assalamualaikum & goodday,

what exactly you want to do???
unbrand??

the cust pack must the same with the fs image(.fbn)

eg....

oflash--->>>k800i fs cent europe.fbn,must go with same cust pack...
ofs----->k800 fs europe cust pack.zip and unzip it....starting off with tpa..just copy the whole folder and flash it

BR