OK, that's better.
To get onto 3.90 M33, you'll need to use some software called Despertar Cementario (aka Universal Unbricker), which will get your PSP onto 3.71 M33 or 3.80 M33, and from either of those you can upgrade to 3.90 M33.
The thing is, Despertar Cementario needs some special hardware to run. This isn't a bug - it's how the software works. This special hardware is a Pandora battery and a Magic Memory Stick. The Pandora Battery can be obtained in two ways -
- Using a PSP with custom firmware already on it to convert an existing battery to a Pandora.
- Buying a Datel TOOL battery from the internet. These are bright red and hard to miss.
And the Magic Memory Stick can also be gotten by two means. Before you do either, however, back up all important data, as everything on your MS will be overwritten.
- Using a PSP with custom firmware to convert an existing MS.
- Using the TOTALNewbi installer to convert an existing MS.
But the Magic MS, for now, is not important, as it's easy to convert your existing MS to a Magic MS. Ignore it for now, and concentrate on getting hold of a Pandora or Datel TOOL battery.