Alright, dammit. I tried.

I got the updates working and everything, but when I hit X to update to 5.00 I dropped my PSP and the damn battery fell out.

I'm stuck with a brick now, and I don't have a pandora. Recovery mode doesn't work because I don't have USB cable, as I am using a Sony Camera Adapter (The kind you use to process photos, the memory stick goes directly in it)

Big question: Can I use recovery without a USB cable?

I honestly don't want to buy one, but having working electronics instead of junk laying around would be nice.