Please read the table to see if you can downgrade your PSP® to a certain firmware. If you don't follow the chart you may brick your PSP®.
- How To Install LC/HEN Firmware Tutorial For All PSP® Models
[Steps: 1-6]This Tutorial will help you identify your PSP® motherboard. You first have to install a L/CFW or a HEN from "How To Install LC/HEN Firmware Tutorial For All PSP® Models" tutorial above.
1: Download the included archive.
2: Extract PSPIDENT_0.75.zip file using 7zip or winRAR.
3: Connect PSP® to computer via USB cable.
4: Copy and replace the PSP folder on to your PSP memory stick.
5: Run PSPident from your PSP® game menu.
6: Check & compare your PSP® information to the "PSP® Motherboard Chart" above.
This tutorial is for people that want to downgrade to 6.20/6.35 [This downgrader only works on firmwares 6.31 / 6.35 / 6.38 / 6.39 / 6.60] (Note: If you are on 6.61 or higher your out of luck)
To start select your PSP® to download a OFW: (Note: This is OFW 6.20 because a HEN is available for it)
When you have have finished downloading, You will find a file named EBOOT.PBP.
1: Using your PC, create a folder named "PSP". Within the "PSP" folder, create a folder named "GAME". Within the "GAME" folder, create a folder named "UPDATE". (Folder names must be in all uppercase letters).
MEMORY STICK PSP GAME UPDATE EBOOT
2: Copy the EBOOT.PBP you downloaded to your UPDATE folder.
Now you have to download a downgrader to downgrade your PSP®'s firmware to 6.20 OFW. (This downgrader works only for 6.31 OFW / 6.35 OFW / 6.38 OFW / 6.39 OFW / 6.60 OFW)
Now extract Downgrader.zip file using 7zip or winRAR. You will then find a folder named PSP open it up and you will see a folder named GAME open that up and you will see a folder named Downgrader
Now copy the Downgrader folder to your PSP GAME folder.
MEMORY STICK PSP GAME Downgrader
3: To start the update data. Select either (Memory Stick) or (System Storage) under (Game) from the home menu, and then select . Press the button to start the update.
Then you will see this message. Now you laugh at Sony and Press the button on the downgrader.
After the Sony updater is finished you will get a BSOD, all you have to do is press button.