Why cannot I pair my watch with my phone after changing my phone number?

 If your login account remains the same, you can pair your watch with your previous account:
 Log in to the TCL Connect App using the previous account. The paired watch will display in the list of connected devices. There is no need to re-bind the watch.
 If your login account changes, you must:
1) Scan the QR code shared from the administrator to pair the watch with your new phone.
2) To gain administrator permissions, unbind the watch from the previous administrator account, and then bind it to your new account.