sir psp 1000 5.50 GEN-D3 po ung firmware ko..pag install kna po ung 6.20 updater sabi nya "The system software of your PSP system is version 9.90. There is no need to update..
ano po gagawin ko sir?my mga games po kasi ako hindi malaro..like tekken 6..saka mga ibang cso games..please help po..thank you sir..