1. After turning on the compass, please calibrate it before using it.
2. Please supply power to GPS according to the voltage within the
specified range
3. Please carefully solder according to the wiring diagram to avoid
short-circuiting and burning the GPS
4. Please use BF4.3.0 or above firmware
(too low version does not recognize the 10th generation chip)
5. GPS must be installed with the antenna facing up and away from
motors, power lines and other interfering parts