The Jabra Extreme is a headset that communicates directly with your smartphone via Bluetooth. It can also communicate with your computer through a USB Bluetooth adapter. If the headset has stopped working correctly, perform a series of troubleshooting procedures to diagnose and fix the problem.
Verify that your Jabra Extreme is charged. The headset does not work properly if the battery is low or dead.
A flashing red light indicates that the battery is low. A solid yellow light means the battery is over 70 percent charged. A solid green light means the battery is fully charged.
Verify that the USB adapter is firmly and squarely inserted into a working USB port on your computer. If other USB ports are available, insert the adapter into another port. Skip this step if you're trying to connect to a smartphone or tablet without using the USB adapter.
Restart your computer or mobile device. Occasionally peripherals, including Bluetooth headsets, can stop working due to hardware conflicts and software glitches. Restarting your device often fixes these issues.
Unplug any other peripherals currently connected to your computer, and particularly any peripherals you installed around the same time the Jabra Extreme stopped working. There may be a hardware conflict between one of these devices and the Jabra Extreme.
Verify that audio is playing on your computer or mobile device and then manipulate the volume controls on the Jabra Extreme to verify that the device is set to an audible level.
If you can hear audio but the quality is poor or you notice intermittent crackling noises, make sure you're within 30 feet of your computer or mobile device. Attempting to use the Extreme at or near the limit of its range will result in poor audio quality and drop-outs. If possible, situate yourself away from walls, microwaves and any devices that use radio frequencies to communicate, such as telephones and wireless routers.
Reset the Pairing Connection
If the above solutions don't fix your problem, re-establish the pairing connection between the Extreme and your mobile device or computer.
On Your Mobile Device
Images here are from a device running Android 5.0 and may differ slightly on devices running earlier versions of Android, iOS or Windows Phone. The process of re-establishing a Bluetooth connection with an external device is essentially the same regardless of which of the three major operating systems is running on your mobile device.
Open the Settings app and select Bluetooth to open the Bluetooth panel.
Tap the Gear icon located next to your Jabra Extreme on the list of paired devices.
Return to the main Bluetooth screen and toggle the Bluetooth switch off and then on again.
Select the Jabra Extreme on the list of available devices and enter the pairing code 0000, if prompted, to finish re-establishing the pairing connection.
On Your Computer
Turn off the Jabra Extreme headset.
Unplug the USB adapter from your computer and then plug it back in again.
Press the button on the USB adapter until its LED light turns blue.
Press the multifunction button on the headset until its light turns blue as well.
Wait for the LED light on the headset to begin flashing green, indicating that the Extreme has been successfully paired with the USB adapter.
Reset the Headset
If none of the above solutions work, reset the headset. Press and hold down the multifunction button and both volume buttons for five seconds. After you've reset the Jabra Extreme, re-establish the pairing connection with your mobile device or computer.