3.40 oe custom firmware installation

3.40 OE-A is old update to 3.52 M33 from hereI guarantee you this is the easiest and safest 3.40 oe-A installation guide on the net . 3.40 oe –A is a custom firmware by dark alex that is basically like a 1.5 psp with 3.40 compatibility . You can run psp iso’s , cso’s (upto 3.40 compatibility) , psx games , homebrews , and even devhook etc. This installation requires flashing so use at your own