Setup

Explains that an eSIM is a digital SIM built into the iPhone and how to activate one during or after setup, using whichever method the carrier supports.

Overview of the ways to move to a new iPhone: Quick Start, iCloud, or a backup from Finder, Apple Devices or iTunes. Suggests having a backup and your Apple Account password ready.

Explains how to set up a new iPhone or iPad from a current iPhone running iOS 11 or later (or iPad running iPadOS 13 or later). Both devices should be updated and kept close together.

Covers what to try when a device will not activate or shows an activation server or unsupported SIM alert: restart, switch to Wi-Fi, wait and retry, or activate with a computer.

Checklist for when an eSIM will not activate: requirements, basic restarts, carrier settings updates and what details to have ready before calling the carrier.

Describes options for using data abroad with an eSIM: roaming on your own carrier, buying a travel eSIM and switching back when you return.