Instructions
Turn off your PSP 2000 by sliding its power button up for five seconds..
Slide the UMD (universal media disc) door release button to the side to open the UMD drive door. Remove any UMD game you may have inside of the PSP 2000.
Look at the motherboard on the inside of the UMD drive. At the top-right corner of the UMD drive, you will see the type of motherboard on your PSP 2000.