UDI R/C DISCOVERY U818A WIFI Operation Manual page 20

(4.1) Trimming Adjustment
If the drone tilts forward or backward
Click the "-" of the Forward / Backward Trimmer to adjust the drone till balance if
the drone tilts forward. Click the "+" to adjust the drone till balance if the drone
tilts backward.
If the drone rotates to left or right
Click the "+" of the Left / Right Rudder Trimmer till balance if the drone rotates
left. Click the "-" to adjust the drone till balance if the drone rotates right.
If the drone tilts to the left or right
Click the "+" of the Left / Right Flying Trimmer till balance if the drone tilts to the
left. Click the "-" to adjust the drone till balance if the drone tilts to the right.
1. If you can not find the WiFi signal to connect, turn off WiFi and turn on again
to search and connect.
Note:
2. The available WiFi control radius/distance is 40m, please control the drone
within this range.
3. When changing control method from mobile phone to transmitter, exit from
the APP.
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