BullTronics MIB IV User Manual page 7

Car Settings--GPS Information
GPS information shows the basic information of the machine
positioning, while supporting the Beidou and GPS dual module display.
The automatic sync switch can control whether the time of the machine
is synchronized with the time of the satellite being positioned when the
vehicle is positioned.
Car Settings - Factory Settings
The factory setting can be configured for the machine function.
Enter the correct pairing password. It is not recommended to change the
settings to ensure that the machine works normally.