RE: nRF9151 persistent EMM cause 19 - Mexico

Simon D-M — Tue, 21 Apr 2026 08:08:31 GMT

Hi,

Cause #19 – ESM failure

This EMM cause is sent to the UE when there is a failure in the ESM message contained in the EMM message.

In most cases EMM cause 19 is simply a new SIM not being activated. Did you already activate the SIM? Or maybe it has run out of available data?

[quote user=""]Contacted Onomondo for support.[/quote]

Did they already answer something ? If not I would recommend waiting for their response as this is very likely an issue between the SIM and the Network. So there are very few things we can do to help you.

Best regards,

Simon D-M