I can find info online about the cartridge serials but I am trying to figure out if there is a correlation between 3ds XL console serials and their region. Long story short there is an as-is 3DS XL system listed on e-bay that I was considering, but the region is not listed (it was listed as region-free, which to my knowledge is BS: the 3DS is PAL, NTSC, or NTSC-J). Normally you can tell the region of the console by looking at the firmware version; it'll have a little E, U, or J at the end of it. However this particular system has a bad top screen, so that's not possible. (Probably why the seller did not list the region.) Hence why I am looking for alternative ways to determine the region. Any help is appreciated.