User's Manual

HTC BH M400 Bluetooth Headset Page 7
 To check the battery status
Press the action/power key briefly:
 One red flash- the battery needs charging soon.
 Two Blue flashes- the battery is half full
 Three blue flashes- the battery is fully charged
What the lights mean
 See User Interface Specification for detail.
Mode
LED indicator
Power on
Blue LED solid On for 2.5 seconds
Power off
Red LED solid On for 2.5 seconds
Pairing mode
LED flashes Blue and Red alternately
Charging on
Red LED solid On
Fully Charged
Blue LED solid On
Standby mode (connected)
LED flash five times then off
Incoming Call
LED quick flashes blue continuously
Ongoing Call (Call active)
LED two-flashes blue every 2 second
Troubleshooting & FAQ
I hear crackling noises
 Bluetooth is a radio technology, which means it is sensitive to objects between the headset and the
connected device. It is designed for the headset and the connected device to be used within 33 feet (10
meters) of each other, with no major objects in the way (walls, etc.).
I cannot hear anything in my headset
 Increase the volume in the headset.
 Ensure that the headset is paired to a device that is playing.
 Make sure your phone is connected to the headset by tapping the Answer/End button.
I am having pairing problems
 You may have deleted your headset pairing connection in your mobile phone.
 Follow the pairing instructions.