THE SHORT ANSWER

Start with this check.

With the old iPhone unlocked, connected to Wi-Fi and Bluetooth enabled, place the new one nearby during setup. Follow Quick Start and check which transfer method you select.

Have a backup and Apple Account access before switching. Keep the old phone until the new one is verified. Resetting a configured iPhone deletes its contents; it is not a harmless test.

Which situation matches yours?

The old iPhone is available and worksConsider Quick Start and direct transfer.
I cannot access the old deviceYou need an existing backup or already synced data.
The new phone already has informationPreserve it before considering setup again.

Let’s go step by step.

0 of 5 checks completed

Mark each check to keep track during this visit.

01

Prepare access and content

Check the old passcode, account access and a recent backup. List essential photos, messages, files and apps. Choose a period when neither phone is needed and keep power available.

What to look for

Resolve account access before relying on the new device to receive verification codes.

Read the official documentation
02

Start setup between your own devices

With the old phone on its Home Screen, Wi-Fi connected and Bluetooth enabled, turn on the new one nearby and follow the setup prompt. Verify these are your devices. If the prompt disappears, consult Apple’s restart guidance.

What to look for

Expect the device setup process, not links from supposed migration services.

Read the official documentation
03

Choose the method knowingly

Read whether you are downloading from iCloud or transferring directly. Direct transfer occupies both devices; downloading from a backup may continue after setup. Keep the conditions requested by the assistant.

What to look for

Reaching the Home Screen does not prove every app or photo has finished downloading.

Read the official documentation
04

Check phone service and important apps

Complete SIM or eSIM steps offered by your carrier. Test calls and texts separately from content copying. Open email, WhatsApp and authenticators and complete access; a transferred icon does not guarantee activation.

What to look for

Missing service needs your carrier. An app problem needs that service’s instructions while you retain the old device.

05

Verify before retiring the old phone

Open photos from several dates, a video, contacts and important files. Check sync and download progress. Keep a pending-items list and valid backup before preparing the old phone for sale or handover.

What to look for

For a missing item, determine whether it exists on the old phone, in a backup or in iCloud. Do not erase the sole source to repeat a test.

Read the official documentation

When to stop and ask for help

For repeated interruptions or account access failure, contact Apple with versions and the failing stage. Avoid repeatedly erasing a destination without reviewing newly created content.

Does a step differ from what you see? →

Common questions

Does Quick Start work without the old iPhone?

Setup using the previous device requires it to be available. Otherwise review backups and Apple’s other methods.

Do visible photos prove transfer is finished?

Open full files and review download status. Thumbnails do not verify all content.

Does eSIM always activate automatically?

It depends on devices and carrier. Follow the offered process and test calls and texts.

Sources and review

Project owner: Eudald Ferrer Ibáñez. Report a correction.

This guide uses official documentation and our own troubleshooting sequence. Menus may change between versions. Documentation reviewed on September 28, 2026; practical device testing is still pending.

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