Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 525)

Canceling the Pairing
Cancel pairing with a smartphone as follows.
1.
Select [Check/clear connection info].
2.
Press the < > button.
3.
Select [OK].
4.
Clear the camera information on the smartphone.
In the smartphone's Bluetooth setting menu, clear the camera
information registered on the smartphone.
525