Hi guys, thank you for all your help and patience, I do appreciate it.
Here is my flight record below.
And my answer from DJI.
1. The aircraft worked under GPS mode in the flight;
2. T=01:16, h=38.0 m, d=78.9 m, the app warned that there was strong wind;
3. T=08:12, h=119.9 m, d=1453.7 m...