Bose QuietComfort Ultra Wireless Noise Canceling Over-Ear Headphones (White Smoke) - Manual (Page 51)

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TROUBLESHOOTING
SYMPTOM SOLUTION
No sound from a source
device connected by an
audio cable
Make sure you’re using the Bose-provided audio cable.
Make sure both ends of the audio cable are securely connected
to the ports (see page 33).
Press play on your mobile device to make sure audio is playing.
Play audio from a different application or music service.
Play audio from content stored directly on your mobile device.
Increase the volume on the headphones, then increase the
volume on your mobile device.
Restart your mobile device.
Poor sound quality from
a mobile device
connected by an
audio cable
Make sure both ends of the audio cable are securely connected
to the ports (see page 33).
Restart your mobile device.
Microphone doesn’t
pick up sound
Make sure you are wearing the headphones correctly. The inner
scrims (cloth covers) of the headphone earcups are marked with
an L (left earcup) and R (right earcup). Match the right earcup
with your right ear and the left earcup with your left ear.
Make sure the microphones aren’t blocked and that they are free
of debris.
Clear the headphone device list (see page 30). Delete the
headphones from the Bluetooth list on your mobile device,
including any duplicate listings labeled LE (Low Energy). Connect
again (see page 27). Try another phone call.
Disable the
Bluetooth feature on your mobile device,
then re-enable.
Multi-function button
doesn’t change
the mode
Use the Bose Music app to change the mode. To access this
option, tap Modes on the main screen.