To my knowledge, while there are temp-CFW's for pretty much any PSP up to and (the last OFW release up to this point), the latest. Here are the instructions on how to upgrade your PSP to OFW so you to x :\PSP\GAME\UPDATE (x is your memory stick or the PSP Go's. Help me upgrade my psp Go on Pro -A to Any b8 version! way was to upgrade to ofw then downgrade to and install pro b8 to. Find download links for PSP Official Firmware below. Sony OFW For PSP //, Download from adopteesofcolor.org (direct link) · The PlayStation Portable system software is the official firmware for the PlayStation Portable. . , November 24, System Changes. The Hot Shots Golf. PSP OFW incoming. by wololo · November 24, Sony announced an upcoming release for a new firmware very soon. This firmware will add. Check out the latest system software updates for your PSP (PlayStation Portable) system. Know more about the download and update procedure in detail. PSP Custom Firmware PRO-B4 - Sony PlayStation Portable (PSP) This CFw has works on Sony firmware (OFw) to lets users play.