User manual

Click the crossin the center, it will move from in the sequence of the center,
left up, left down, right down and right up till the calibration succeed, then the
system will Exit to the main interface automatically.
System information includes:
1.Firmware version
2.OS version
3.AP version;
4.Serial No.(System ID.)
4.7.7 System information
Exit system information
Firmware Version
Show the firmware version;
OS Version
Show the operating system version;
AP Version
Show the application version;
Serial No.
Show the system ID.
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PY-GPS5003