So I've been trying to get my Old 3DS set up to run custom mods and followed this tutorial to the letter. However, every time I try to run BootNTR, it fails and says that the firmware isn't supported. Unfortunately, my RedNAND is on the most recent Nintendo update, but my SysNAND is still on 9.2. Does anyone have any suggestions on where I may have gone wrong or how to fix it? (I debated using A9LH as an alternative, but I'm not sure how to go about it based on what I completed with the initial tutorial. I'm sorry, this is all really new to me, haha.)