$35 from the thrift store, never opened up, firmware 4.87 (now 4.88) been used until 2016. needs an opening up now, cleaning and stuff. really happy to get a slim! : r/PS3
PS3 Gets A New Firmware Update - GameSpot
PS3 Received a New Firmware Update, By the Way | Push Square
What Year Is It? There's a New PS3 Firmware Update Out Now | Push Square
PS3 Slim Ditches Backward Compatibility, Linux Support | WIRED
PS3: CFW Evilnat 4.89.3 released - Wololo.net
Downgradable PS3 Models - Wololo.net
Sony PlayStation 3 Firmware 4.90 Download | TechSpot
PS3 Firmware Update Disables “Other OS” Option - Game Informer
How to Jailbreak Your PS3 on Firmware 4.90 or Lower with PS3 Toolset! - YouTube
New PlayStation 3 4.90 firmware update released | GBAtemp.net - The Independent Video Game Community
Optional PS3 Firmware 4.65 Now Available
PlayStation 3 Firmware Update 2.60 | Audioholics
New PS3 firmware update coming June 27 to fix bug in update v4.45 - Polygon