Using a pandora battery and a magic memory stick I tried to downgrade from 5.03 to 3.71 m33. When the psp boots it crash's just after the "waves" come up. At the time I did'nt know I had a ta-082 motherboard and I dont think it was patched by the magic memory stick.
I can get into removey mode of 3.71 m33 and have tried to recover to 1.50 OFW (bricked it), 3.71 OFW (same wave crash) 5.00 m33 CFW (same wave crash).
I dont get any errors about keys or anything like that.
I have no backup of my nand (I know

).
I have downloaded hellcat's recovery flasher that I found on another post here but I was wondering as I have a ta-082 is that actully going to help?
Any help/advice you could offer would be great.