How to get PS3 Firmware update 4.89 for installing, Google and Edge covered in the video - YouTube
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 4.30 firmware update, narrowing release time – Product Reviews Net
Firmware 4.83 Is Available for Sony PlayStation 3 Systems - Update Now
PlayStation 3: The Final Hack? | Eurogamer.net
PlayStation 3 Owners Revolt Over Firmware Update 4.30 | Push Square
PS3 System Software Update (v4.30) – PlayStation.Blog