SparkFun LTE CAT M1/NB-IoT Shield - SARA-R4 unable to find operators

Hi

I recently purchased a SparkFun LTE CAT M1/NB-IoT Shield - SARA-R4.

I followed from instructions on the LTE Cat M1/NB-IoT Shield Hookup Guide.

I tried running the script 00_Register_Operator with a Hologram Sim.

The Hologram Sim is has been activated and shows the status “Ready” on the Hologram Dashboard.

I have tried without and with the external antenna (LTE Antenna 100mm FPC U.FL - VT4GFIA-6).

Have set APN = “hologram” and MOBILE_NETWORK_OPERATOR = MNO_SW_DEFAULT.

So its the standard script with no changes.

I am getting the following error “Did not find an operator. Double-check SIM and antenna, reset and try again, or try another network.”

I ran the script Serial_Passthrough and got the result “LTE Shield connected!” “Ready for passthrough!”.

Which suggests the LTE shield is communicating with the Arduino Uno R3.

I have gone through some of the past forum posts and tried all recommendations. And there appears to be no solution on any of the threads.

Have tried outdoors and I live in the city of Melbourne where I have complete coverage from all networks.

Sparkfun team please provide assistance on further steps to take.

02 Serial Passthrough Result.png