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[How To] Downgrade Slim PS3 from 4.76 to 3.55 Firmware Using E3 Flasher Tutorial (Part 1 of 4) - YouTube
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How To] Downgrade Slim PS3 from 4.76 to 3.55 Firmware Using E3 Flasher Tutorial (Part 4 of 4) - YouTube
Is it possible to downgrade a PS3 super slim to an older software? My PS3 is on the latest official version (4.87) and not jailbroken. - Quora
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Recently got a PS3 (CECH-3004A | FW 4.70) can I get Homebrews to work? | GBAtemp.net - The Independent Video Game Community
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PlayStation 3 Model Guide - SHOP01MEDIA - console accessories and mods, retro, shop - One Stop Shop!
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