Okay, so I've semi-bricked the PSP when trying to do custom waves. I can still run recovery, but when I used the PSP Brick Fixer it gave me the error "Directory is not empty". I previously downloaded a systemctrl.prx file and put it in a reflash folder, which I then flashed to using advanced > flash systemctrl.prx (1.5). The next step that I'm supposed to be doing is to use the third option in the recovery menu, but I've been getting a blank screen so far (Waited for about 15 minutes so far). Is there a step that I've missed?