Not sure if you'd remember me, but I'm still here.
Some things you might like to know:
- Any PSP you buy now off-the-shelf will be a PSP Slim, which will come with a firmware 3.60 or over.
- Firmwares 3.51 and over require a Pandora's battery and Magic MS to downgrade.
- "Downgrading" nowadays is not usually going to 1.50; instead, it is usually going to a custom version of a recent firmware. E.G., 3.71 M33 is a custom version of 3.71 with homebrew and ISO support - though you can't talk about ISOs on this forum any more.
Hope that helped.
