nRF9151 - Cannot Read ICCID on External SIM (works with eSIM)

[Milan Pipaliya]

Hello,

I am working with the nRF9151 board and trying to read SIM/eSIM information.

Steps I followed:

Used nRF Programmer → Erase all.

Opened Board Configuration → selected eSIM and 3V3.

Flashed quick start program.

Sent CLI commands:

AT
OK
AT+CPIN?
<response>
AT%XICCID
<response>

When using the onboard eSIM, I am able to get the ICCID successfully.

Issue:
When I attach an another eSIM, I get errors:

> AT
OK
> AT+CPIN?
+CME ERROR: 13
> AT%XICCID
+CME ERROR: 0

What exactly does +CME ERROR: 13 indicate in this case?

Any guidance would be very helpful.

Thanks

[Michal]

Hello,

I will try to find more information on that and get back to you.

Best regards,

Michal

[Michal]

So CME ERROR: 13 indicates "SIM FAILURE"

See https://support.micromedia-int.com/hc/en-us/articles/360010426299-GSM-modem-CME-ERRORS-Equipment-Related-GSM-Errors

What kind of eSIM are you trying to use?

Best regards,

Michal

[Milan Pipaliya]

Hi Michal,

Thanks for the pointer on CME ERROR: 13 (SIM failure).

Here’s what I tested:

• eSIMs: ST4SIM and Twilio MFF2 eSIM

• Physical SIM: Anomonda IoT SIM

Results

• On one nRF9151 DK board, all of the above SIMs work: AT commands run fine and I can read the ICCID.

• On another nRF9151 DK board, it fails with CME 13.

Observation

• Following our process (shared in the video): after AT+CFUN=0 then AT+CFUN=1, the working board brings up the SIM supply and I can measure 1.8 V.

• On the failing DK board, the 1.8 V rail never comes up after AT+CFUN=1.

If you have ideas on why CFUN wouldn’t enable the SIM 1.8 V on the DK (hardware gating, PMIC config, or modem FW differences), I’m all ears. I can share more logs if needed.i'v also test solder issue but it is also correct.

[Michal]

Are both of those nRF9151 DKs the same version?

What about the DIP switches on those boards? Are they set up the same way?

[FlorianStorz]

Hello, 

I am struggling with the exact same behaviour and would like to ask if you were able to find the solution for this problem? 

I would highly appreciate an answer, thanks in advance. 

Best regards, 
Florian

[Milan Pipaliya]

hii

in my case in last i found sim solder issue so please check it

another solution i suggest is please use AT cfun = 1 at command it activate power supply to your board 

any other suggestion needed pl ask 

you can also apply at client and at monitor example code which also help ful

best regard 
Milan