Hi, I'm doing a9lh for a O3DS and was wondering on this part. The previous guide require you to use Hourglass9 to restore the NAND.min(keep a9lh), however the new guide tells you to update directly from 2.1. I go into settings and see Ver 2.1 instead of Sys 2.1 even though I have the Luma option to show Sys ticked. I can go into both Luma config and Hourglass9 at this point. Is it safe to update directly from 2.1?