So I'm lost at how to fix this problem. I updated from new 3ds from a9lh to boot9strap following the 3ds.guide. Everything worked out fine so I decided to update my luma with the newly installed boot9strap. Since I still had the old luma updater for a9lh it gave me an error when trying to update so I went to install the new lumaupdater that the website provided once I updated luma with the new cia it completed, but then my 3ds shut off and now it doesn't wanna turn back on even without the sd card it just flashes blue for a split second then shuts off. Update: Ended up reverting back to the old boot.firm, but still wondering why the 3ds doesn't boot without an sd card it should if boot.firm is in CTRNAND right?