I would love to see if this works but step 1 seems to have f*cked up my memory card and my PSP (PSP Street 1002). First, my memory card could not be formatted on my PC, then wouldn't work on my PSP, then stopped working on both. Now my PSP keeps freezing, and now it's frozen and won't turn off (actually turned off 5 mins later). Hopefully I can get this working because I REALLY want to download some software for my PSP. I can already tell this is going to be a huge struggle. Thanks for the guide =)
EDIT: This is pissing me off, first it says ProUpdate is corrupted data, and then it kept connecting and disconnecting over and over again, and now it says it doesn't recognize my computer. I'm so close to throwing my PSP across the room. What am I doing wrong?