According to some returns, the new update is deployed by Nintendo for the 3DS could be very wrong in the world of linkers.
According to information provided by the Supercard team, it seems that this new system update adds an additional check at a backup chip in this DS/3DS games, most linkers do not integrate chip memory, they would therefore simply blocked. Currently only DSTwo seems to work on this new version 4.4.0-10. If you use a linker and want to continue to use it, be careful not to perform this update! hamato6 Thanks for the info