Can anyone please explain how to upgrade the miner firmware if you can on the "GOLD" edition LA3M's?
You can't in its current state. There are theories that you might be able to short the right pins to put it into program mode. Since there is no upgrade firmware available, no one has tried to figure it out.
I saw in the thread that we are supposed to get some new firmware soon, but not sure if that is for the miner or controller.
For the controller. There has been no discussion about firmware upgrade for the miner.