This article discusses updating the touch firmware on 5543L monitors
The touch firmware for 5543L monitors featuring PCAP technology can be updated to enable "thru-touch" capabilities. Navigate to the firmware download section on the Elo — Now part of Zebra Technologies website to extract and download the necessary utility and firmware for your PCAP monitors.
Please report any broken links by emailing elo.support@zebra.com and include a link to the knowledge article