Hi, I have two 4G LTE devices, one can connect to 4G network, one could not and has following error from connman log file: Failed to change property: /ubloxqmi_0/context1 org.ofono.ConnectionContext.Active: org.ofono.Error.AttachInProgress GPRS Attach is in progress Does the error indicate the SIM is not activated? Or what could be the problem? Thank you. Kind regards, - jh