwards my phone won't boot at all. It gets stuck and screen turns black and the LED flashes. It sometimes gives me an error message about the bootloader I think. If I try to boot into Download mode, it (sometimes) takes me straight into fastboot instead. When I try to run fastboot and type "devices" I either get back nothing or now I get back a "?". Maybe I don't have the proper driver. Please Please help!!!
Upsdate: Ok so I played with the drivers and although I still can't get a response to "fastboot devices" I tried to flash a recovery and I can get response on the phone to some degree. It says "fastboot: getwarartition-type:recovery" but the cmd prompt on the computer says "cannot load recovery.img".
Maybe I just need to try and flash a bootloader or a download mode. Anyone know where I can get an laf for download mode. Or Have any directions?
Please help me!!!
Click to expand...
Click to collapse
If, as you say, you can enter Download Mode, you could try this Method by @hyelton :- http://forum.xda-developers.com/showthread.php?t=2785089. Any problems ask in that Thread, they will try and Help. GOOD LUCK.......:good:
itsbighead said:
Unfortunately its hard bricked and the repair center will know that you tampered with it. The nature of the LG bootloader makes it so that you cant write or boot any images using fastboot.
What was wrong with your method is, when you downgrade to KitKat android bootloader you have to also downgrade the bootloader, laf and recovery partition or other wise it bricks. You should have downgraded your phone using LG Flash Tool to KitKat and then root and install whatever you wanted
In your case the version mismatch between your aboot, bootloader and laf partition is the reason why it doesnt work
Click to expand...
Click to collapse
OK sir, I fixed it so clearly it was not hard bricked (don't say that if you aren't sure, it would have cost me plenty of money to replace that had I not known better). What I did was use fastboot to load up an laf.img that I was able to download from someone on here. Even though I was unable to flash the laf, I was able to use fastboot to boot up the laf.img that was on my computer and that got the phone into download mode. I was then able to restore it via LGFlashtool. So yup, its fixable!
573v3 said:
If, as you say, you can enter Download Mode, you could try this Method by @hyelton :- http://forum.xda-developers.com/showthread.php?t=2785089. Any problems ask in that Thread, they will try and Help. GOOD LUCK.......:good:
Click to expand...
Click to collapse
Yeah, once I got it into download mode (that was the whole problem, I was stuck in fastboot) I was able to fix it.
MWGiants said:
OK sir, I fixed it so clearly it was not hard bricked (don't say that if you aren't sure, it would have cost me plenty of money to replace that had I not known better). What I did was use fastboot to load up an laf.img that I was able to download from someone on here. Even though I was unable to flash the laf, I was able to use fastboot to boot up the laf.img that was on my computer and that got the phone into download mode. I was then able to restore it via LGFlashtool. So yup, its fixable!
Yeah, once I got it into download mode (that was the whole problem, I was stuck in fastboot) I was able to fix it.
Click to expand...
Click to collapse
congrats. it is good to know it is fixable
That's awesome to hear. It seems that booting the laf partition does not actually work under fastboot mode for D855 variants which is why I thought it wouldn't work for you
Sent from my iPad using Tapatalk
That's great. And what fastboot commands did you use to execute the laf from your computer ?
Verstuurd vanaf mijn HTC One_M8 met Tapatalk
Hakem said:
That's great. And what fastboot commands did you use to execute the laf from your computer ?
Verstuurd vanaf mijn HTC One_M8 met Tapatalk
Click to expand...
Click to collapse
Fastboot boot laf.img
But beware this doesnt work for D855. His LS980 has a unlocked bootloader
