As a followup - I flashed a new AB203 sd card. It came up fine. I followed the instructions here: maker.pro/raspberry-pi/tutorial/how-to-u...-with-raspberry-pi-4 When I ran sudo cgps -s, I got the wrong gps coordinates. I ran sudo systemctl disable virtualgps.service Repeated the instructions above This time, sudo cgps -s returned the correct coordinates. Rebooted sudo -cgps -s returns: cgps: no gpsd running or network error: -6, can't connect to host/port pair What am I missing? Read More...