How can I avoid black lines appearing in the live view of Bosch cameras?
This happens due to the difference between the wavelength of the emitting light and the FPS settings of the camera.
Depending on your region, the AC frequency may be 50 Hz or 60 Hz. For example, the standard alternating current in the United States is produced and used at 60 Hz. In some European and Asian countries, the standard alternating current is produced and used at 50 Hz.
Please proceed with changing the FPS of the camera. The FPS should match the AC frequency of you region or should be a multiplier of it. You can change it directly in the camera's web page:
If the black lines don’t completely disappear, you might want to consider replacing the light source.