Yep. I updated my PSP to 2.71 used the downgrade program to downgrade psp to 1.50
I saw a video on that.
I found a forum that shows you how to downgrade
http://www.hackmypsp.com/forum/viewtopic.php?p=3740
I saw a video on that.
I found a forum that shows you how to downgrade
http://www.hackmypsp.com/forum/viewtopic.php?p=3740