To do what you want, and more, I suggest you use this All-In-One Upgrading and Downgrading utility.
PSP Upgrading & Downgrading AIO
Cloudy
Hello,
I got a PSP with an original v3.0 upgrade (no custom).
How I can downgrade it back to v1.5?
I got GTA LCS, I know its can downgrade it back to v2.0 - I tryed but i get this message:
"The system software of your PSP
System is version 3.00.
There is no need to update."
Now I found this tutorial :
http://dl.qj.net/Downgrader-for-v3.0...2431/catid/114
But I can't upgrade to v3.3
What can I do?
To do what you want, and more, I suggest you use this All-In-One Upgrading and Downgrading utility.
PSP Upgrading & Downgrading AIO
Cloudy
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