User Manual

ENGLISH - 33
TROUBLESHOOTING
Symptom Solution
No sound
• Power on the headphones and charge the battery.
• Check the state of the status indicators (see page 19).
• Increase the volume on your headphones, your mobile device
and music source.
• Slide the Power/Bluetooth switch to the right and release to
hear the connected device. Make sure you are using the correct
device.
• Move your mobile device closer to the headphones and away
from any interference or obstructions.
• Use a dierent music source.
• Connect another mobile device (see page 26).
• If two mobile devices are connected, pause your other
device first.
• If two mobile devices are connected, move the devices within
range of the headphones (30 ft. or 9 m).
Poor sound quality
• Use a dierent music source.
• Connect another mobile device (see page 26).
• Disconnect the second device.
• Move your mobile device closer to the headphones and away
from any interference or obstructions.
No sound from a device
connected by the back-up
audio cable
• Power on your mobile device and play music.
• Secure the ends of the back-up audio cable.
• Increase the volume on your headphones, your mobile device
and music source.
• Connect another mobile device (see page 26).
Poor sound quality from
a device connected by
audio cable
• Secure the ends of the back-up audio cable.
• Connect another mobile device (see page 26).
Battery won’t charge
• Secure the ends of the USB charging cable.
• Try another charging source.
• If your headphones have been exposed to high or low
temperatures, let the headphones return to room temperature
and try charging again.
Action button does
not change the noise
cancelling mode
• Make sure your headphones are powered on.
• Use the Bose® Connect app to change the noise
cancelling mode.