A HEN (Homebrew Enabler) is a piece of software that allows you to run homebrew games and backups on your Sony PSP. The goal is similar to Half-Byte Loader but a HEN usually has more compatibility than HBL, as it has access to the Kernel functions.
The Hen you need to download depends on the firmware of your PSP, and is independent of the model (it works on all models, 1000, 2000, 3000, and PSP Go). Click on the firmware installed on your PSP to be redirected to the appropriate download page:
If you have a firmware below 6.20, we suggest you upgrade to 6.20 or higher, and install one of the above.
Still confused? Then CFW For dummies will help you!