What is the difference between 3.72 m33 and 3.90 m33 of PSP?

I had my PSP hacked by a friend years ago (he thought it would be a good idea) It's a PSP-1001. System software 3.71 M33-3. I didn't have any internet when my PSP was hacked so there wasn't any noticeable difference that I could see, but then I bought...

follow the upgrade procedures in: http://winterheim.wordpress.com/2008/02/01/390-m33-released-how-to-update/ and copy official 3.90 eboot.php from ...show more

Whats the difference between psp fat, psp slim and psp slim lite and which is the best which psp should i buy?

what the difference between the sims PSP headphones and the couple dollers more PSP slim headphones if you have the PSP slim do you need the PSP slim headphones or what is the best headphones you can get not just for the PSP because you can use regular...

i took out my psp battery pack, and at the back or my battery pack it written "model psp-S110 but on my psp where the battery pack place, it written "SONY® PSP-2001 so ...show more

Also, what is the difference between the composite cable and the component cable for the PSP?

Okay, so what's the difference between a PSP 2000/2001? If so, how can you tell which is which? Also, I broke my LCD screen, so I'm going to buy a new one. I found one that says it is used for a PSP 2000, bit could you use it on a PSP 2001? Sorry for...

I have been looking on the internet for information about the playstation portable (psp). While I was looking, I found out that one psp has a blue screen and the other psp I was looking at had a orange screen I cannot tell the difference is one slim...

I've downloaded a 3.91M33 version of the PSP but I coudn't realize where to paste it on the PSP software since I downloaded it from my desktop computer.