A: There is no need to enter the pairing code when you connected it. You just need to turn on the Bluetooth and connect the APP. You don’t need to enter the Bluetooth matching interface. Could you please try to open the GPS permission?
Then, 1.open the APP; 2.turn on the thermometer; 3.plug the sensor. It will show ‘start’ under the phone screen. Press the ‘start’, the Bluetooth icon on the thermometer will flash. Then press the button of the thermometer, it will show ‘done’ under the phone screen. 4. If still does not work, please uninstall the app and reinstall it.
Here is the video for reference: IBT 4Xs - YouTube