HELP- UNPACK BOOT.IMG AMLOGIC S805X

[Coool_dud3]

Hello Friends,
i have a zte smart tv box, its an amlogic s805x android 7.1.2 based.
im unable to unpack its boot.img, tried almost everything i could.(im not pro by the way :P )
i want to port custome firmware for my device, and to do so i need to unpack my device boot.img first.
im sharing my boot.img here, please help me to unpack boot file.
thank you.
Peace

[Raxone]

That kernel/boot is encrypted with aml crypt or with aes key you need aes key to decrypt kernel.
On s905x3 and s905x2 is possible to dump aes key but on s805 i thing is no way to dump that key.

[Coool_dud3]

That kernel/boot is encrypted with aml crypt or with aes key you need aes key to decrypt kernel.
On s905x3 and s905x2 is possible to dump aes key but on s805 i thing is no way to dump that key.

thanks for the reply brother.
could you please share me the procedure of link where i can get to try the procedure used to dump s905x2-3 ?
s805x is also from the same family. i would atleast give it a try.

[Raxone]

Base version amlogic-usbdl for s905x3 https://github.com/frederic/amlogic-usbdl
My mod of amlogic-usbdl for s905x2.

[Raxone]

Hello Friends,
i have a zte smart tv box, its an amlogic s805x android 7.1.2 based.
im unable to unpack its boot.img, tried almost everything i could.(im not pro by the way :P )
i want to port custome firmware for my device, and to do so i need to unpack my device boot.img first.
im sharing my boot.img here, please help me to unpack boot file.
thank you.
Peace

Can you send me link of all firmware image or only bootloader and dtb image maybe uart/ttl rs232 uboot log and than i can you say more.

[Coool_dud3]

Can you send me link of all firmware image or only bootloader and dtb image maybe uart/ttl rs232 uboot log and than i can you say more.

aml_logo
boot
bootloader
cache
conf
crypt
dtb
logo
misc
recovery
rsv
system
tee
u-boot

[Raxone]

Like i say encrypted bootloader and boot.
If you bring aes key from sram you only can decrypt bootloader and maybe boot/kernel but to build new bootloader or kernel you need private rsa keys there is no way to bring that keys.
Only you can is try coreelec/libreelec or some linux distro put on sd card or usb.
Rsa keys is not possible to hack or brute force.
Maybe i buy some s805 board just to try bring aes.

System image and dtb is not encypted or locked what is ok.
System image is ext4 what easy to mount from linux and easy to doing some changes.

[Coool_dud3]

Like i say encrypted bootloader and boot.
If you bring aes key from sram you only can decrypt bootloader and maybe boot/kernel but to build new bootloader or kernel you need private rsa keys there is no way to bring that keys.
Only you can is try coreelec/libreelec or some linux distro put on sd card or usb.
Rsa keys is not possible to hack or brute force.
Maybe i buy some s805 board just to try bring aes.

System image and dtb is not encypted or locked what is ok.
System image is ext4 what easy to mount from linux and easy to doing some changes.

thanks for giving me time brother.
yes i can unpack and modify the system and cache img. i have even customized the stock firmware. i have system and boot img from same board s805x, unpacked that and repacked using stock file_contexts bin. system booted successfully but after 10 to 15 seconds it reboots.
is there anything else which i should try to fix reboots?
which files should i copy/paste from stock to port?
thank you again brother.