MONOGOTO Sim card diont detected

[Oleg-AgamControl]

have a MONOGOTO SIM card that works successfully with TELIT and THALES modems.
However, the same SIM card is not detected on the NRF9151-DK. When I send AT+CPIN?, I get:

+CME ERROR: 13

On the other hand, a regular (ORANGE\CELLCOM\PELEPHONE) SIM cards are detected and works correctly on both the NRF9151-DK and TELIT modems.

What could be causing this issue? How to fix?

[Susheel Nuguru]

Hi, 

Which SDK and Modem firmware are you running on the nRF91-DK?

Can you please have the latest NCS and modem firmware flashed and run 

AT+CGMR

Does the MONOGOTO sim require 1.8V or 3.0V, Nordic's modem negotiates voltage based on SIM ATR but if the SIM is not responding correctly, it might default to 3V.

Similar discussion can be found here

[Oleg-AgamControl]

The problem was that the SIM card needs much more time — up to 2–3 minutes — to activate during the first power-up. My program, however, would stop, cut off the SIM power, and restart the controller whenever a SIM error occurred. After I changed the code to keep the SIM powered on for a few minutes after startup, the SIM registered successfully, and now everything works normally