Psp 352 M33 Upgrade To 660 «Limited Time»

Check system information: it should now show "System Software 6.60" (no custom suffix).

Put the official EBOOT.PBP file into the folder: ms0:/PSP/GAME/UPDATE/ (create the folders in all caps if they do not exist).

If you attempt a direct update, you will almost certainly encounter the infamous DADADADA error or a system conflict. psp 352 m33 upgrade to 660

Before starting, gather the following requirements:

Troubleshooting: If error 0x80020148 occurs, enable "No-UMD" mode in Recovery → Configuration. Check system information: it should now show "System

Your hardware is now completely modernized. You can take advantage of several modern conveniences:

Upgrading a PSP from the vintage custom firmware to the modern A standard Memory Stick or a MicroSD to

Ensure it has at least 100MB of free space. A standard Memory Stick or a MicroSD to MS Pro Duo adapter works perfectly.

Check the subreddit r/PSP or the Wololo forums for specific motherboard checks.

Download the files and the Official Sony 5.00 firmware update (EBOOT.PBP) from a trusted homebrew archive.

Copy the EBOOT.PBP file into the PSP > GAME > UPDATE folder.