Read EF_5GS3GPPLOCI from SIM

IoT Modules 5G Module
1

Hi,
I am using an RG500Q and I’m trying to read from the SIM the EF 5GS3GPPLOCI, an EF that is within the DF 5GS.

So far I’ve used:
AT+CRSM=176,20225,0,0,0,,”5FC0”
where the path includes the DF_5GS address (5FC0), but I receive a
+CME ERROR: 23

I’ve used variants such as:
AT+CRSM=176,20225,0,0,0,”5FC0”
because I don’t know what to do with the commas if the data field of CRSM is not used, but still the same result.

I’ve tried to extend the path with what I think is the address of the current ADF:
AT+CRSM=176,20225,0,0,0,”7FFF5FC0”
But nothing.

Any experience or suggestions with this?

Thank you very much.

2

Hi @david.m-s,

according to my understanding of TS 27.007 AT+CRSM=176,20225,0,0,20,,"5FC0" should work but it also returns an error.

You would therefore have to use AT+CSIM for SELECT 7f ff 5f c0 4f 01, GET-RESPONSE and READ-BINARY.

To avoid the small risk of an intervening T0 command from the RM500Q you would have to find out the USIM AID with AT+CUAD, open a logical channel with AT+CCHO and use AT+GCLA instead of AT+CSIM.

Good luck!

Regards,
Reinhard