Ok thanks
Verstuurd vanaf mijn HTC One_M8 met Tapatalk
MWGiants said:
I was trying to install TWRP on my phone (LS990, ZV8) using flashify app. This didn't work and after I did so, every time I would try to "reboot into recovery" the phone would get stuck and I would need to pull the battery out. I then read somewhere that the fix was to delete the aboot.img and install the kitkat aboot.img . I tried to do that, and afterwards my phone won't boot at all. It gets stuck and screen turns black and the LED flashes. It sometimes gives me an error message about the bootloader I think. If I try to boot into Download mode, it (sometimes) takes me straight into fastboot instead. When I try to run fastboot and type "devices" I either get back nothing or now I get back a "?". Maybe I don't have the proper driver. Please Please help!!!
Upsdate: Ok so I played with the drivers and although I still can't get a response to "fastboot devices" I tried to flash a recovery and I can get response on the phone to some degree. It says "fastboot: getwarartition-type:recovery" but the cmd prompt on the computer says "cannot load recovery.img".
Maybe I just need to try and flash a bootloader or a download mode. Anyone know where I can get an laf for download mode. Or Have any directions?
Please help me!!!
UPDATE: FIXED IT!!!! What I did was use fastboot to load up an laf.img that I was able to download from someone on here (took a lot of searching to find an laf.img). Even though I was unable to flash the laf (tried a bunch of times and it always gave me that "failure to write" error right at the end), I was able to use fastboot to boot up the laf.img that was on my computer and that got the phone into download mode. Bear in mind that I still wouldn't get the serial number back from "fastboot devices" so if you're having this problem and it doesn't give you the serial number back it's ok. Just try to run some fastboot commands and see if you get a response on the phone, that way you'll know if fastboot is working. Anyway, I was then able to restore it via LGFlashtool. So yup, its fixable!
Click to expand...
Click to collapse
Hey bro i m having same issue ! Can you please explain laf.img , i tried twrp.img !
What does 'laf' means
bikrame said:
Hey bro i m having same issue ! Can you please explain laf.img , i tried twrp.img !
What does 'laf' means
Click to expand...
Click to collapse
Hi, sorry for the late reply. I hope you've already fixed it, but if you're still having this problem then let me explain. "laf.img" is the "download mode" partition. The reason you can't use twrp.img (which is a recovery partition image) is because you're "too far gone" so to speak and not even at the point to try and get into recovery. You need to restore download mode first. If you have fastboot properly working (not going to explain that, look it up, there is plenty of info about that on here and other sites), then you can do what I did. (Although from what other people are saying if you have a D855 it will have a locked bootloader and this won't work, I cant tell you about that because I don't have one and haven't played around with one). Anyway, if you have fastboot working properly (read my first post about how it can be working as long as the phone is responsive, even if you don't get back the "devices comman", you may need to play around with the drivers to get this to work) then you need to obtain an laf.img from somwhere. I found a complete set of .img's for my model somewhere (don't remember if it was on this site or somewhere else). It took a lot of searching, but I'm sure you can find one. Once you have that and the working fastboot then run the command "fastboot boot [location of your laf.img]laf.img"
GOOD LUCK!!!
itsbighead said:
That's awesome to hear. It seems that booting the laf partition does not actually work under fastboot mode for D855 variants which is why I thought it wouldn't work for you
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
