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How to Make a Magic Memory Stick With 3.90 M33-2

Creating a Magic Memory Stick can help you install custom firmware on your PlayStation Portable, or PSP. When used with a Pandora battery, the Magic Memory stick works with the PSP just as an ordinary memory card would, but can also install custom upgrades. You can create a Magic Memory stick with any version of the firmware you choose, including the popular 3.90 version. In order to create the Magic Memory Stick, you will first need the Rain MMS maker installed on your computer.

Things You'll Need

Memory Stick Pro Duo between 256MB and 4GB
Rain MMS Maker

Instructions

- 1
  Download the latest version of Rain MMS Maker if you have not installed it on your computer. Download the PSP 3.90 firmware that you wish to install on your PSP; this includes the 3.90.pbp file.
- 2
  Open Rain MMS maker on your computer by right-clicking the program and choosing "Run as Administrator." Insert the Memory Stick Pro Duo into your computer's card reader slot.
- 3
  Select "3.90 ofw/m33-2" as the firmware you want on the Magic Memory Stick from the program's drop-down menu. From the drop-box menu on the right side of the screen, choose the "3.90.pbp" file. Choose the Memory Stick Pro Duo from the drive selection menu.
- 4
  Click on "Make MMS" to create the Magic Memory Stick with the 3.90 version of the PSP firmware. When you use this Magic Memory stick with a Pandora battery, you will be able to download this firmware on your PSP.

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