Your best bet is to recover to 1.50 FW here
http://www.psp-hacks.com/file/1141 and when you get back to 1.50FW just use the patch from M33 and update back to 3.52M33 then install # 4 update. after that Make A Backup Of Your Flash.. I don't like using other peoples flash0 as I bricked then. Thank god I have the pandora to recover back to 1.50Fw