That's interesting...do you have any idea why that would be? Is it a locked bootloader like someone else mentioned? (I don't know much about the D855 model, never got to play with one). Maybe there is a workaround we can come up with...
itsbighead said:
Unfortunately its hard bricked and the repair center will know that you tampered with it. The nature of the LG bootloader makes it so that you cant write or boot any images using fastboot.
What was wrong with your method is, when you downgrade to KitKat android bootloader you have to also downgrade the bootloader, laf and recovery partition or other wise it bricks. You should have downgraded your phone using LG Flash Tool to KitKat and then root and install whatever you wanted
In your case the version mismatch between your aboot, bootloader and laf partition is the reason why it doesnt work
Click to expand...
Click to collapse
I realized the problem with the mismatched aboot after the fact... ironically it all worked out because after all of this I am now back to the original kitkat and can just root and flash as you said lol.
Complete Fix Guide
http://forum.xda-developers.com/spr...y-download-t3053985/post60106965#post60106965
Can you please post where you got your laf file? I have the same problem :crying:
MWGiants said:
I was trying to install TWRP on my phone (LS990, ZV8) using flashify app. This didn't work and after I did so, every time I would try to "reboot into recovery" the phone would get stuck and I would need to pull the battery out. I then read somewhere that the fix was to delete the aboot.img and install the kitkat aboot.img . I tried to do that, and afterwards my phone won't boot at all. It gets stuck and screen turns black and the LED flashes. It sometimes gives me an error message about the bootloader I think. If I try to boot into Download mode, it (sometimes) takes me straight into fastboot instead. When I try to run fastboot and type "devices" I either get back nothing or now I get back a "?". Maybe I don't have the proper driver. Please Please help!!!
Upsdate: Ok so I played with the drivers and although I still can't get a response to "fastboot devices" I tried to flash a recovery and I can get response on the phone to some degree. It says "fastboot: getwarartition-type:recovery" but the cmd prompt on the computer says "cannot load recovery.img".
Maybe I just need to try and flash a bootloader or a download mode. Anyone know where I can get an laf for download mode. Or Have any directions?
Please help me!!!
UPDATE: FIXED IT!!!! What I did was use fastboot to load up an laf.img that I was able to download from someone on here (took a lot of searching to find an laf.img). Even though I was unable to flash the laf (tried a bunch of times and it always gave me that "failure to write" error right at the end), I was able to use fastboot to boot up the laf.img that was on my computer and that got the phone into download mode. Bear in mind that I still wouldn't get the serial number back from "fastboot devices" so if you're having this problem and it doesn't give you the serial number back it's ok. Just try to run some fastboot commands and see if you get a response on the phone, that way you'll know if fastboot is working. Anyway, I was then able to restore it via LGFlashtool. So yup, its fixable!
Click to expand...
Click to collapse
can you please help. adb shows my device and fastboot wont. when i type in fastboot devices it doesnt show anything. tried to run commands but it always gets stuck on waiting for device..
MWGiants said:
(Although from what other people are saying if you have a D855 it will have a locked bootloader and this won't work,
Click to expand...
Click to collapse
What to do with D855 than, my friend have D855 and it's stcked in fastboot mode, doesn't allow to flash anything?
lg g3 f410 stuck at fastboot
i tried the solution it didnot work. phone accepts the cmds but remain stuck at fastboot any other method?

