From which site could we get the latest firmware 3.11 for PSP?And how to install it in the PSP after download?

Answer 1

From Sony of course:

http://www.us.playstation.com/psp/downloads/systemupdate

Instructions is on the site. But here it is:

http://www.us.playstation.com/PSP/Downloads/SystemUpdate/pc.html

Answer 2

3.seventy one m33-2 is a custom firmware..I wouldnt replace it if I were you except you in simple terms like the offical sony firmware which for that you should in simple terms seem up psp on google or once you've instantaneous connection in simple terms click equipment replace it doesnt count number the position to procure it. if it has custom firmware its maximum in all probability an american psp in any case