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hi im kinda a noob, but i understand some things lol but what i need help with is my DEX ps3 it got RSOD after i used some 4.55 spoofer and so i tried factory serious mode and doing a 3.55 ofw download and i cant, every UPDAT.DAT i put in it says "the data is corrupted (8002F2C5) and i looked online but nothing is helping, can somebody please help me?

You cannot install a CEX on a dex ps3 without first converting Back to cex. Try installing 3.55 dex

i did try the 3.55 dex it still says corrupted when i go to the recovery mode