Hi Im trying to downgrade my psp from 2.0 to 1.5 as I said before but I put all the files in ther ight places, but how come when I got to open the tif folder in the photo folder, the psp freezes, thenb shuts itself off. Then I got to downgrade with the 1.5 update and it says no need to update system is already 2.00. Any one know what is causing this? Thanks in advance