how to mine siacoins with it? It's still showing enter bitcoin wallet address.
You have to enter your BTC wallet address since this is mining on NiceHash pool and you also have to enter the Sia benchmark speed manually.
Importantly, do not confuse H/s with MH/s when inputting the speed, 1.200 GH/s = 1200 MH/s = 1200000000 H/s