No default IMEI read out by "AT+CGSN=1" at NRF9151

RE: No default IMEI read out by "AT+CGSN=1" at NRF9151

Charlie — Fri, 10 Jan 2025 14:20:39 GMT

Hi Jeff,

It doesn’t hurt to try following the document I mentioned earlier. If that doesn’t work, you have to move forward with the nRF9151 LACA A0.

Let me know how it goes.

Best regards,
Charlie

RE: No default IMEI read out by "AT+CGSN=1" at NRF9151

Jeffery — Tue, 07 Jan 2025 03:45:03 GMT

Hi Charlie

Since we only had one nRF9151 LACA AEA which mounted on our customer board, could we use #IMEIWRITE at this engineering version to solve CGSN error?

If yes, pti modem 2.3.6 was allowed at AEA version? or, other pti version?

Jeff

RE: No default IMEI read out by "AT+CGSN=1" at NRF9151

Charlie — Fri, 27 Dec 2024 08:51:36 GMT

Hi,

Thanks for reaching us for your questions. Here are the replies:

Q1: Development kits (DKs) and Thingy devices are delivered with pre-programmed IMEIs, so you do not need to order IMEIs for them. For your custom board, you need to decide to use IMEI from Nordic or your own company.

Q2: IMEI is not random number, you need to apply from GSMA if you want to have your own. For prototype builds and production-grade batches under 100k devices, you can use nRF Cloud to order Nordic IMEIs for your devices.

nRF9151 LACA AEA is one engineering version according to SiP revisions and variants, so it is not very clear if it has already programed a IMEI. I suggest you swith to formal nRF9151 LACA A0. According to Write IMEI %IMEIWRITE, nRF9151 LACA A0 module includes a default IMEI alerady and also can be changed once with the %IMEIWRITE command.

Best regards,

Charlie

RE: No default IMEI read out by "AT+CGSN=1" at NRF9151

AcuSense Kenji — Wed, 25 Dec 2024 09:00:51 GMT

Providing additional information on image of nRF9151 serial numbers. that may help narrow down the root cause of IMEI issue identified in our PCBA

AcuSense

Kenji