Sony officially confirms PS3 firmware 2.4 features, in-game XMB included - DarkZero
PS3 Update 4.88 June 1, 2021 Firmware Patch Released - MP1st
PlayStation 3 firmware 3.00 details - CNET
How To Jailbreak PS3 Official firmware 4.87 Slim & Super Slim Step by Step For Beginners - YouTube
PlayStation 3 PS3 250GB Console Bundle 10 Games Tested 4.84 Firmware PLEASE READ | eBay
PS3: Official Rebug 4.81-REX/D-REX with COBRA 7.31 released - Hackinformer
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 Gets Firmware 3.30 Upgrade - SonyRumors
Surprise! There's a new PS3 firmware update - here's what patch 4.88 does | TheSixthAxis