First, ensure that the camera placement is correct. If the placement is not the issue, proceed by updating the firmware of the device. In case you notice condensation droplets on the lens, it might be a sign of moisture buildup. If these droplets do ...
Use an SD card with a capacity between 32GB and 256GB, depending on the desired recording resolution and duration. When the card becomes full, the DVR is capable of automatically overwriting the oldest data.