reverting patch on bkpps3???

hi! just got a 3.56 min factory ps3 that some other guy tryed to downgrade and know is brick. the idea is that i might not get the original dump file, and if i made a backup it will be patched (that is what causing the brick). so from the patched bkpps3 can i get the original one in order to patch it with 3 musketieers patch?

P.S i dont know if the dump was verified before it was flashed.
************* [ - Post Merged - ] *************
@baileyscream @playerkp420 @Sarah1331 any idea on this?