Sim Application Toolkit on EM7455

Hello, I am trying to determine if the SIM Application Toolkit is properly enabled on a EM7455.

I’ve tried the command


It almost appears that the toolkit is not set up on the device firmeware.


Any ideas on what is going on?

Manufacturer: Sierra Wireless, Incorporated
Model: EM7455
Revision: SWI9X30C_02.33.03.00 r8209 CARMD-EV-FRMWR2 2019/08/28 20:59:30
MEID: 01458200723795
IMEI: 014582007237952
FSN: LF725339270110

Hi @mattenelson

It is a normal behavior. EM7455 doesn’t support the !STK commands.

Please help to tick “Solution” if your question is answered. So the community could easily find the solution for their problems.

If it does not support the commands, does it support the toolkit for SMS OTA?

I am trying to get this device to complete OTA updates and it does not seem to be completing them.

Hi mattenelson,

EM7455 has supported SIM Toolkit.
Sierra delivered eUICC SIM cards in different formats initially loaded with Sierra profile

Please contact your reseller or distributor directly or below website for technical support in this case.

OK, so 7455 has the toolkit supported, but does not have the at commands to control it?

I am not using Sierra delivered eUICC SIM cards, not sure what that has to do with my situation.

Hi @mattenelson,

Yes,it is.

Please help to tick “Solution” for original question.

If you want to use Sim Application Toolkit feature on EM7455, Please contact your reseller or distributor directly for technical support.

1 Like

Ok, I work for a SIM manufacturer and MVNO, we have some enterprise customers using the 7455 who are having trouble receiving the SMS OTA while their other devices (over 10,000) are not having any issues with our SIMs. I do not have a contact as a “reseller” or “distributor” so I am not aware of how to contact technical support directly. Which is why I have asked the questions on this forum.

Thank you for your assistance.