Got this baby. System version is 6.39. Never been hacked. What should I do to hack it? 6.60 or 6.61? Confirmation button is O. Can I switch it to X with Infinity
PlayStation Guide
Console info - How To Easy Jailbreak Any PSP 6.61 CFW... | Facebook
Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
Why do so many people prefer 6.60>6.61? : r/PSP
How to Mod Any PSP on Firmware 6.61 or Lower! - Infinity 2.0 Permanent CFW - YouTube
PSP: Custom Firmwares for Firmware 6.61 possible - Currently being updated! - Wololo.net