How to Activate a Replacement iPhone in 2026 [Detailed Guide]

Many people replace an older iPhone with a newer model, and the first step is getting the replacement device activated. In most cases, that means connecting to Wi-Fi or cellular service and finishing Apple’s setup screens.

You can also finish setup with a computer and cable, although newer Macs use Finder and newer Windows PCs may use the Apple Devices app instead of iTunes.

This article covers the main ways to activate a replacement iPhone, plus what to check if setup or activation gets stuck.

How to Activate a Replacement iPhone?

Activating a new or replacement iPhone is usually straightforward once you have Wi-Fi or cellular access, your Apple Account details, and the correct SIM or eSIM information ready.

1. Using Wi-Fi or Cellular Connection

Just connect the phone to a Wi-Fi network or cellular data and follow a few easy steps. First, ensure the following requirements are met.

• An active Wi-Fi network is usually required during setup unless your carrier and model support activation over cellular or eSIM-only activation.
• If using the cellular network , the device must be linked to an active cellular plan from the relevant service provider.
• If you are moving your number from an older iPhone, be ready to transfer the SIM or eSIM during setup or through your carrier.
• Check to see if the device is charged and that your old iPhone is nearby if you want to use Quick Start.

Now perform these steps.

1. If you are trading in, returning, or replacing an older iPhone, remove it from your Apple Account and turn Find My iPhone off before you hand that phone over.

Note: If you haven't used an iPhone before, skip to step 2.

2. To turn on the new iPhone, press and hold the Power button (top-right edge).

Note: Some replacement iPhones use a physical SIM, while others use eSIM. If your carrier uses eSIM Quick Transfer, keep both iPhones nearby with Bluetooth on and follow the on-screen transfer steps.

3. Confirm your phone number on the Activation screen, then select Next.

Note: If confirmation does not work, refer to this Apple support page.

4. Tap Next after entering the account PIN or the last four digits of the account owner's Social Security Number (SSN).

Note: If you're activating a new phone, make sure the old one is turned off and wait a few minutes for it to be deactivated.

Proceed to step 4 if activation was successful; if not, follow the on-screen instructions or contact your carrier or Apple Support.

5. To select a language, swipe up from the bottom of the screen, then tap the country or region.

Note: If your device has a Home button, hit it to open the app.

6. Select Set Up Manually from the drop-down menu.

Note: To use Quick Start, keep your old iPhone nearby, ready to use, and updated enough to follow the transfer prompts.

7. Tap the Wi-Fi network, then tap Join after entering the Wi-Fi password.

Note: If you're using Verizon's network, select Use Cellular Connection.

8. Choose your Wi-Fi network and after that click on next.

Continue from the Data & Privacy screen.

9. Tap Continue when prompted to set up Face ID or Touch ID, then follow the on-screen instructions.

10. Create a passcode, then confirm it again. To that enter it again.

11. Select a configuration option:

Note: It can take up to 30 minutes to restore your backup.

12. Tap Next after entering your Apple ID and password.

Note: If you already use your Apple ID on another device, Apple may send a verification code to a trusted device or trusted phone number before setup can continue.

If you don't have an Apple ID or have forgotten your sign-in details, you can use your registered email or phone number to reset it.

13. Review the Terms and Conditions if required, then hit Agree.

14. Tap 'Continue' or 'Customize Settings' from the Express Settings screen.

15. Continue from the Keep Your iPhone Up to Date menu.

16. Tap 'Continue' or 'Not Now' from the iMessage & Facetime interface.

17. Tap 'Continue' or 'Set up Later in Settings' from the Siri screen.

18. Tap 'Continue' or 'Set Up Later in Settings' from the Screen Time screen.

19. Tap 'Share with App Developers' or 'Don't Share' from the App Analytics screen.

Continue from the True Tone Display screen.

20. Select Light or Dark from the Appearance menu, then touch Continue.

21. Select Standard or Zoomed from the Display Zoom menu, then touch Continue.

22. Get Started by swiping up or tapping the Get Started button to finish the entire set-up

23. Confirm that the top of the screen's status bar changes from 'No Service' to your designated carrier name.

Note: This procedure could take up to two minutes.

2. Activate the iPhone using iTunes

You can also activate your phone with a computer. Older Windows instructions may still say iTunes, but on current Macs you usually use Finder, and on newer Windows PCs you may use the Apple Devices app.

To use a computer to activate the replacement iPhone, do the following steps.

