User guide

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Step4 Digital Compass Calibration
Please calibrate the compass using the following steps, if the GPS module is used, else skip.
STEP1 Quickly switch the control mode switch from Manual Mode to GPS ATTI. Mode for 6 to 10 times
(Manual Mode -> GPS ATTI. Mode -> Manual Mode is one time) and the LED indicator will be
constantly on in yellow .
STEP2 Rotate you helicopter around its horizontal axis until the LED lights green constantly.
STEP3 While the green LED is constantly on, hold your helicopter vertically and rotate it around its
vertical axis, keep rotating until the green LED is off, meaning the calibration is finished.
STEP4 After you finished the calibration, the LED indicator will show whether the calibration is successful
or not:
 If calibration was successful, calibration mode will exit automatically.
 If the LED keeps blinking red quickly, the calibration has failed. Switch the control mode switch
one time to cancel the current calibration, and then re-start from the step 1 for re-calibration.
Important:
 Please complete the calibration in an open area.
 If you keep having calibration failure, it might suggest that there is very strong magnetic interference
around the GPS & Compass module, please avoid flying in this area.