Is My Coaxial Cable Broken?

Check rear-camera connections and recordings before choosing the next step

Identify the symptom

Find the model names on the front and rear cameras. Note any LED or voice warning and whether the fault affects saved rear recordings, live view or both. A missing rear view does not, by itself, prove that the cable is broken.

Before unplugging the rear cable, park safely and follow your exact model’s shutdown and restart instructions. Let the camera shut down fully, restart it, then recheck the rear-camera LED and a new recording. If the problem continues, power it off completely before inspecting connections.

Check the cable connections

Keep the camera powered off while checking its rear cable.

Check the cable connections at both cameras. Look for visible cuts, kinks or pinch points along the cable, and avoid forcing a plug that will not seat normally.

Installed BlackVue Full HD rear camera with a connected cable — Check the cable at both camera ends with the camera powered off

Save recordings before card changes

Save any recordings you need before formatting the memory card. Formatting permanently erases recorded footage.

If card troubleshooting is appropriate for your model, follow its formatting instructions and test with a known-compatible BlackVue card. The earlier SD Card Viewer image shows the Format control. Use the card type and formatting method specified for your model.

If a firmware check is needed, use the exact model’s official installation method. Our manuals and firmware resources can help you find the right instructions. Follow the manufacturer’s update method for that model, including any supported app or computer procedure.

Older BlackVue SD Card Viewer with the Format control circled — Format control in the earlier BlackVue SD Card Viewer.

Look closely at the connector

Look for visible damage at the cable plug with the camera powered off. If a pin looks bent or missing, leave the connector unchanged and ask support to assess it before reconnecting.

Close-up of a cable connector with a red arrow pointing at its central contact — The connector contact highlighted by the red arrow.

Check the camera socket

Check the camera socket as well as the cable plug. If it looks damaged, pause the cable test and send photographs of both connector ends to support before trying another cable.

Older BlackVue systems, including the DR650GW-2CH and DR750LW-2CH, use coaxial rear-camera connections. Choose the cable specified for your exact camera; a similar-looking plug does not establish compatibility.

BlackVue’s historical cable compatibility guide

For a continuing connection fault, BlackVue’s support guidance suggests a known-good BlackVue rear-camera cable of the correct length for the model. Ask support about that test if either connector looks damaged.

Close-up of a camera end showing its gold connector and other ports — Camera socket and the surrounding ports and controls.

Contact Us

Send us your camera model, a description of the rear-camera issue and clear photographs of the cable plugs and camera sockets. Include your order number if you bought the equipment from us. We can help you identify the correct cable or next support step without guessing from the connector’s appearance.