Troubleshooting for Nokia J Bluetooth Headset

Make sure the voice prompts are activated, since a voice prompt tells you the battery charge level. The voice prompts are on by default.
To check the battery charge, make sure the headset is switched on, and touch and hold the multifunction key for 2 seconds.
 

Your headset increases its volume level automatically according to the background noise. To change the minimum volume level, adjust the volume level of your connected device. The headset saves the minimum volume level separately for each connected device and remembers it.

Disconnect the headset in the Bluetooth menu of your device. You don't need to delete the device pairing to disconnect the headset.

Your headset uses an encrypted Bluetooth connectivity link whenever the connected device supports this feature. All Nokia devices with Bluetooth connectivity support this feature.

You can use voice dialling, if your mobile device supports this feature with the headset. Refer the user guide of your mobile device (for example Use your voice to call a contact). To activate voice dialling, when no call is in progress, press and hold the multifunction key for 2 seconds, if necessary, follow the instructions in the user guide. If you have connected your headset to two devices, the call is made on the device that you last had an active call on with the headset.

You can redial the last called number with your headset, if your connected mobile device supports this feature with the headset. To redial, when no call is in progress, press the multifunction key. If you have connected your headset to two devices, the call is made on the device that you last had an active call on with the headset.

The Nokia J headset is a Bluetooth headset. When switched on for the first time, pairing mode is activated automatically, and you can follow the voice guidance instructions given from the headset earpiece. 

The headset has a multifunction key which is used in two ways: tapping lightly on the touch sensitive area, and pressing down the key. To answer a call, either take the headset out of its clip holder, or if the headset is already in your ear, tap the multifunction key once. To reject a call, if the headset is already in your ear, tap the multifunction key twice. If the headset is in the clip holder, reject the incoming call on your phone as usual. To end a call, put the headset back into the clip holder.  If you want to leave the headset in place in your ear after ending the call, tap the multifunction key twice.

You can use your headset with any device that is compatible with Bluetooth Specification 1.1 or higher, and supports Headset Profile (HSP) or Hands-Free Profile (HFP). Some features may not work with all devices.

A blue indicator light blinks every 5 seconds.