Go to Settings System Information and see what: Congratz!
You have successfully installed Custom Firmware (CFW) on your PSP.
is not good to update to official PSP firmware and no need to update if you are able to play games on it.
well this is where you will need to go to PSP Custom firmware Homepage to download a PSP Custom Firmware and Tutorial Guide for Pandora Battery for your PSP .
Sadly, we’ll need to have firmware 1.50 to install.