Pair and connect a Bluetooth device to the Nexus One smartphones with these steps.
1. Open the Settings app.
2. Tap Wireless & networks.
3. Tap Bluetooth settings.
4. Ensure that Bluetooth is checked to enable it.
5. Turn the Bluetooth device on and set it to discoverable if required.
6. Tap Scan for devices.
7. The Nexus One should locate any devices in the area. Tap the name of the device. In this case it’s Jabra VBT2050.
8. It should connect just fine. It will show as Connected to phone…
If the device fails to pair, it is likely too far away or needs to be reset. Most headsets can be reset by pressing and holding the power button or a combination of buttons for about 10 seconds.