Guida: modifica PSP 1000 e 2000 con firmware 6.39 [Video tutorial]
DOWNGRADE PSP GO 6.35 6.38 6.39 6.60 to 6.39 6.35 6.20 (NO PANDORA) - YouTube
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