Dell BT-308 Owner's Manual page 30

To manually set the COM port:
NOTE:
If you are currently connected to your Bluetooth device you must
disconnect before manually setting the COM port or the baud rate.
Tap Options, tap GPS Options, tap COM Port and then tap a port
1
(COM 1 to COM 9). The Bluetooth Browser screen appears.
Tap the appropriate Bluetooth device. All GPS receivers contain GPS
2
in their identifier. The Map view appears.
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Owner's Manual