Thanks for replies.
I got the camera connected now, so hopefully it will work.

I have a Oneplus 3T with Android v 8.0.0. I use Grand Prix Edition v21.2. The Laptimer works fine but I cannot get the Laptimer app to recognize my Hero 5 BE in Video Operation. I connect to the cam fine with the GOPRO app via the wireless. My friend has an Iphone 4 with which he easily connects to ...