Unofficial 5.00 M33-7 : un petit correctif pour le 5.00 M33-6 - GAMERGEN.COM
Here's my PSPs, top i bought back in 2008 modded and still on 5.00m33-6 but it's missing the kratos battery cover the other my brother got it for me for xmas this
Found my old psp! Dark Alex 5.00m33-6! : r/PSP
Can't update psp 1000 from 5.00 m33 - wololo.net/talk
How To Downgrade PSP 6.60 To 5.00 m33-6 CFW (Tutorial) - YouTube
PSP - Custom Firmware 5.00 M33-6 Released | Exophase Forums
PSP自制固件5.00 M33-6升级包发布-百度经验
PSP 2000 firmware 5.00 M33-6, Video Gaming, Video Game Consoles, PlayStation on Carousell