I updated my firmware to 8.0.1 using ChoiDujourNX (which I've done before for 7). I did a NAND dump beforehand, updated firmware, and booted back into SXOS (v2.5.3). I can book back into SXOS, but it won't boot into either CFW or OFW - all I get is a black screen (backlit, though, so still...