if you have a nand backup restore it with hourglass9.. btw 3ds with arm9loderhax + luma3ds wont boot without sd card.. maybe something wrong with your sd card??
because this secureinfo_A is a public donor and yes my eshop is working for dualnand just make sure the RXTools emunand is on latest firmware just prepare 3 SD cards.. BTW i've already removed the link