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
PS3 Update 4.90 Released This Feb. 28 and Brings More of What Players Expect - MP1st
PS3 Firmware 4.90 Download For RPCS3 (Latest Version) - Old ROMs