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How to Jailbreak the PS3 on 4.90 or lower - YouTube
How to Jailbreak Your PS3 on Firmware 4.90 or Lower with Flash Writer (Self-Hosted) - YouTube
the EASIEST guide to Jailbreak PS3 CFW 4.90 (latest version) - YouTube
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How to Jailbreak Your PS3 on Firmware 4.90 or Lower with Flash Writer (Self-Hosted) - YouTube