jump to navigation

PSP 3.90 M33 Custom Firmware Upgrade May 29, 2008

Posted by Jeffrey Vergara in : Sony PSP, Tutorials , add a comment

You must already have custom firmware installed on your PSP.
To check if you have CFW go to Settings » System Settings » System Information.

If you are installing any firmware past 3.60 M33 you MUST UPGRADE first to 3.52 M33, and then 3.52 M33-3 to be allowed to upgrade. The only way to bypass this is to use Despertar Cementerio which requires a Pandora battery.

(more…)