If you want to delete cameras/NVR from Reolink App, please refer to the below instruction.
Applies to: All Reolink Cameras and NVRs.
Here is a video for your reference:
Step 1. Tap the gear icon to enter the Settings page.
Step 2. Tap Delete to remove the camera/NVR from your Reolink App.
Note: If you delete the camera in LAN while the camera is still connected, please disable Add Devices Automatically first and then delete the camera; otherwise, the camera will show up again after being deleted.