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If I have a Dex jailbroken PS3 on 4.84, can I still get online even though the latest version is 4. 84? If not, how do I update it without ruining the jailbreak? - Quora
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OLD] How to Jailbreak Your PS3 on Firmware 4.84 or Lower! - YouTube
How To Jailbreak PS3 4.84 OFW PS3xploit HFW - YouTube