I’d like to add a sim holder to the EC25 modem itself. Is there a SIM holder that is know to work in that footprint?
Possibly this could be used. I haven’t tested it though. : https://www.dx.com/p/mini-pcie-adapter-with-sim-card-slot-for-3g4g-wwan-lte-gps-card-2725945.html?tc=USD&ta=US&gclid=CjwKCAjw7-P1BRA2EiwAXoPWA7op9Zp9XyDvzEZ0o7CWKDno8xZMvWsYDyR2tzXQfjxR9SQ_PHgLvxoC-U0QAvD_BwE#.Xrm_c6hKhaQ