All Annke DVR or POE NVR systems
If some cameras do not produce images, the images flicker or have interference, etc., please refer to this instruction for troubleshooting.
1. connect camera C1 to channel A1 with working cable B2 to confirm if it is cable B1‘s problem.
2. Connect camera C1 to working channel A2 with working cable B2 to confirm if it is camera C1‘s problem.
3. Connect working camera C2 to channel A1 with working cable B2 to confirm if it is channel port A1‘s problem.
4. If the ways can't work and your cameras are analog cameras, please try to change the power adapter (12V with more than 2A current) for the cameras.
If changing the power adapter can't work, please remove the splitter and then separately power the cameras via a 12V 2A power adapter.
Please refer to the steps to do the troubleshooting and then tell us the result.
If the problem still cannot be solved, please provide some pictures or short videos to show the test results and the problem of image anomalies, which will help us help you better identify the problem.