CONSOLE PS3 PLAYSTATION 3 FAT FIRMWARE 3.55 80GB+JOYPAD CONTROLLER E CAVI | eBay
How To] Upgrade The PS3 to Custom Firmware (CFW) From 3.55 Offical Firmware (OFW) - YouTube
Connect PS3 to PSN on Custom Firmware 3.55 Kmeaw | Redmond Pie
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Downgradable PS3 Models & Base Firmware with MinVerChk | PSXHAX - PSXHACKS
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How to Hack your PS3 - ConsoleMods Wiki
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