Cube is not giving count of motors

I am using Pixhawk Cube (black) and here2 GNSS GPS. The GPS is not getting locked ( i am trying to lock it inside the building does it affect the lock?) and while doing configuration of pixhawk on Qground it is not giving me the number of motors?
I am facing this problem i want to troubleshoot it in next 2 days. if someone can help me i shall be greatful to him/her.