How to do if Mi Band cannot bind to App?

Solutions:
1. Exit the APP, turn off the Bluetooth switch, and re-open the connection attempt.
2. In the case of more peripheral bands, you can put your band close to the mobile phone or go to the place where there are fewer Bluetooth devices.
3. Clear the Bluetooth information of the device from the Bluetooth list of the mobile phone system,
4. If the Mi band has been bound before, it shall be unbound in the previous device account and then bound to the new phone.