Recovery not recognized.

Hello there
I have a T700 with no operating system on it that i'd like to flash a rom onto. I've flashed TWRP onto it, however, I can't seem to mount the data partition and the device shows up as an MTP USB Device and thus I am not able to push files onto the device.
Also, whenever i revert the tablet back to stock, and flash twrp onto it using odin, it still reboots into the stock recovery.
If anyone knows what I could be doing wrong here, I would love to know.
Rintse.
There is no fastboot mode. You need to use odin in download mode.
ashyx said:
There is no fastboot mode. You need to use odin in download mode.
Click to expand...
Click to collapse
I was referring to download mode. I want to use fastboot commands while the tablet is in download mode though.
Edit: I was confused, sorry for the hassle.

LG G4 refuses to load recovery.

I own h815 (LG G4), and i have successfully flashed (twrp-3.0.2-0-h815.img) as well as unlocked my bootloader. Now i need to access recovery mode, but my phone goes to safe mode if i try using VOLUME DOWN + POWER. So i used the following command in adb "adb reboot recovery" and it boots my phone, but all i see is laying android with open body and RED triangle and nothing happens.
So if anybody has an idea what could i do, let me know.
P.S. I did try other version TWRP, but the same occurs. And i am running Windows 10 64 bit pro, with all drivers, adb and sdk ready. Also sorry for the provided picture being blurry, it's been taken with old Samsung device.
Preview of the issue: (Just type imgur than .com than \ than fBlaeC1) [with out spaces and than]
Thank you all in advance!
I recall having similar issues. Copy the recovery image to your SD card, and keep a copy in the folder which contains the fastboot exe on your PC.
Open a command prompt and type fastboot boot recovery.img (where recovery.img is the name of the img file you're using). It should boot you in to twrp.
From there, you can flash the image you copied to the SD card using the install command.
Make sense?
Edit: it's explained here in a little more detail (towards the end of the first post): http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
El Presidente81 said:
I recall having similar issues. Copy the recovery image to your SD card, and keep a copy in the folder which contains the fastboot exe on your PC.
Open a command prompt and type fastboot boot recovery.img (where recovery.img is the name of the img file you're using). It should boot you in to twrp.
From there, you can flash the image you copied to the SD card using the install command.
Make sense?
Edit: it's explained here in a little more detail (towards the end of the first post): http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Click to expand...
Click to collapse
Yeah that's what i did, and i used different twrp witch worked. Sadly due to my inpatients i have managed to hard brick my phone. Because i took my battery out when the twrp was trying to root. Since there was no bar, i taught it was in boot loop. After that it won't boot up, it's stuck in "bootloader status: unlocked"...
Well tomorrow i will put it on octopus box, and flash new h185. I just hope, that i'll succeed in rooting this device.
Also the working method for twrp can be found on android root guides. They seem to recommend "Chainfire SuperSU for LG G4" as rooting method.
If you have rooted your device, let me know witch method have you used.
the lost account said:
Yeah that's what i did, and i used different twrp witch worked. Sadly due to my inpatients i have managed to hard brick my phone. Because i took my battery out when the twrp was trying to root. Since there was no bar, i taught it was in boot loop. After that it won't boot up, it's stuck in "bootloader status: unlocked"...
Well tomorrow i will put it on octopus box, and flash new h185. I just hope, that i'll succeed in rooting this device.
Also the working method for twrp can be found on android root guides. They seem to recommend "Chainfire SuperSU for LG G4" as rooting method.
If you have rooted your device, let me know witch method have you used.
Click to expand...
Click to collapse
Try to use lgup to flash the stock files. I think you can do that from any screen. After that do what the other dude said and if will work like a charm

Bricked LG G4 H810 [mmcblk0p24, mmcblk0p24 & mmcblk0p25 Partitions Corrupt]

Hey guys, I think I may have permanently bricked my device :/ As it is a H810 there is no recovery available so I can only enter download-mode and fast-boot mode. Basically I accidentally flashed the wrong files
dd if=/sdcard/modemst1.img of=/dev/zero of=/dev/block/mmcblk0p24
dd if=/sdcard/modemst2.img of=/dev/zero of=/dev/block/mmcblk0p25
dd if=/sdcard/modemst3.img of=/dev/zero of=/dev/block/mmcblk0p26
as I transferred the incorrect backed-up files from my computer (I ended up flashing my friends H815 backed up files by mistake). This meant that the phone was unable to boot and is now stuck in a boot loop. I have tried flashing the partitions using fastboot flash mmcblk0p24 modemstl1.img without success and in download mode the device is not recognised so I cannot perform an adb push/pull command.
Thankfully I do have the correct img files to flash back on my computer but I cannot figure out how to actually transfer them to the device. A side note- LGUP does work successfully to flash a stock TOT file to Lolipop so if that is able to copy the new ROM to the device and flash the system partition there might be a way to transfer the files over. The only problem I can see is there really is no way to unlock the bootloader and as the files are not 'stock' this may not be possible.
If anyone has any ideas that would be greatly appreciated. Cheers.
But if LGUP is working for you, why dont you use the option to "upgrade" the phone to the version of the ROM you were using ?
My lg g4 h810 is stuck in fastboot mode not recovery mode not downloading please any one have any idea

Categories

Resources