Problem after downgrading.

Hi So I am having a problem after downgrading with my bluray drive. I am able to update from 3.55 cfw to 4.XX cfw. But I am unable to downgrade because I get an error saying corrupted data so I have to use my dongle to downgrade and reflash ect. My bluray drive just spins the disk.(I took it apart and its open now so I could see what was wrong with it) The Laser is going through the disk like normal (Can see dot bright and clear nothing wrong there) But now when I try to run any homebrew app (Toggle qa) Multiman It gives me a blackscreen. I have also downgraded to a 3.55 using a bd emu and tried running homebrew samethin so its not my logic board or the bluray drive. I have tried reflashing it. Doesnt work. So what Im thinking now is going back up to 4.40 or 4.41 not sure (If you could suggest one would be great) And then seeing if my bluray works and then reflashing it down. So im kind of stuck right now so if anyone has any suggestions it would be great! Thanks

EDIT FOR ADDITIONAL INFO
On Cechh model using e3flasher. Also when I did the QA toggle with the bdemu I used the extra one first didnt work so I switched back to regular