I had already used 3ds.guide to take care of an old 3dsXL and it went perfectly fine. I picked up a N3dsXL which was on FW 10.7.0.32U. Everything was going fine until loading arm9loaderhax. Went to http://2xrsa.3ds.guide and the screen glitched. I pressed select as the troubleshooter said, but it got stuck there. I waited a few minutes, and nothing happened. I powered down...then I get failed to mount CTRND. I can boot into the Luma settings, and I can also boot into hourglass, but when I try to restore my NANDmin.bin that I had created, it must have somehow gotten corrupted because it will fail (Not a proper NAND backup for this 3DS). I have checked the microSD for errors, but it comes up clean. Heh, I picked up this extra so my kids could both play XLs...so I am hoping it's not a nice paperweight. I have read up and down for hours now, and the only solution I see is to run the NAND backup...help!