All LightSort racks are controlled by a set of hand scanners and ring scanners. Those scanners need to be configured before use. If an un-configured scanner is used to scan barcodes, this warning will display on the controller.
Each kind of scanner used on the LightSort system has a different set of barcodes for programming it. If a hand scanner needs to be re-programmed, scan the associated barcodes in the order presented.