How to Downgrade Firmware?

I updated from Pitools beta .180 to .Pitools .253, and I would really like to go back to the 1.80 beta. But that means flashing from firmware .255 back to whatever firmware .180 uses and I’m not sure exactly how to do that.

There are guides to updating firmware, but none for going backwards that I can find. Could someone kindly list the steps required to downgrade without bricking my headset?

My understanding is that downgrades are not a problem, as long as you also use an appropriate PiTool version (which was released at about the same time as the firmware). All you need to do is flash the firmware as usual. Note that I haven’t done this; I’m just passing along second-hand knowledge.