Thread: How to spoof your CFW PSP 5.00 M33-xx version to a PSP 5.50:

1. Boot your PSP and hold the R trigger. This boots to the CFW recovery menu. It should look like this:

———————————-

M33 Recovery Menu
Main menu

Toggle USB
Configuration ->

Run program at /PSP/GAME/RECOVERY/EBOOT.PBP
Advanced ->
CPU Speed ->

Plugins ->

Registry hacks ->

Exit

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2. Go to Configuration

3. Then go to XMB USB Device (currently: Memory Stick) and hit X until it shows: Flash 0

4. Then go down to Use version.txt (currently: Disabled) and hit X to Enable it.

5. Then go to Back and then Exit. Your psp will reboot.

6. Connect your PSP to your PC.

7. Go to your PSP’s memory stick in My Computer (it should show as Memory Stick)

8. Once in your memory stick, go to the VSH folder, then to the etc folder.

9. In here will be a version.txt. First we will need to make sure its not read-only, right-click on the file and go to Properties and uncheck the Read-Only attribute and hit OK. Now open the version.txt file, it will look like such:

Code:

release:5.00:
build:2740,0,3,1,0:builder@vsh-build6
system:46876@release_500,0×05000010:
vsh:p6264@release_500,v46652@release_500,20081010:
target:1:WorldWide

10. All we need to do here is to change the release:5.00: to release:5.50: and then save the file.

11. I would also reboot your PSP and go back into the recovery menu and change the XMB USB device back to Memory Stick afterwords.