I will be getting a fat PSP from my brother. It is running firmware 2.70 (official) so I'm interested in downgrading it to firmware 1.50 then go to one of the M33 cfw from there. After searching for the necessary guides and files, I have a few questions that hopefully you guys can help me out.
1) Should I update the PSP to 2.71 or 2.80 before downgrading? There appears to be downgraders for both firmwares (none for 2.70) so which firmware is safer to downgrade from?
2) The second issue is whether my board is TA-082 (or higher) since there are different downgraders for TA-082 and non TA-082 boards. I used this picture to determine whether I have the TA-082 board: http://img421.imageshack.us/img421/6...2check1eh0.jpg
Much to my surprise, the board has only "R10-1" on the right hand side. This does not match the information given in the picture for identifying TA-082 board. Do I have a TA-082 (or higher) board?