With the recent changes to the platform for the FusionSIM, this discussion from @Jonathan_Pitts & @Wiktor has some unofficial yet good updated information.
You may need a special release of firmware for this also, latest version we have tested is 1.1.69 for the SIM Injector.
As the new FusionSIM platform is still in its beta phase, we recommend raising a support ticket to request access and verify the most suitable firmware required for the beta program.