Apologies is this has been used many times before. I have an original White PSP, and it has 5.50 GEN-D2. I thought it was much lower, but apparently I'd updated it in the past... how ever many years. I see people talking about 5.00, 6.02 etc, and having looked at the sticky apparently 5.50 isn't permanent, yet mine is. Which is the best option to get it fully up to date, playing the latest updates? D3, and Prom plug-in? Whilst we're at it, any major apps on the PSP scene? I've not been 'on' it since ... Well, GameFAQs, about 2 years ago. Cheers.