After rebinding the phone, the Keep bracelet cannot receive messages and caller ID.

You can wait a moment, the background information may not be reacted, or you don't have permission to open it.

Don't panic in this situation, the system needs time to react. This may also be the reason why you don't have permission to open the notification. We just need to give it the corresponding permissions. When the sports health app is connected to the bracelet and watch device, a pop-up box with permission settings will pop up, telling you the permission to open the message notification, and has told you that you can accept notifications such as WeChat and SMS after opening.