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No audio | Bose QuietComfort Ultra Earbuds
Try a different app.
If the issue only occurs with a particular app, it is likely related to the app or app settings.
Determine if the issue occurs with another Bluetooth® device.
The source device currently paired to your product may be causing the issue. Try pairing a different Bluetooth source to see if the issue is isolated to that device.
Reset your product.
Much like rebooting a smartphone, your product might need to be reset on occasion to correct minor issues. For more information, see Resetting your product.
Clear your product's memory of previously paired Bluetooth® devices, then reconnect.
Your product remembers the last several devices it connected to so it can quickly reconnect to them. In case of an issue with the device memory, clear it, then reconnect your device. For more info, see Clearing the product memory of paired Bluetooth® devices and Connecting a Bluetooth® device.