Settings > Cameras > [Camera name] > Camera Name field.
During the First Run wizard, you gave your camera a name.
If at any time you want to change the name, you can easily do so:
1. Click on the Settings icon.
2. In the navigation bar, click on Cameras.
3. In the navigation bar, click on the option named with the original camera name.
4. In the “Camera Name” field (Basic section), remove the old name and enter in the new name.
5. Click Apply to save the new name.