You can play games in the UMD drive, you can play games you bought from the store, but when it comes to trying to play games in an unconventional manner, you will hit a road block.
If you try to play a backup copy of a game, activate a non-sony theme, or install an emulator you will find you can’t progress in some manner. Custom Firmware (abbreviated CFW) relaxes restrictions put in place by Sony, and allows you to do much more than you could do before with your PSP.
Ensure you downloaded the correct version for your PSP. So you’ve now obtained an archive of the custom firmware you need for your PSP version.
If you installed a 6.60 CFW on 6.61 OFW you could potentially brick your device. Extract this folder and you should see a folder named either PSP or GAME. Connect your PSP to your computer via USB, and go to USB Connection mode.
Your model number will be on the bottom-side sticker near the barcode. 300X – ‘Brite’ PSP with improved screen and speakers. Hackinformer has an excellent guide to determining the most appropriate custom firmware for your handheld.
Also, you can remove the battery from the battery compartment and it should tell you which model you have on the sticker. The guide process takes details of your handheld and works out whether or not your device supports permanent custom firmware, and what kinds are available for your device.
A permanent CFW is when you turn off your PSP by holding the power switch or running out of battery, and you see the ‘Sony Computer Entertainment’ boot logo, the CFW remains installed.
If you’re happy doing this (especially if you just keep your PSP in stand by), then you can stop here (PRO can delete all CFW files but Fast Recovery).However, your PSP must be able to support this as certain models do not.The Hackinformer guide will inform you whether this process is compatible with your PSP.There is normally a wider choice if you are okay to go down the non-permanent route, but if you intend to use the features of CFW every time you use your PSP, you will need to reinstall the CFW every time you start your PSP, which will become quickly tedious. versions will find that a majority of the CFW choices out there are permanent.Sony fixed up some of the exploits used to make the CFW permanent in the 3000, E3000 series and in special cases some of the 2000, so you may have a tougher job finding a permanent CFW for these.
(X will be a numeric value indicating your PSP region). The choice is normally between PRO, ME and Infinity.