Make sure your phone and the other Bluetooth™ device are charged, switched on and within range of each other. Make sure Bluetooth™ wireless technology is turned on, and that the devices are set to be visible for other Bluetooth™ devices. Check that the two devices are paired, and have found each other. If there are still problems, you'll have to reset the connection and pair the two devices again.
In some Bluetooth™ installations, you must activate a COM port manually in your computer. This is done differently for different brands and models of Bluetooth™ devices. Please see the manufacturer's product documentation.
If a COM port is not activated
In many cases, you can right-click on your phone icon in the window where all found Bluetooth™ devices are shown, and select a "COM port activation" item in the menu. Make a note of the COM port number of the activated port.
Open Sony Ericsson PC Suite and click Tools/Phone Monitor Options…/Com Ports. Enable the COM port you activated in step 1.
Keep the Bluetooth™ wireless technology turned on in your phone, restart the computer and try to connect again.
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