The only official build of XBMC support on the iMX6 and M6 devices are 12.x (Frodo). Some other devices we sell come with Gotham (v13), and when XBMC is renamed Kodi and the next build (v14) (also called Kodi) is released, we'll hopefully either have versions for the RockChip based devices or models that come with it pre-installed. Some people have had luck with Gotham and disabling hardware accelerations on their iMX6, but if problems occur, the first support step from us would be to switch back to Frodo.