Can You Factory Reset iPhone Without a SIM Card? 5 Ways

Can you factory reset an iPhone without a SIM card? Yes. A physical SIM card is not required to erase an iPhone and restore it to factory settings. The SIM mainly connects your iPhone to a cellular network, while a factory reset removes the data, settings, and content stored on the device.

However, the best reset method depends on whether you know the screen passcode, have access to Wi-Fi, or are locked out of the iPhone. If your device uses an eSIM, you should also decide whether you want to keep or erase the cellular plan. This guide explains how to factory reset an iPhone without a SIM card in different situations and what happens to your SIM, eSIM, and device activation afterward.

What Happens to Your SIM or eSIM During a Factory Reset?

A factory reset does not normally affect a removable physical SIM card because the SIM is separate from the iPhone's internal storage. You can remove the SIM before or after erasing the device.

An eSIM is different because its profile is stored digitally on the iPhone. When you erase an iPhone through Settings, Apple lets you choose whether to keep or erase the eSIM. If you erase it, you may need to contact your carrier to reactivate your cellular plan.

Item	What Happens After Factory Reset?
Physical SIM card	Remains unchanged and can be removed separately
Photos, apps, messages, and settings	Erased from the iPhone
eSIM	Can usually be kept or erased when prompted
Carrier lock	Not removed by a factory reset
Find My/Activation Lock	Turned off after a normal Erase All Content and Settings process
iCloud backup	Remains available in your iCloud account

A factory reset also does not unlock an iPhone from its carrier. Apple states that only the current carrier can unlock a carrier-locked iPhone.

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Before You Factory Reset: Back Up Your Data and Check Find My

Performing a factory reset erases everything on your iPhone permanently. To protect your data and ensure the device is fully usable afterward, you should complete these two preparatory steps.

1. Back Up Your iPhone to Avoid Losing Data

First and foremost, you must back up your personal information. This saves your photos, contacts, apps, and settings, allowing you to restore them on a new device or on this same iPhone after the reset.

• iCloud Backup: The easiest way is to use iCloud. Connect to a WiFi network, go to Settings > [Your Name] > iCloud > iCloud Backup, turn on Back Up This iPhone, and tap Back Up Now.

• Computer Backup: Alternatively, connect your iPhone to a Mac or PC. Open Finder or iTunes, select your iPhone, and click Back Up Now.

2. Check Find My on Your iPhone

You do not always have to manually turn off Find My before using Erase All Content and Settings. During the normal erase process, you may be asked for your Apple Account password, and Find My and Activation Lock are turned off when the device is properly erased.

However, if you plan to restore the iPhone directly through Finder or the Apple Devices app while the device is accessible, Apple requires you to sign out of Find My before the Restore option can be used.

To check Find My, go to Settings > [Your Name] > Find My, tap Find My iPhone. You will see if it is on.

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How to Factory Reset iPhone Without SIM Card (5 Methods)

Choose a method according to your current situation rather than whether a SIM card is installed. Here are 5 methods you can choose.

Your Situation	Recommended Method	Passcode Needed?	Internet Needed?	Computer Needed?
You can unlock the iPhone	Settings	Yes	Not normally for the erase itself	No
You forgot the screen passcode	Forgot Passcode?	No	Yes	No
iPhone is locked or unavailable	Apple Devices/Finder	No	Computer needs internet	Yes
You want to erase it remotely	Find My	No	Yes	No
You forgot the passcode and want guided computer steps	TunesKit iPhone Unlocker	No	Yes	Yes

Method 1. Factory Reset iPhone Without SIM Card via Settings

Using Settings is the easiest way to factory reset an iPhone without a SIM card. Removing the physical SIM does not prevent this option from working.

• Step 1. Open the Settings app and tap General.
• Step 2. Scroll down and choose Transfer or Reset iPhone.
• Step 3. Tap Erase All Content and Settings.
• Step 4. Review the content that will be removed and tap Continue.
• 
• Step 5. Enter your iPhone passcode or Apple Account password if prompted.
• Step 6. If your iPhone uses an eSIM, choose whether you want to keep the eSIM or erase the eSIM and data.

The iPhone will erase its content and restart to the Hello setup screen. Apple currently lists this as the standard way to securely erase an iPhone through Settings.

Method 2. Factory Reset iPhone Without SIM or Passcode via Forgot Passcode?

If your iPhone runs iOS 17 or later, you may be able to erase it directly from the lock screen without a physical SIM or computer. The device must have Find My enabled and be connected to Wi-Fi or cellular service. You also need the password for the Apple Account signed in on the device.

• Step 1. Enter the wrong passcode until the iPhone Unavailable screen appears.
• Step 2. Tap Forgot Passcode? when the option becomes available.
• Step 3. Tap Start iPhone Reset on the Security Lockout screen.
• 
• Step 4. Enter your Apple Account password to sign out of the account on the iPhone.
• Step 5. Tap Erase iPhone.
• Step 6. If you use an eSIM, choose whether to keep or delete the eSIM before erasing the device.

