Issue:
When adding ABL4712 v1.01_2018_07_03 on NVR v8.8.0.3 meets a error message "Unauthorized modification and illegal installation"
Solution:
Please contact the your sales representative to change the camera then it will be fixed.
Reference:
[ UVS - 201905094001 ] NVR v8.8.0.3 unauthorized modification and illegal installation with ABL4712 v1.01_2018_07_03