The headset cannot be charged even if connecting the charging case to a computer.
- Check that the supplied USB Type-C cable is properly connected to the USB port of the computer.
- Check that the charging case and the computer are directly connected, not via a USB hub.
- There may be a problem with the USB port of the connected computer. Try connecting to another USB port on the computer if one is available.
- Try the USB connection procedure again in cases other than those stated above.