You reached this page because you want to install Total Noob’s Hen 6.20 on your PSP3000, PSPGo, or a PSP2000 with a UNhackable motherboard (ta88v3), and you currently have a firmware 6.3x installed on your PSP (6.30, 6.31, 6.35, 6.36, 6.37, 6.38, 6.39). If you’re not sure of that anymore (psp 2000 owners, there is a chance your motherboard could be hackable), or if you want to check again, or if you have a different PSP model, please go back to the main page of this guide.

Before you install Total Noob’s HEN, you need to downgrade your 6.3x PSP to firmware 6.20. This is easy to do:

Before installing TN’s Hen, you need to downgrade your 6.3x psp to 6.20. To do so, please follow the instructions below.
Important Note: Some recent PSP Motherboards (7g and 9g) cannot be downgraded with this tool. Don’t panic, if this is the case, the downgrader will let you know. If this happens to you, then your only solution is to use Virtuous Flame’s 6.35 CFW 🙂

• The first step is to update your PSP to Firmware 6.39( Although this is not necessary in many cases because the downgrader works on a variety of firmwares, the goal of this page is to be as simple as possible, and have everybody in the same state before starting). If you have a PSP 1000/2000/3000, you can find this firmware here (or alternate link here). If you Have a PSP Go, Download this firmware here (or alternate link here)
• You should now be on firmware 6.39. IF that’s not the case, read the step above
• To downgrade, download some1’s downgrader. If you have a PSP 1000/2000/3000, you can download it here (or alternate link here). If you have a PSP Go, download it here (or alternate link here).
• extract the archive on your memory stick, run the Downgrader from your memory stick, and follow the instructions

Important Note: Some recent PSP Motherboards (7g and 9g) cannot be downgraded with this tool. Don’t panic, if this is the case, the downgrader will let you know. If this happens to you, then your only solution is to use Virtuous Flame’s 6.35 CFW 🙂

Congrats, you should now be on OFW 6.20, now follow the instructions on how to install and run Total_Noob’s Hen