So, I've been out of the switch loop for a quite a while now, and remembered that I made a NAND backup of my switch back when I was on 5.xx fw. I just checked today and noticed my switch is currently on 6.0.1 and didn't know about it. I wanted to know that if I were to restore the backup I have, will it revert it to the previous fw, and if so, am I at risk of burning any fuses?