Thank you for downloading 4.01 . Please be sure
to read through the readme thoroughly for proper installation.
A PSP running version 3.52 M33-3 or HIGHER.
78% Battery Charge
Kernel Mode set to 3.xx
1. Connect PSP to computer VIA USB and put it into USB mode.
2. Double click 4.01 M33 Easy Installer.exe.
3. Select your PSP's drive letter (eg F:/, G:/)
4. Select Install.
5. Upon completion, on the PSP, go to GAME -> Memory Stick -> PSP Update ver 4.01
6. Press X.
7. Follow on-screen instructions.
8. Once completed, you are now at ver 4.01 M33, ENJOY!