Are you sure you hardmodded correctly? Your soldering looks different compared to the one found on this guide.
http://gbatemp.net/threads/tutorial-noob-friendly-nand-dumping-2ds-3ds-3ds-xl-n3ds-n3ds-xl.414498/#newxl
His Github account isn't really filing me with confidence, so far only two commits (both were fixed though) and no actual contributions to the code base. Please prove me wrong if evidence is evident