About the carrier profile

A carrier profile is a downloadable QR code or text string that contains a cellular carrier's digital identity information that your Digi device uses to register on their cellular network. The profile includes:

  • Which carrier you’re using

  • How to authenticate on their network

  • What settings to use (like APN)

  • Your subscriber identity (IMSI)

  • Encryption keys for secure connection

The carrier profile is stored on an eSIM. You can configure a preferred carrier profile, as well as configure SureLink to switch between carrier profiles when a connection cannot be made.

Think of a carrier profile as a digital file downloaded to the eSIM in a Digi device. This profile is no longer tied to a physical SIM card. Identity information becomes digital, not physical.

A profile typically includes:

  • IMSI (your subscriber ID)

  • Carrier settings (APN, network selection, etc.)

  • Security keys

  • Network authentication data

  • Rules for roaming

  • Profile name / provider info

This information gets securely stored on the eUICC (the eSIM chip inside the device).

For Digi eSIM-capable devices, a carrier profile is used to allow the device to:

  • Connect to a chosen mobile carrier

  • Switch carriers remotely

  • Hold multiple carrier profiles at once

  • Remove or install profiles without physical SIM handling