Well, if there is no solution, they can't make it work magically. At the moment, there is no (known) kernel exploit on 9.3+, and due to NATIVE_FIRM using new encryption on N3DS since 9.6+, it is impossible to update emunand. But isn't that useless anyway, since there is firmware spoofing?
EDIT : And actually, Gateway does support N3DS up to 9.2... (or I don't understand what you're saying)
oops my bad its for N3DS firmware 9.3+ up to the latest firmware, well only time can tell, i just need to put my N3DS on the cabinet for the meantime