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Software or firmware update will not install | Bose QuietComfort 45 headphones
If an update is not successful:
Are you trying to update your product using the Bose Connect app?
Yes
Be sure your product is within 33 feet (10 meters) of the Bluetooth® device.
Bluetooth range is about 33' (10 m). This range can be reduced by obstacles (i.e. walls, doors, pockets, nearby Bluetooth devices, etc.). Try moving the device and product closer together.
In the Bluetooth® settings of the device, remove your product, reconnect it, then try the update again.
In the Bluetooth settings of a device, there is typically list of previously-connected products. Find your product in this list and choose to remove or forget it. After, reconnect the device to your product and try the update again.
Uninstall and reinstall the Bose app.
In case an issue occurred with the app, uninstall it from your device, download and reinstall it, then try again.