First off, if you dont have a paired bd rom, you wont be running any apps/homebrew. You will get black screen everytime.
What you need to do is get back to 3.55 CFW. Then after your on 3.55 CFW, you need to get into Factory Service Mode with a PSGrade device like e3 card reader or something like that. Its a dongle that you put a hex file on, then use that to get into fsm. IF you dont have one of these, you need to get one asap because your gonna need it.
Once your on 3.55 CFW (like rogero v3.7) then you can remarry.
My question to you is, do you have a dongle to get into FSM?
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