Psp 352 M33 Upgrade To 660 !link! -

Preparation

1. Check Your Current Firmware and Kernel: Ensure you are on M33. The PSP-352 is typically capable of running custom firmware.

2. Understand the Benefits and Risks: Upgrading to 6.60 (or any custom firmware) allows you to run more homebrew and possibly have more features. However, it might also make your PSP more vulnerable or incompatible with certain games. psp 352 m33 upgrade to 660

3. Backup Your Data: Before you start, make sure to backup your PSP data. Use a Memory Stick Duo to save your game saves, pictures, music, and any other important files. Preparation

What about 6.61?

6.61 exists, but 6.60 PRO-C remains the gold standard. It has 99.9% compatibility with everything, including 6.61 games via version spoofing. Stick with 6.60. Check Your Current Firmware and Kernel : Ensure

3. Convert Old Saves (If Necessary)

Some very old saves from 3.52 M33 may show as “Corrupted Data” on 6.60. Use MagicSave or Savegame Deemer to re-decrypt and re-encrypt them for 6.60.

1. Abstract

The PlayStation Portable (PSP) homebrew scene underwent a significant evolution between 2007 and 2011. The 3.52 M33 custom firmware (CFW) by M33 team represents the "middle ages" of PSP hacking, while 6.60 PRO-C represents the mature, final standard. This paper documents the procedural challenges, dependency resolution, and risk mitigation strategies required to safely upgrade a legacy 3.52 M33 device to modern 6.60 CFW without bricking the device.

For PSP-1000 & 2000 (non-v3) – Permanent patch:

1. After PRO installation, run CIPL Flasher.
2. Accept warning – writes to flash0:/kd/ipl.bin.