PSP/Remove GEN Version Protect


 * 1) Open VSH menu by clicking on the Select button from xmb(main psp menu)
 * 2) Change USB device to Flash0
 * 3) Connect your psp to pc
 * 4) Navigate to \vsh\etc\
 * 5) Open version.txt using notepad or wordpad
 * 6) In the first line change the 9.90 to 5.50 and save.
 * 7) Disconnect your psp from the pc and change the USB device back to Memory stick in vsh menu