V10 Bootloop Fix (lengthens life)

[Shreyu]

Well, maybe it's easiest to flash new version of software? Or you can try heating it a bit with hairdryer, so it will turn on long enough to see version of the software?

so i did manage to find out the software version - its 30c . I tried flashing the boot.img but gave me this error:

fastboot flash boot boot.img
target reported max download size of 536870912 bytes
sending 'boot' (16032 KB)...
OKAY [ 0.400s]
writing 'boot'...
FAILED (remote: unknown command)
finished. total time: 0.419s


then I tried to see if the bootloader was unlocked, and got this message:

C:\1>fastboot oem unlock
...
(bootloader) Device already : unlocked!
OKAY [ 0.018s]
finished. total time: 0.019s


then I tried to flash twrp.img to see if I could get into twrp, but then I got this error:

fastboot boot twrp-3.0.0-0-h901.img
downloading 'boot.img'...
OKAY [ 0.745s]
booting...
FAILED (remote: unknown command)
finished. total time: 0.762s

so at this point, I have no idea what to do next. Any suggestions?

 

[TheEnekaign]

so i did manage to find out the software version - its 30c . I tried flashing the boot.img but gave me this error:

fastboot flash boot boot.img
target reported max download size of 536870912 bytes
sending 'boot' (16032 KB)...
OKAY [ 0.400s]
writing 'boot'...
FAILED (remote: unknown command)
finished. total time: 0.419s


then I tried to see if the bootloader was unlocked, and got this message:

C:\1>fastboot oem unlock
...
(bootloader) Device already : unlocked!
OKAY [ 0.018s]
finished. total time: 0.019s


then I tried to flash twrp.img to see if I could get into twrp, but then I got this error:

fastboot boot twrp-3.0.0-0-h901.img
downloading 'boot.img'...
OKAY [ 0.745s]
booting...
FAILED (remote: unknown command)
finished. total time: 0.762s

so at this point, I have no idea what to do next. Any suggestions?

If it's 30c, that's Nougat an unfortunately a lot of the fastboot commands got disabled on Nougat. If you have the H901, you can use the root guide on the T-Mobile page to get TWRP on it. I'm not sure if it works on other versions yet though, I only have the H901 and that's worked on both 30c and 30d.
https://forum.xda-developers.com/tmobile-lg-v10/general/root-h901-nougat-t3773942

 

[Shreyu]

If it's 30c, that's Nougat an unfortunately a lot of the fastboot commands got disabled on Nougat. If you have the H901, you can use the root guide on the T-Mobile page to get TWRP on it. I'm not sure if it works on other versions yet though, I only have the H901 and that's worked on both 30c and 30d.
https://forum.xda-developers.com/tmobile-lg-v10/general/root-h901-nougat-t3773942

Thank you for the reply and the link.. Did you actually have to download FWUL in a USB stick? Did you have to follow the exact steps?

 

[TheEnekaign]

Thank you for the reply and the link.. Did you actually have to download FWUL in a USB stick? Did you have to follow the exact steps?

Sorry for the last response!
I did something slightly different, as I was following the tut before it was a script, and I also put TWRP on the laf, or download, partition, before flashing it to recovery and then flashing a rom that doesn't overwrite the recovery.

I used FWUL from a virtual machine, but launching it off a USB drive would probably be easier, as then you don't have to mess with extensions.

 

[samy2015]

i'll try re-soldering my phone's cpu myself

 

[datexar]

Hi, how do I know which kernel should I load? I have an h960 ar. I do not know if it's 20a 10b or what it is. Thank you

 

[hemal_4404]

@op of this thread I have H901 30d, can you make kernel for This?

 

[abadgamer]

hi
i wondered if my h960a cant get bootloader unlocking support, how come people could've unlocked and use the image files in this topic?
Unfortunately, your device(United Arab Emirates, (UNITED ARAB EMIRATES) )does not support unlocking the bootloader

 

[jakovdi]

@op of this thread I have H901 30d, can you make kernel for This?

I second this,have also H901 30d.
@stojshic or anyone who can make 4core kernel for this version please add to this thread.

 

[stojshic]

@jakovdi @hemal_4404
I'm so sorry for such a late reply. Did you guys manage to do anything about your phone? Do you still need modified kernel? I can make it if you want, I just haven't receive notification about new posts here, it looks like I somehow unsubscribed from this thread...
@abadgamer if your bootloader is not unlockable, there is no solution for you, sorry mate...

 

[.hack//]

@stojshic would appreciate it if you could post the modified kernel. Is it going to be as a TWRP flashable zip?

 

[hemal_4404]

Yes even I required

 

[stojshic]

I'm downloading full firmware now, as I could't find extracted boot file. Will post as soon the firmware downloads and I extract it and edit boot file...

 

[jakovdi]

@jakovdi @hemal_4404
I'm so sorry for such a late reply. Did you guys manage to do anything about your phone? Do you still need modified kernel? I can make it if you want, I just haven't receive notification about new posts here, it looks like I somehow unsubscribed from this thread...
@abadgamer if your bootloader is not unlockable, there is no solution for you, sorry mate...

