Ok, so this is what happened: After having updated the system, the n3dsxl rebboted, but then only black screen showed up. After waiting for more than 10 minutes, nothing happened so I turned it off. I tried removing and returning the battery and sd card but nothing happens. I tried to update the arm9 and luma to no avail since of of the steps involved removing the sd card and turning the unit on again. It didn't work since the unit just flashes blue, but then fades quickly. And whenever the unit is supposed to reboot, it doesn't do it and just turns off or hangs. Unfortunately, I have no system backup for the n3dsxl. I tried searching around the net and one post said that maybe I don't have sysnand_original.bin that's why black screen occurs. I don't remember what firmware the unit is on and would want to attempt to reformat my sd card as a last resort. I'm sorry for being a noob, and am humbly requesting assistance from the community. Thank you.