PS3 Firmware 4.90 is out! (and you really don't want to update) - Wololo.net
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Sony PlayStation 3 Firmware 4.90 Download | TechSpot
PS3 Firmware Update 4.90 Released, Here's What It Does
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PlayStation 3: Sony releases Firmware 4.86 for their 13 year old console - HFW 4.86 released, SEN Enabler updated & PS3HEN to be updated soon due to no kernel changes! - Wololo.net
Sony Didn't Forget the PS3 on Valentine's Day as System Gets New Firmware Update | Push Square