Does the 540 not connect through Garmin Express anymore? My computer wont pick it up - only my Tactix 7 Pro Ballistics Edition. Not that I need express for anything.
My MacBook Pro M1 and Edge 540 work as expected over USB-C with Garmin Express. I have used it numerous times to sync and have also updated firmware and managed maps.
Ok problem solved - only works on my mac on a USB-C to USB-C cable. I had a cable hooked up to a regular USB port.