Hello, my son just received an mBot but the app will not control it. At first it said to update the firmware, which I did from my PC. I’ve tried both firmwares available, the Online Version 06.01.107 and the Factory Version 06.01.009. The funny this is that when the USB cable is connected to my PC, but not connected via mBlock desktop app, then the Android app will contract the mBot. But, as soon as I disconnect the USB cable from my PC, the Android app will no longer control it. It says the firmware needs to be updated. Anyone have any ideas as to what is going on?