Now that the system core is updated, we patch it to run homebrew and backups again.

Connect your PSP to the PC and open the PSP/GAME/ directory.

Furthermore, 3.52 M33 often runs in a hybrid 1.50 kernel mode. Jumping directly to 6.60 breaks the "landing zone" for the flash0 files. Therefore, we must use a : Go to 5.00 M33-6, then to 6.60 PRO.

On your PSP, navigate to Settings > USB Connection and ensure it's set to USB Mode .

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

Before installing modern CFW, you must move from your current legacy CFW back to the official 6.60 base.

By following this guide, your PSP 3.52 M33 will be brought up to speed with the best custom firmware available, allowing for a much better user experience.

Follow the instructions to flash the firmware. Once completed, press Cross (X) or Circle (O) to shut down or restart the console. Your system software will now read . Step 3: Upgrading to Official Firmware 6.60

How to Upgrade Your PSP from 3.52 M33 to 6.60 Custom Firmware

Many M33 users encounter an error stating their version is 9.90, preventing updates. This was a "spoof" meant to stop Sony from forcing official updates. Completely shut down the PSP.

Psp 352 M33 Upgrade To 660 -

Now that the system core is updated, we patch it to run homebrew and backups again.

Connect your PSP to the PC and open the PSP/GAME/ directory.

Furthermore, 3.52 M33 often runs in a hybrid 1.50 kernel mode. Jumping directly to 6.60 breaks the "landing zone" for the flash0 files. Therefore, we must use a : Go to 5.00 M33-6, then to 6.60 PRO. psp 352 m33 upgrade to 660

On your PSP, navigate to Settings > USB Connection and ensure it's set to USB Mode .

Copy the EBOOT.PBP file into the PSP > GAME > UPDATE folder. Now that the system core is updated, we

Before installing modern CFW, you must move from your current legacy CFW back to the official 6.60 base.

By following this guide, your PSP 3.52 M33 will be brought up to speed with the best custom firmware available, allowing for a much better user experience. Jumping directly to 6

How to Upgrade Your PSP from 3.52 M33 to 6.60 Custom Firmware

Many M33 users encounter an error stating their version is 9.90, preventing updates. This was a "spoof" meant to stop Sony from forcing official updates. Completely shut down the PSP.