How To Downgrade Your 4.90 CFW PS3 *Easy* - YouTube
Ps3 Ofw To Cfw 4.88 Downgrade - YouTube
PS3 Downgrader 3.55 - Consoleinfo
RSoD Fat Ps3 Model CECHPO1 OFW 4.87 | PSX-Place
Now you can run backup games on the PS3 with OFW 4.70 - Hackinformer
PS3 gets new firmware update for version 4.85 | GBAtemp.net - The Independent Video Game Community
How to Go Back to OFW 3.55 in the PS3 Recovery Mode - Our Pastimes
How To] Downgrade Slim PS3 from 4.76 to 3.55 Firmware Using E3 Flasher Tutorial (Part 4 of 4) - YouTube
SANY ilaya - UPDATE!!! PS3 4.50 OFW DOWNGRADE (hardware flasher method)/UNBRICK SERVICE for BRICKED PS3 due to FAILED firmware updates (see guide below) JAILBREAK: -Software: for firmwares 3.55 below (slim and phat) -
JOGi MODS :: PS3 Downgrade Service - Back To 3.55 OFW