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Okay so I'm having trouble. My brother downloaded an update that my custom firmware doesnt support (4.86) and I need to downgrade to (4.85) or at least make my ps3 workable again.
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Chapter I - PS3 Downgrade General Information | PSX-Place
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HD] How To Downgrade Your PS3 (To 3.41 Firmware) - YouTube
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Chapter I - PS3 Downgrade General Information | PSX-Place
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TUT] How To Downgrade w/e3 flasher to any CFW | ConsoleCrunch