@reolink-fiona I have the RLN8-410, N3MB01, V3.0.0.159 latest firmware, and am NOT given the option to "change the image" for my new duo 2 camera. Duo 2 is latest firmware upgrade. Also, the NVR will NOT display the duo 2 in single live view window. Settings on the NVR will not allow me to change resolution from D1 with max bit rate of 8192. Cannot adjust any Alarm settings, NVR shows "loading failed" on Alarm settings window.. Duo 2 camera is connected and functioning fine otherwise. It appears the NVR is restricting options of the Duo 2 camera.