Musical minds expert ring mambo 1 How to activate it without 16 digits behind the host?

Download Lexin Health, register a Lexin account or Baidu account, log in, turn on Bluetooth (4.0), add a device, and hold down the bracelet for 5 seconds until two squares jump around and enter the matching mode. If the phone doesn't respond, just refresh it and a bracelet map will appear. Click on the link to display SN: 16 digits.