Bluetooth connection takes 5 seconds for self-check. Each time the device is switched on; it needs 5 seconds before connection.
It is normal if the Bluetooth coverage might become short sometimes due to environmental interferences.
USB driver must be installed first before connecting the device to the USB port of computer. Make sure of the right COM PORT being used.
If disconnection between PDA and GPS is done in a abnormal way, PDA will halt. Try to disconnect Bluetooth connection in a standard method.
If the WBT-200 is found to work abnormally because of wrong procedure, reset it by taking off the battery. It will have factory default without effecting pre-set program. At the factory default, GPS reception begins in a quick start mode and its position may take longer time.
If WBT-200 is used for navigation but found unworkable after connection is done. Make sure the format of NMEA0183 that the software is used. Then use G-Tool to set it (Refer to the G-Tool operation guide).