SamyGO

Omg!!! Downgrade of B-FIRBP7WWC is working!!!

Thank you and bless you arris!!
Best holiday gift!

Hi arris,

Do you think there is any chance that a downgrade of B-FIRBP7WWC (D7500) to 1005 will ever be possible?
A few months ago when I first asked about it there was no hope but now, as I see some new development in this area I'm hoping again.

Happy holidays!

arris69 wrote:

chicky2207 wrote:Hi, do you planning downgrade firmware for HT-D5550?

Thanks for reply.

no, no plans for "downgrade" for FIR* based devices.

Hi arris,

I haven't lost hope yet that I can downgrade my d7500 therefore I must ask: no plans means no chance to ever do it or no plans so far?

Thanks!

Thanks a lot for the explanations... I guess it's bad luck for me now (+ a good lesson not to upgrade fw when everything works...)

Hello, ... Corresponding files with extension .vs and cs (length key 256/HEX) should match with the key is located at the end of each file; exe.img.sec, rootfs.img.sec and Image.sec. .... at the end of the .sec files are no keys, this are signatures (sha1 digest) of the decrypted image. .vs is the ...