NAM

Wotumm 👋 

🔧 How to Achieve NAM-like Control on Modern Phones

1. Understand What Replaced NAM

SIM / eSIM profiles replaced NAM fields (MIN, SID, PRL, etc.).

Instead of keying them in manually, you now provision or inject SIM/eSIM profiles.

The “programming” happens in the SIM card or in an eUICC (embedded SIM chip)

2. Tools Technicians Use Today

Depending on the network type and your role, here are your options:

🔹 For physical SIM cards

Use a SIM card reader/writer (with software like Sysmocom, MagicSIM, or Cardpeek).

You can program or clone SIMs if you have the carrier keys (Ki, OPc).

Without keys, you can’t authenticate to a live network — carriers guard these tightly.

🔹 For eSIM (modern NAM equivalent)

Use SM-DP+ servers (Subscription Manager Data Preparation).

Carriers issue QR codes or activation strings that load an eSIM profile.

For lab/testing, you can generate your own test eSIMs if you have access to an eSIM management platform (Gemalto, G+D, or open-source testbeds).

🔹 For CDMA / LTE field work (if still relevant in your area)

Phones still have diagnostic ports (DIAG, QPST, DFS, CDMA Workshop, Qualcomm QXDM).

These let you edit hidden fields like IMSI, PRL, SID/NID — similar to NAM.

Example: with a Qualcomm-based phone + QPST, you can load a custom PRL just like in the old NAM days.

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3. Test Environments

If you’re doing this for lab, repair, or field testing:

You can run a private LTE/5G network using software like srsRAN, Open5GS, Amarisoft.

There you can control the MCC, MNC, IMSI ranges — just like assigning SIDs and MINs in NAM.

Then, you issue your own SIM/eSIM profiles for test devices.

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4. What You Can’t Do Anymore

You can’t just take a random smartphone and key in a new MIN/SID to make it work on Verizon/AT&T like in the old days.

Authentication now uses cryptographic keys stored in the SIM/eSIM, so unless you’re the carrier (or in a test lab), you can’t bypass that.

✅ Summary for you as a technician:

The “modern NAM” is SIM/eSIM provisioning.

Tools: SIM programmers, Qualcomm diagnostic tools (QPST, QXDM, CDMA Workshop), eSIM management systems.

For real carrier networks, you need carrier-issued SIM/eSIM. For lab/test networks, you can build your own and program devices just like you used to.

Do you want me to show you the practical workflow (step-by-step) for, say:

1. Programming a SIM/eSIM profile in a lab (modern NAM style), or

2. Using Qualcomm tools to manually set IMSI/PRL on a handset (closest to old-school NAM)?