Okay this is for everyone with psp 3000's that are on OFW 6.20. Do not try this on a psp go! These links will teach you how to downgrade your psp 3000 to OFW 5.03 so you can install chickhen R2. Your probably wondering why you should do this since you already have 6.20 TN-B HEN. The reason is simple. It's because chickHEN R2 is fully complete while 6.20 TN-B HEN isn't. Meaning it can do much more stuff. Like playing just about every psp iso/cso up to ofw 6.31 as well as ps1 games. Here are the links. first you'll need to be running 6.20 TN-B HEN, get that here http://pspslimhacks.com/6-20-tn-b-hen-rele...-6-20-tn-b-hen/ here is the 5.00 version.txt (you'll need this) http://www.fileserve.com/file/DSNrXed here is the OFW 5.03 http://www.psp-hacks.com/file/1645 next follow this video tutorial exactly!!! http://www.youtube.com/watch?v=q1007hhMyiA...player_embedded Now after you've downgraded, install chickHEN R2 chickhen R2 download http://www.megaupload.com/?d=CF10B2H0 read next post.