Help! My ph 3 pro is going in and out of gps mode

[Janine]

Does anyone know why my phantom 3 pro is going in and out of GPS mode when i'm video taping? I am not sure how to correct this issue.

 

[Meta4]

Does anyone know why my phantom 3 pro is going in and out of GPS mode when i'm video taping? I am not sure how to correct this issue.

If there is no fault in the unit, the most common reasons are either:
The Phantom's view of the sky is blocked .... or
There is a bad compass calibration that causes a conflict between the compass and GPS data causing the Phantom to ignore GPS data and go into atti mode