I have an EM9191 that had firmware SWIX55C_01.07.19.00 originally on it. I was able to get it to enter the factory test mode with the below commands.
I have update the firmware to SWIX55C_03.09.14.00, but when running the the AT!DAFTMACT command it returns “+CME ERROR: operation not supported”. Any idea why?
I don’t see such problem on FW 03.09.11.00, maybe you can try the same:
Manufacturer: Sierra Wireless, Incorporated
Revision: SWIX55C_03.09.11.00 7bf975 jenkins 2022/06/10 20:36:01
IMEI SV: 22