hello everyone
i'm not sure if i'm posting in the right place .. sorry if i'm not

i messed with my vodafone 845, upgraded it with the wrong upgrade and now i can't upgrade it back anymore
keep getting " upgrade failed " after the unpacking proccess

i reformatted my sd card, downloaded the update file again, tried normal and force upgrade, nothing worked
the original update file which worked fine called V845 V100R001C02B227 (Vodafone Egypt)

can anyone help me out ?

thank you