PS3 in recovery mode - dont have official ps3 controller. : r/ps3hacks
PS3 recovery mode: without controller, not working
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Tutorial) Wie man in den Recovery Modus gelangt (inklusive Video) - PS3/PS4 Anleitungen - xboxhacks.de - Deutsches Xbox 360 und One Forum für News, Hacks & Co.
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Restore File System | PS3 Safe Mode / Recovery Menu | Video WalkthroughPS3Blog.net
Restore Default Settings SONY PlayStation 3 Super Slim, how to - HardReset.info