Quick Answer#
Lines on the GemCam control panel are usually caused by dust in the USB-C port or a loose or faulty USB-C cable. Cleaning the port, reseating the cable, and trying a replacement cable resolves the issue in most cases. If lines persist after these steps, contact support.
Before You Start#
A spare USB-C data transfer cable (not a charging-only cable)
Access to a second computer for testing
Steps#
Clean the USB-C port. Use a dry, lint-free cloth or a soft brush to gently remove dust or debris from the USB-C port on the GemCam.
Reseat the USB-C cable. Disconnect the cable fully, then reconnect it firmly to both the GemCam and your computer.
Try a different USB-C cable. Swap in a known-working USB-C data transfer cable and check whether the lines disappear. Charging-only cables will not work — confirm the replacement cable supports data transfer.
Test on a different computer. Connect the GemCam to a second computer and check whether the lines still appear. This confirms whether the issue is with your computer or with the GemCam itself.