[Help] fastboot error "Loading keystore failed status 5 [600] USB init ept @0x8f2270"

[Shlomi93]

[Help] fastboot error "Loading keystore failed status 5 [600] USB init ept @0x8f2270"

ok so i have a device, LG spirit H440n.
and i cant get it work.
if im trying to get into download mode, make a factory reset through the stock "recovery" mode or to boot normally i get this:

boot certification verify
Secure bootung Error!
Cause: boot certification verify.

i just cant do anything.
but i can enter fastboot mode. but when i enter i get the following:

fastboot_init()
Loading keystore failed status 5 [600] USB init ept @0x8f2270
udc_start()
-- reset --
-- portchange --
fastboot: processing commands

from there i cannot apply fastboot comands. if ill send "fastboot devices" i can see the device attached.
if i send "fastboot reboot" i dont get any error but device doesnt reboot, i just see in the device screen a new line "fastboot: reboot".
and if im trying to flash somthing i get an error "failed remote unknown command".
any solution?

 

[Ivan_Meler]

ok so i have a device, LG spirit H440n.
and i cant get it work.
if im trying to get into download mode, make a factory reset through the stock "recovery" mode or to boot normally i get this:

boot certification verify
Secure bootung Error!
Cause: boot certification verify.

i just cant do anything.
but i can enter fastboot mode. but when i enter i get the following:

fastboot_init()
Loading keystore failed status 5 [600] USB init ept @0x8f2270
udc_start()
-- reset --
-- portchange --
fastboot: processing commands

from there i cannot apply fastboot comands. if ill send "fastboot devices" i can see the device attached.
if i send "fastboot reboot" i dont get any error but device doesnt reboot, i just see in the device screen a new line "fastboot: reboot".
and if im trying to flash somthing i get an error "failed remote unknown command".
any solution?

Fastboot commands are disabled on lk user builds (LittleKernel (Bootloader most of qcom devices use)) That means while you can see device in fastboot mode you cant interact with it since it has no commands implemented there is no way around it but why dont you just use lg flash tool? from my experience you should still have access to it also more info about lk here check out page 14 for info about fastboot and how it is disabled, No this doesnt mean we can recompile lk before someone asks since we dont have sign keys

 

[Shlomi93]

Fastboot commands are disabled on lk user builds (LittleKernel (Bootloader most of qcom devices use)) That means while you can see device in fastboot mode you cant interact with it since it has no commands implemented there is no way around it but why dont you just use lg flash tool? from my experience you should still have access to it also more info about lk here check out page 14 for info about fastboot and how it is disabled, No this doesnt mean we can recompile lk before someone asks since we dont have sign keys

can i use LG flash tool when device is in fastboot mode?
how?
and i will take a look on what you send me. thanks!

 

[Ivan_Meler]

can i use LG flash tool when device is in fastboot mode?
how?
and i will take a look on what you send me. thanks!

No not really but you should be able to put it in lg's download mode, That file just documents lk quite interesting stuff but cant help in unlocking bootloader in anything before somebody asks

 

[Shlomi93]

No not really but you should be able to put it in lg's download mode, That file just documents lk quite interesting stuff but cant help in unlocking bootloader in anything before somebody asks

no matter what i send i get the same error. and according the guild that you gave me these commands should work..
i just cant get rid off this error.
any idea??

examples:

C:\Users\Shlomi>fastboot reboot-bootloader
rebooting into bootloader...
FAILED (remote: unknown command)
finished. total time: 0.010s

C:\Users\Shlomi>fastboot continue
resuming boot...
FAILED (remote: unknown command)
finished. total time: 0.008s

C:\Users\Shlomi>fastboot oem device-info
...
FAILED (remote: unknown command)
finished. total time: 0.006s

 

[Ivan_Meler]

no matter what i send i get the same error. and according the guild that you gave me these commands should work..
i just cant get rid off this error.
any idea??

examples:

C:\Users\Shlomi>fastboot reboot-bootloader
rebooting into bootloader...
FAILED (remote: unknown command)
finished. total time: 0.010s

C:\Users\Shlomi>fastboot continue
resuming boot...
FAILED (remote: unknown command)
finished. total time: 0.008s

C:\Users\Shlomi>fastboot oem device-info
...
FAILED (remote: unknown command)
finished. total time: 0.006s

According to what i sent you nothing will work in fastboot actually it just explains every single command is disabled just wanted to clearify fastboot commands are completely disabled

 

[Shlomi93]

According to what i sent you nothing will work in fastboot actually it just explains every single command is disabled just wanted to clearify fastboot commands are completely disabled

goddammit
so im basically fu*ked?

 

[Ivan_Meler]

goddammit
so im basically fu*ked?

Power Off your device
Now press the Volume Up button and hold it
Plug in your device into your computer using a microUSB cable
After a few seconds it should jump into download mode

try to reproduce those steps you should see lg's download mode apear on the screen

 

[Shlomi93]

Power Off your device
Now press the Volume Up button and hold it
Plug in your device into your computer using a microUSB cable
After a few seconds it should jump into download mode

try to reproduce those steps you should see lg's download mode apear on the screen

when im trying to get into download mode i get this again:

boot certification verify
Secure bootung Error!
Cause: boot certification verify.

 

[Shlomi93]

UP

 

[g4spiritmj]

I have the same issue with lg spirit 4g (h440n) on hutchison three uk. boot certification verify in download mode, and then off in 3-4 seconds. fastboot mode stays on without going off, with the same error as the original poster. But no fastboot commands do anything. Annoying because nothing dodgy has been done with this phone, and it is always treated with the utmost care. Need to fix because settings produces "unfortunately settings has stopped", after a factory reset, even in safe mode.