I purchased a PS3 backward compatible from ebay for a good price and I'm impressed how clean it is. However... It's still on firmware 2.50. Should I update the firmware? : r/PS3
How To Easy Install CFW On PS3 OFW 4.88 For Beginners in Just 14 Minutes - YouTube
Console Gamers Must Know! Here Are the Differences Between PS3 OFW and CFW Version! | Dunia Games
How to install PlayStation 3 custom firmware, run homebrew - AfterDawn
PS3 UPDATE USB FLASH DRIVE PLUG IN LATEST Official Sony FIRMWARE FW OFW | eBay
PS3 Received a New Firmware Update, By the Way | Push Square
Now you can run backup games on the PS3 with OFW 4.70 - Hackinformer
Sony Releases PS3, PS Vita Firmware Updates | PCMag
PS3 Firmware 4.82 released, one year after last update & mere days after 4.81 exploit revealed - Wololo.net
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
PS3 Firmware Update 4.88 Is Out Today, Here's The Changelog