On iOS 15.2 or iOS 16, the lock screen may show Erase iPhone instead of the newer Forgot Passcode? workflow.

A Useful Tip Before Erasing Your iPhone

If you recently changed your iPhone passcode and then forgot the new one, iOS 17 and later may let you temporarily use your previous passcode for up to 72 hours. In that situation, try Forgot Passcode? > Enter Previous Passcode before erasing the entire device.

Method 3. Factory Reset iPhone Without SIM via Apple Devices, Finder, or iTunes

Apple now recommends the Apple Devices app on Windows and Finder on Mac. iTunes is mainly used on older Macs or Windows computers that do not have the Apple Devices app. If you forgot the iPhone passcode, first place the device into Recovery Mode.

• Step 1. Connect the iPhone to your Mac or Windows PC with a USB or USB-C cable. Open Apple Devices on Windows, Finder on a current Mac, or iTunes if Apple Devices is unavailable or the Mac uses macOS Mojave or earlier.
• Step 2. Put the iPhone into Recovery Mode.
• Step 3. Locate the iPhone in Apple Devices, Finder, or iTunes. When you see the option to Update or Restore, choose Restore. The computer will download the required software, erase the iPhone, and reinstall iOS.
• 
• Step 4. Once the process finishes, the iPhone restarts at the Hello screen.

Method 4. Factory Reset iPhone Without SIM Remotely via Find My

A physical SIM is not necessary for Find My, but the iPhone eventually needs an internet connection for the erase command to reach it.

• Step 1. Go to iCloud.com/find and sign in to your Apple Account.
• Step 2. Select the iPhone you want to erase. Choose Erase.
• 
• Step 3. Follow the onscreen instructions and confirm the erase request.

If the iPhone is offline, the erase remains pending and begins when the device connects to Wi-Fi or a cellular network.

If the iPhone was lost or stolen, do not remove it from Find My after remotely erasing it, because doing so removes Activation Lock and could make the device easier for someone else to reuse.

If you are instead erasing an iPhone you sold or gave away, you can remove it from Find My after the erase is completed so the new owner can activate it with another Apple Account.

Method 5. Factory Reset a Locked iPhone Without SIM via TunesKit iPhone Unlocker

The lack of a SIM card is usually not the real obstacle when an iPhone cannot be reset. More often, the problem is that the user has forgotten the screen passcode or the device is stuck on iPhone Unavailable/Security Lockout. In that situation, TunesKit iPhone Unlocker can remove supported iPhone and iPad screen locks by erasing and restoring the device. It supports common screen locks such as 4-digit or 6-digit passcodes, Touch ID, and Face ID, and is designed for cases where users cannot access the device normally.

Step 1. Connect your iPhone

Install and open TunesKit iPhone Unlocker on a Mac or Windows PC. Connect your iPhone to the computer and select Unlock iOS Screen.

Step 2. Put the iPhone into Recovery/DFU Mode

Follow the onscreen instructions to place the iPhone into the required mode if TunesKit cannot detect it normally.

Step 3. Download the firmware package

Confirm that the detected device information is correct, then click Download to obtain the firmware package.

Step 4. Factory reset and unlock the iPhone

After the firmware is downloaded, click Unlock. TunesKit will remove the screen lock and erase the iPhone in the process.

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Can You Factory Reset an iPhone Without SIM or Wi-Fi?

Yes, in some situations.

If you can unlock the iPhone and use Settings > Erase All Content and Settings, a physical SIM is not required. You can also restore a locked iPhone through a computer, although the computer needs internet access to download the required iOS software.

However, the Forgot Passcode? lock-screen method requires the iPhone itself to have an active Wi-Fi or cellular connection. Find My remote erase also requires the device to eventually connect to the internet before the erase can begin.

Therefore, if you have no SIM, no Wi-Fi, and a locked iPhone, using Recovery Mode with a connected computer is usually the most practical official method.

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Can You Activate an iPhone Without SIM After Factory Reset?

In many cases, yes. You can usually connect the iPhone to Wi-Fi during setup instead of relying on a physical SIM card.

However, factory resetting and activating an iPhone are separate steps. Apple states that an iPhone needs a Wi-Fi or cellular network connection to activate and continue setup. Depending on the device, carrier, and configuration, you may also be asked to insert a physical SIM or activate an eSIM.

If you kept your eSIM during the reset, the cellular plan may already be available when you set up the iPhone again. If you deleted the eSIM, contact your carrier if you need help reactivating it.

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FAQs About Factory Resetting iPhone Without SIM Card

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Conclusion

You can factory reset an iPhone without a SIM card, and the missing SIM normally has no effect on the erase process. If you know the passcode, using Erase All Content and Settings is the simplest option. If you're locked out, try Forgot Passcode?, Recovery Mode with Apple Devices/Finder, or Find My depending on your situation.

For users who cannot access Settings because they forgot the screen passcode, TunesKit iPhone Unlocker also provides a guided way to erase the device and remove the screen lock. Before resetting, back up important data when possible and decide whether you want to keep or erase any eSIM installed on the iPhone.