PS3 UPDATE INSTALL USB FLASH DRIVE PLUG IN LATEST OFFICIAL SONY FIRMWARE FW OFW | eBay
Sony PlayStation 3 PS3 Slim 160GB Console PS3 3.55 (CECH-2503A PS3 Firmware 3.55 711719177364 | eBay
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