G day, I have bought the mppt 20/100. I have added the device to my phone and can connect to it via the app. Once it has connected it shows me 3 options only. If I click to change the pin I “think” it works, but not sure as there’s is no obvious change. if I try to change the name on my android phone and on my iPad it crashes the app. If I hit to update the firmware it opens a blank firmware library page. Both my android phone and my partners iPad render the same result. What am I missing here? I have power cycled ever which way, removed apps etc and I always end up with the same result. I am connected only to a battery as I am bench testing. A solar panel will come later once I get this talking to my phone correctly.