Before you buy a PSP for that
special gamer this Holiday season, you have to ask yourself one thing: do they homebrew? If the answer is yes, you better take
care not to get a unit with a firmware over 2.0 — otherwise, no hackie. You can determine the firmware version by
checking for a letter code above the UPC on the bottom of the box.
A-1.50
B-1.51
C-1.52
D-2.00
Unconfirmed
E-2.00 Unconfirmed (likely 1.52)
F-2.00
G-2.01
Using the above list, photograph, and a kindergarten skill set, we can determine that my PSP was version B, meaning it shipped with version 1.51; yet now I control firmware versions as a god would, manipulating them hither and thither! Muahaha!
[Via British Gaming Blog]