I did not menage to do anyting,still stuck and waiting for H90130d kernel
Pozdrav druze

 

[stojshic]

Yes even I required

Modified kernel for booting on 4 cores for H901 30d uploaded. Test it and report back, hit thanks if I helped

@stojshic would appreciate it if you could post the modified kernel. Is it going to be as a TWRP flashable zip?

Kernel uploaded, not a flashable zip, use install image from TWRP, or flash with fastboot...

I did not menage to do anyting,still stuck and waiting for H90130d kernel
Pozdrav druze

Ubaceno. Pozdrav druze, srecno


PS. Don't forget, zip is not TWRP flashable, extract boot.img and flash it with fastboot, or from TWRP, with Install Image option


PPS. Donates are not required, but more than welcome Enjoy ( https://paypal.me/stojshic )

 

[jakovdi]

@stojshic thanks but I did not manage to flash the 4 core kernel on my H901 t-mobile (H90130d ):crying:
Seems that some fastboot commands are disabled in nougat(h901 t-mobile) and that why we can't flash 4 core kernel boot file on this model h901 t-mobile.
Any advice?:crying:
unlocked bootloader
C:\adb>fastboot oem unlock
...
(bootloader) Device already : unlocked!
OKAY [ 0.016s]
finished. total time: 0.016s

C:\adb>fastboot flash boot boot.img
target reported max download size of 536870912 bytes
sending 'boot' (40960 KB)...
OKAY [ 1.201s]
writing 'boot'...
FAILED (remote: unknown command)
finished. total time: 1.217s

C:\adb>fastboot boot recovery.img
downloading 'boot.img'...
OKAY [ 0.952s]
booting...
FAILED (remote: unknown command)
finished. total time: 0.967s

Is possible to downgrade to older version like mm/lp, or after nougat we can't downgrade(anti rollback)?
If someone with h901 t-mobile version successfully manage to flash the 4core kernel please provide some advise. @hemal_4404,@ .hack// did anyone manage to flash the new 4 core kernel successfully?

 

[stojshic]

@stojshic thanks but I did not manage to flash the 4 core kernel on my H901 t-mobile (H90130d ):crying:
Seems that some fastboot commands are disabled in nougat(h901 t-mobile) and that why we can't flash 4 core kernel boot file on this model h901 t-mobile.
Any advice?:crying:

C:\adb>fastboot flash boot boot.img
target reported max download size of 536870912 bytes
sending 'boot' (40960 KB)...
OKAY [ 1.201s]
writing 'boot'...
FAILED (remote: unknown command)
finished. total time: 1.217s

C:\adb>fastboot boot recovery.img
downloading 'boot.img'...
OKAY [ 0.952s]
booting...
FAILED (remote: unknown command)
finished. total time: 0.967s

Is possible to downgrade to older version like mm/lp, or after nougat we can't downgrade(anti rollback)?
If someone with h901 t-mobile version successfully manage to flash the 4core kernel please provide some advise. @hemal_4404,@ .hack// did anyone manage to flash the new 4 core kernel successfully?

Sorry, I can't help with that... I don't own V10 anymore, so can't even try anything... If you roll back to previous version of android, that would probably help, but I'm not sure if T-Mo have anti-rollback... You'll have to search... I will see if I can make a version for LGUP maybe, but it's probably still impossible...
@jakovdi - and everybody else having problems flashing boot.img on nougat, lets try fixing it
Try flashing TWRP using this method, if it works we should be half way there...
https://forum.xda-developers.com/tmobile-lg-v10/general/root-h901-nougat-t3773942

 

[jakovdi]

Sorry, I can't help with that... I don't own V10 anymore, so can't even try anything... If you roll back to previous version of android, that would probably help, but I'm not sure if T-Mo have anti-rollback... You'll have to search... I will see if I can make a version for LGUP maybe, but it's probably still impossible...

@jakovdi - and everybody else having problems flashing boot.img on nougat, lets try fixing it
Try flashing TWRP using this method, if it works we should be half way there...
https://forum.xda-developers.com/tmobile-lg-v10/general/root-h901-nougat-t3773942

Good news i manage to install twrp with that method on my h901 t-mobile(nougat H90130d),bad news is that got this error when try to flash the 4core kernel.
--------------------
"Invalid zip file format"
Error instaling zip file
--------------------
usb debugging enabled/ bootloader unlocked,i also try to flash the 4core kernel from the sd and internal storage and also redownload the file and try again but got the same error "Invalid zip file format" Error instaling zip file.

 

[stojshic]

Good news i manage to install twrp with that method on my h901 t-mobile(nougat H90130d),bad news is that got this error when try to flash the 4core kernel.
--------------------
"Invalid zip file format"
Error instaling zip file
--------------------
usb debugging enabled/ bootloader unlocked,i also try to flash the 4core kernel from the sd and internal storage and also redownload the file and try again but got the same error "Invalid zip file format" Error instaling zip file.

Yeah, because the zip Is not twrp flashable. Go to twrp, choose install, android you should have "install image" or only "image" button on the right, choose that, and select image file you extracted from the zip file

 

[jakovdi]

Yeah, because the zip Is not twrp flashable. Go to twrp, choose install, android you should have "install image" or only "image" button on the right, choose that, and select image file you extracted from the zip file

omg it worked:laugh: @stojshic THANK YOU
ziv zdrav bio 1000 godine prijatelju hvala.