Softbrick, need to retrieve pictures, xt890 AP Fastboot Secure

[GrogSym]

Hi all,

My RAZR i softbricked almost a year ago. I am determined that I will get my holidays pictures from it... please help me do so!

It gets stuck on the intel page when booting normally, I can access fastboot however I think the phone must be locked. In AP fastboot the options are:

Normal Powerup
Recovery
Factory
BP Tools
Switch Console
Power Off

Recovery will ocassionally take me to the sick looking droid.

When trying through RSD Lite I get stuck at 3/10 "boot_signed", and the phone says "preflash validation failed". I think this may be because the fastboot is locked?

When running through this guide: https://forum.xda-developers.com/showthread.php?t=2390573 unbrick.bat can't find libusb0.dll (possibly a windows 10 issue?).

I can't actually remember what version of Android I was running, however I'm pretty sure it was JB.

If anyone can advise as to what I should try next, or whether I can't recover my pictures at all, then please do get in touch.

Greg

 

[Hazou]

Hi all,

My RAZR i softbricked almost a year ago. I am determined that I will get my holidays pictures from it... please help me do so!

It gets stuck on the intel page when booting normally, I can access fastboot however I think the phone must be locked. In AP fastboot the options are:

Normal Powerup
Recovery
Factory
BP Tools
Switch Console
Power Off

Recovery will ocassionally take me to the sick looking droid.

When trying through RSD Lite I get stuck at 3/10 "boot_signed", and the phone says "preflash validation failed". I think this may be because the fastboot is locked?

When running through this guide: https://forum.xda-developers.com/showthread.php?t=2390573 unbrick.bat can't find libusb0.dll (possibly a windows 10 issue?).

I can't actually remember what version of Android I was running, however I'm pretty sure it was JB.

If anyone can advise as to what I should try next, or whether I can't recover my pictures at all, then please do get in touch.

Greg

First u can try to flash those images manually. The fastboot command then will say a bit more than just that error.
So flash the system and boot image manually.

We can't unlock the bootloader because u will lose all data from the phone.

 

[GrogSym]

First u can try to flash those images manually. The fastboot command then will say a bit more than just that error.
So flash the system and boot image manually.

We can't unlock the bootloader because u will lose all data from the phone.

When I try to flash the boot image through fastboot, I get the following:

C:\Users\Greg\Desktop>fastboot boot boot_signed
creating boot image...
creating boot image - 11536384 bytes
downloading 'boot.img'...
OKAY [ 1.432s]
booting...
(bootloader) Command restricted
FAILED (remote failure)
finished. total time: 1.626s

Presumably because this is restricted (ie no root)?

When I try the image file I get:

C:\Users\Greg\Desktop>fastboot flash system system_signed
(bootloader) Variable not supported!
target reported max download size of 104857600 bytes
Invalid sparse file format at header magi
error: write_sparse_skip_chunk: don't care size 733045500 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 626995964 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 515375868 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 407782140 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 296858364 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 185189116 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 74765052 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 8956 is not a multiple of the block size 4096
sending sparse 'system' (90258 KB)...
error: write_sparse_skip_chunk: don't care size 733045500 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 733045500 is not a multiple of the block size 4096
OKAY [ 8.452s]
writing 'system'...
FAILED (remote: Preflash validation failed)
finished. total time: 8.825s

Am I doing something wrong?

 

[Hazou]

When I try to flash the boot image through fastboot, I get the following:

C:\Users\Greg\Desktop>fastboot boot boot_signed
creating boot image...
creating boot image - 11536384 bytes
downloading 'boot.img'...
OKAY [ 1.432s]
booting...
(bootloader) Command restricted
FAILED (remote failure)
finished. total time: 1.626s

Presumably because this is restricted (ie no root)?

Nope, "root" is only a system thingy and is most commonly used in Android when u can access system files while u are on a running system.

