Console sony Play Station 3 PS3 Slim CECH-3004A 160GB Firmware 4.90 Pre-owned | eBay
How to Jailbreak Your PS3 on Firmware 4.90 or Lower with Flash Writer (Self-Hosted) - YouTube
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How To Jailbreak Your PlayStation 3 (PS3) On Firmware 4.89! - YouTube
$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
Downgradable PS3 Models - Wololo.net
PlayStation 3 - Wikipedia
Sony shocks world and announces PS3 super duper Slim | Eurogamer.net