PS3 Firmware 4.46 Released To Fix Issues Brought By Previous 4.45 Malfunction
PS3 firmware 4.46 released to fix 4.45 bricked consoles: How to install it
PS3 Custom Firmware
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