In this case the command "boot" is restricted in the bootloader. No way to enable that one for us. U need to use "flash"

When I try the image file I get:

C:\Users\Greg\Desktop>fastboot flash system system_signed
(bootloader) Variable not supported!
target reported max download size of 104857600 bytes
Invalid sparse file format at header magi
error: write_sparse_skip_chunk: don't care size 733045500 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 626995964 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 515375868 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 407782140 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 296858364 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 185189116 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 74765052 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 8956 is not a multiple of the block size 4096
sending sparse 'system' (90258 KB)...
error: write_sparse_skip_chunk: don't care size 733045500 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 733045500 is not a multiple of the block size 4096
OKAY [ 8.452s]
writing 'system'...
FAILED (remote: Preflash validation failed)
finished. total time: 8.825s

Am I doing something wrong?

Are u using the "fastboot" executable from the Android sdk? I recommend in this case to use the "mFastboot" executable.
The mfastboot executable in the RSD-Lite package should work just fine.

Just make sure u are using the latest JB (4.1.2) rsd-lite package.

 

[GrogSym]

Nope, "root" is only a system thingy and is most commonly used in Android when u can access system files while u are on a running system.

In this case the command "boot" is restricted in the bootloader. No way to enable that one for us. U need to use "flash"



Are u using the "fastboot" executable from the Android sdk? I recommend in this case to use the "mFastboot" executable.
The mfastboot executable in the RSD-Lite package should work just fine.

Just make sure u are using the latest JB (4.1.2) rsd-lite package.

Thank you so much for your continued help - I'm afraid I'm no further ahead. I have tried the following:
C:\Users\Greg\Desktop>mfastboot flash boot boot_signed
(bootloader) Variable not supported!
target max-download-size: 100MB
sending 'boot' (11264 KB)...
OKAY [ 1.421s]
writing 'boot'...
FAILED (remote: Preflash validation failed)
finished. total time: 1.799s

C:\Users\Greg\Desktop>mfastboot flash system system_signed
(bootloader) Variable not supported!
target max-download-size: 100MB
Multi-Flash is enabled!
sending 'system' (102400 KB)...
OKAY [ 9.850s]
writing 'system'...
FAILED (remote: Preflash validation failed)
finished. total time: 10.479s

C:\Users\Greg\Desktop>

The phone returns: (...security version downgraded then)
PIV block validation failed
EIV block validation failed for system
Invalid PIV image: system
Fastboot command failed

Does this suggest I am using the wrong image file? CFC_9.8.2I-50_SMI-29_S7_USASMIJBRTGB.xml
I can't see an alternative for a UK phone on 4.1.2

Maybe I could just fly you to my house and you can fix it for me If there is a tutorial that I should be following that I have missed, then please do let me know.

Many thanks again,

Greg

 

[Hazou]

Thank you so much for your continued help - I'm afraid I'm no further ahead. I have tried the following:
C:\Users\Greg\Desktop>mfastboot flash boot boot_signed
(bootloader) Variable not supported!
target max-download-size: 100MB
sending 'boot' (11264 KB)...
OKAY [ 1.421s]
writing 'boot'...
FAILED (remote: Preflash validation failed)
finished. total time: 1.799s

C:\Users\Greg\Desktop>mfastboot flash system system_signed
(bootloader) Variable not supported!
target max-download-size: 100MB
Multi-Flash is enabled!
sending 'system' (102400 KB)...
OKAY [ 9.850s]
writing 'system'...
FAILED (remote: Preflash validation failed)
finished. total time: 10.479s

C:\Users\Greg\Desktop>

The phone returns: (...security version downgraded then)
PIV block validation failed
EIV block validation failed for system
Invalid PIV image: system
Fastboot command failed

Does this suggest I am using the wrong image file? CFC_9.8.2I-50_SMI-29_S7_USASMIJBRTGB.xml
I can't see an alternative for a UK phone on 4.1.2

Maybe I could just fly you to my house and you can fix it for me If there is a tutorial that I should be following that I have missed, then please do let me know.

Many thanks again,

Greg

We can't get around that. The error message indicates that the wrong system or other images are flashed into the device. Sry, I have no clue on how to restore that.

 

[Nerotech11]

Kitkat?

Could it be that failed OTA updates won't allow downgrades?
I have a xt890 that is bootlooping with the very same errors while trying to fastboot flash 4.1.2 en.GB.
I'm coming to the conclusion that the OTA Update partially succeeded and its no longer accepting JB firmware...

We can't get around that. The error message indicates that the wrong system or other images are flashed into the device. Sry, I have no clue on how to restore that.