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How To Downgrade the Fat PS3 from 4.66 to 3.55 Firmware Using E3 Flasher Tutorial | Welcome to the Underground.
Downgrade-Tool--PS3-/Downgrade Tool (PS3 NOR).vbproj at master · coolshrimp/ Downgrade-Tool--PS3- · GitHub
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Playstation 3 NAND Downgrade guide ( CECHC04 / COK-002 , Teensy 2.0++) | Plamen Todorov's Personal Website
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