PS3 - Chapter I - PS3 Downgrade General Information | PSX-Place
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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) -
Downgrading Firmware - PS3 Developer wiki
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PS3: Official Rebug 4.82.2 Lite with COBRA 7.55 released!! - Hackinformer
I purchased a PS3 backward compatible from ebay for a good price and I'm impressed how clean it is. However... It's still on firmware 2.50. Should I update the firmware? : r/PS3
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Sony Pushes PS3 Firmware 3.56 update
PlayStation 4 3.55 System Software Update Live with PS4 Patches | PSXHAX - PSXHACKS
Lost HDD to CFW PS3 Slim | GBAtemp.net - The Independent Video Game Community
HOW TO] Jailbreak PS3 firmware 3.56 - Tutorial + Download L - video Dailymotion