To access and manage your cellular settings on an iOS device with Dual SIM, you'll need to choose a phone number first.
For steps, see Using Dual SIM with an eSIM > Manage cellular settings (Apple Support).
Updated
09/14/2023 12:02 PM
To access and manage your cellular settings on an iOS device with Dual SIM, you'll need to choose a phone number first.
For steps, see Using Dual SIM with an eSIM > Manage cellular settings (Apple Support).