When it's showing flashing green... does it hold position as if in GPS mode?
from the DJI FAQ... see note 3
from the DJI FAQ... see note 3
How do I determine that the GPS module is in working condition?
1. Please check if there are buildings that could be blocking the satellite signal. GPS needs an open area to work.
2. Put the TX switch “S1″ to the top position, if there is a mode light blinking such as green single flash (or double flash), it means that the GPS is working correctly.
3. After power on, if you have seen the red light flashing one, two or three times indicating the number of satellites locked, it means that the GPS works correctly.