Q: We installed a 4G SIM, but it won’t connect to 4G LTE-m network.
A: You need 4G LTE-m subscription on your SIM, that’s not the same as regular 4G.
Ask or check with your provider if the SIM has a LTE-m subscription.
T: LTE-m is a subset of 4G and 5G, specially for Telemetry devices.
Only if LTE-m is supported by your provider and enabled on your SIM card, it will work.