garmin approach s10 not connecting

so ive been looking forward to this device after seeing all the youtubers rave about it,today is the first chance ive had due to shoulder surgery to set it up.I took it the range today excited to get started but instead ive been completley let down and frustrated by it.Flashes green but does not pick up shot then goes straight into standby mode when on practice mode for the range.

Ive gone and subscribed so i can play the courses and it is exactly the same on this part as well,indoors and outdoors.

Why is this happening? i feel extremley let down by this piece of kit and if i cant fix this issue i will be sending it back and getting my money back.Shame really as i was really looking forward to using this to improve my game.