② Sensor prompt icon.
The "8" icon in the middle of the electronic compass indicates that it is
disturbed by the external environment.
You need to enter the menu [Compass] and perform correcon operaons
according to the screen prompts.At this me, aer entering the menu
[Compass], the screen will prompt "Please calibrate the sensor according to
the figure 8 rotang device".At this me, please hold the device and stretch it
forward, and draw the figure eight (ie " ") quickly and forcefully. It is beer to
complete one to eight characters in about 2 seconds
If it is somemes close to a strong magnet, the screen will prompt an icon, and
the icon will be restored immediately aer it is far away, and no correcon is
required at this me. If the electronic compass is found to be unresponsive
during use, please enter the menu [Compass] to calibrate the sensor to avoid
being misled by the strong external magnesm.
5.4 Main and sub channel switching
In standby mode, press and hold the [Back key] to switch between the main and
sub-channels, and the channel with large fonts displayed on the screen is the
currently operable channel(main channel).
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