1. In your iPhone, insert the SIM card. When you buy a new iPhone directly from a carrier, the SIM card is normally installed for you. You'll have to do so if you don't already.

Note: Your carrier must activate the SIM card.

It might be possible for you to transfer the SIM card from your old handset to your new one if you're on the same provider and both iPhones use the same size SIM card.

2. Turn your iPhone on. Hold down the Sleep/Wake button until you see the Apple logo on the screen.

3. Follow the instructions on the screen. You will be guided through the procedure by the setup helper.

4. Choose a language. To do this, go to your device's settings and select the language you want to use.

5. Choose a country or region from the drop-down menu. By tapping the country or location where you'll be using your device, you can do so.

6. Connect to iTunes by tapping the button. This will appear beneath any wireless networks that are available.

7. Connect your iPhone to your computer through a USB cable. Plug the USB end of the USB cable into your computer and the other end into the charging connector on your iPhone that came with it.

8. On your PC, launch iTunes. If it doesn't start automatically when you connect your device, do so.

9. On your iPhone, press the Home button. Once iTunes recognizes your iPhone, an icon will appear at the top of the screen.

Note: Make sure the computer is using the latest available Apple software for your setup path, whether that is iTunes, Finder, or Apple Devices.

10. Choose a configuration option. You have two options: Restore from iTunes Backup to restore the settings and apps from a previous iTunes backup to your replacement iPhone, or Set Up as a New iPhone to start from the factory settings.

11. Select Get Started from the drop-down menu. This kicks off the activation procedure.

12. Select Sync. Syncing your iPhone with your iTunes collection is as simple as that.

Note: It is necessary to have access to the internet.

13. On your iPhone, enter your Apple ID and password. Do so in the fields that have been labeled.

14. Now, tap the button Next. It is located in the screen's upper-right corner. The "Terms and Conditions" of Apple are displayed as a result of doing so.

15. To read them, scroll down.

16. Agree by tapping the button. It is in the screen's lower-right corner.

17. If prompted, select a backup option. The one with the most recent data and time should be chosen.

18. Your device will start downloading the iCloud backup. Your settings, apps, and data will be reinstalled after it is restored.

Your phone has been successfully activated and set up when the Lock screen appears.

What if I Cannot activate my iPhone?

Even with the steps above, replacement iPhone activation can still fail because of SIM issues, eSIM transfer problems, activation lock, or a temporary Apple activation-server error. Here’s what to check if setup does not finish normally.

• No Sim Card Installed
• Check Activation Status
• Connection Issues

Issues related to the SIM card and internet connection can often be resolved with straightforward measures. You can even set up iPhones without SIM cards.

However, Activation Lock is more serious than a weak signal or missing SIM card. If the iPhone is still tied to another Apple Account, you will need either the correct Apple Account credentials or Apple’s proof-of-purchase process.

1. Use LockAway to activate iPhone with Activation lock

LockAway is a professional tool for instantly locking iPhone activation. So, if your iPhone continues getting stuck on the activation lock screen, give LockAway a try; it does not disappoint.

Several users have tried and tested the procedure, and it has been proven to work 100% of the time.

What is LockAway and how do I use it?

• Install LockAway on your PC and run it.
Bypass iCloud Activation Lock in 20 mins
FREE DOWNLOAD
FREE DOWNLOAD
FREE DOWNLOAD
• Connect the computer to the phone.
• To jailbreak your iPhone, select Bypass Activation Lock mode and follow the instructions.
• To remove the activation lock, simply click on Start.

Advantages:

• Remove the activation lock without the use of an Apple ID or a password.
• Remove the activation lock completely and permanently.
• All iOS versions are supported, as well as iPhone 6 and iPhone X.
• It is safe and secure, and it safeguards your personal information.

2. Remove Activation Lock Officially

If you cannot remember your Apple ID password and none of the ways in this article work, Apple may still be able to help you activate the device officially.

You must have the following things to officially activate the phone.

• I. Some proof that you are the device's lawful owner.
• II. Proof of purchase is required. You're seeking the original receipt containing the date, time, serial number, and name of the purchaser.
• III. You must provide proof that you now possess the iPhone officially. An original owner’s email, iMessage, or other documentation is helpful.

If you need assistance removing Activation Lock and have proof of purchase or related documents, you can submit an activation lock support request on Apple's website.

Note: If your iPhone is stolen, Apple will not assist you in removing the activation lock. Make sure you have the right documents and evidence before contacting Apple officially.