My iPhone was on airplane mode and yes I was 11 meter ,F mode selected ...1. Your mobile device should be connected to RC
2. Mobile device should have GPS enabled
3. Select multiple flight mode on Go App
4. Select F mode
5. Minimum height should be 10m, though recommended may be 30m
Maybe I forgot the multi flight mode **** .....My iPhone was on airplane mode and yes I was 11 meter ,F mode selected ...