Quote: Originally Posted by dpeddi Originally Posted by I get to unlock the bootloader of my kindle hdx 8.9



Prerequisite: 1[34].3.1.0 < x < 1[34].3.2.4 (as it use the rsa bug)

Rooted kindle



cat /sys/block/mmcblk0/device/manfid

cat /sys/block/mmcblk0/device/serial



create a file unlock.img with following content:

0xmmssssssss

where mm=manfid and ss=serial



encrypt it with my vortox fork of signing tool at



https://github.com/dpeddi/Cuber



./cuber_unlockbl --sign ./unlock.img ./unlock.signed



connect the hdx to a linux box and do following command:



./fastboot -i 0x1949 devices

./fastboot -i 0x1949 flash unlock unlock.signed

./fastboot -i 0x1949 reboot



adb shell

idme print

[...]

unlock_code: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAMsv9S[...]WRUFx7FaA==



Regards and thank to all (Hashcode, Cpasjuste, Vortox...)

Hearty congratulations @ dpeddi !!!!Can you let us know which sw ver is this applicable to ?As amazon is again allowing the roll back process with almost no questions asked, if this implies to the downgrade they are allowing its a massive win and breakthrough in HDX DEVELOPMENT (i dont exactly remember the version they are downgrading to - its the one that has been patched with vulnerability)Edit: its 14.3.2.8Edit 2 : i believe the answer would be NO, just compared the version number you mentioned, can there be any possibility for 14.3.2.8 version kindles to get root or downgrade or any thing ?To be honest it would be a shame that just on software version kindle has no future and other software versions haveAgain cheers for your achievement