Installed a9lh months ago on my n3dsxl. Haven't used it in a while, decided to update luma. Running luma 6.3.1 and updated to v6.6 with the luma updater. It didnt boot, so I restored the .bak file for 6.3.1 and its still not booting. It just comes to a black screen. and its not the ErrDisp 'svcBreak' error. Use SELECT to get into the Luma configuration menu, and toggle the Developer options to ErrDisp. Attempt to boot. If you see a "svcBreak" in the "loader" process, go ahead with the steps. Otherwise, you have a different issue. Apparently I have a different issue. Help!!!