However its very easy to re load the custom firmware on a 88V, PSP 3000, PSP Go or E1000. Something to note is that you can only permanently install this firmware on a PSP 1000 or a PSP 2000 that is not an 88 v3 version. You can also add new features to your PSP via kernel mode background plugins, for example the ability to take screenshots in games.
All PS1 games are supported, not just games on the PSN. You can also convert your old PS1 games and play them your PSP. This allows you to easily carry around more than one game, and helps to save your PSP's battery as it does not need to power the UMD drive when playing games. When custom firmware is on your PSP you can use emulators, homebrew applications and even backup your games to the memory stick. Why would i want to install Custom Firmware on my PSP? So you can now follow this guide if you happen to have updated to 6.61.
It's of no benefit to you updating to 6.61 after all this time, however the custom firmware has now been updated to support 6.61. Note: On the Sony released PSP firmware 6.61, some three and a half years after the last 6.60 update. The PSP Custom Firmware 6.61-Pro-C2 will work on all PSP models from the original PSP to the PSP Go and even the E1000, all you need is to be running the official 6.60 or 6.61 firmware to install and use this custom firmware.