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1.Reset the headphones.
2.Turn on the Bluetooth of your phone to connect with the headphones.
3.Make sure your phone is connected with good network. Turn o the APP and
reopen it.
4.Connect the APP with your phone and do the upgrade again.
5.Precautions during the APP upgrade process:
- During the upgrade, the distance between the headphones and the phone must
be within 0.5 meters.
- Do not disconnect, play music, or answer the phone calls at this time.
- Don't close or shrink the upgrade page.
What can I do if the APP can’t be updated?
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