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Headphones will not turn on | Bose QuietComfort 45 headphones
Check if the battery is charged.
Be sure the battery is not depleted. For more info see, Checking the remaining battery charge and Charging your headphones.
If your product has been in extreme hot or cold temperature, wait until it reaches room temperature.
If the battery temperature is beyond the operating temperature range, wait until the product reaches room temperature, then try again.
Check for and install any available product updates.
On a computer, visit btu.bose.com and follow the instructions to ensure your product has the latest features and enhancements. See Checking the software or firmware version and Updating the software or firmware of your product.
Reset your product.
Much like rebooting a smartphone, your product might need to be reset on occasion to correct minor issues. For more info, see Resetting your product.
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