I have the white version of this flash cart (http://www.r4isdhc.com) (the 2013 version) but it doesn't work on my 3ds XL version 6.2.0-12E. This is the only one available in my area and the shop keeper even tried updating it through another DS by downloading the new update.
Does this cart not support version 6.2.0-12E? If not, when will it?
Does this cart not support version 6.2.0-12E? If not, when will it?