How to factory reset iPhone quickly and securely with step-by-step methods to erase all data via Settings, a computer, or without a passcode.
By: Bryan Tropeano

Whether you’re selling your device, troubleshooting persistent software issues, or simply starting fresh, knowing how to factory reset iPhone is essential. This process erases all personal data and settings, returning your iPhone to its original, out-of-the-box state. Before you begin, it’s important to understand the different reset methods, what to expect, and how to prepare your device.

When Should You Factory Reset Your iPhone?

A factory reset can be useful in several situations:

  • Selling or trading in your iPhone to ensure personal data is removed.

  • Fixing performance problems that have not improved with basic troubleshooting.

  • Resolving persistent bugs after software updates.

  • Starting fresh after years of use to free up space and reset settings.

In some cases, a full reset might not be necessary. For example, clearing your app and browser data can often resolve slowdowns. If that is all you need, you might try a quick cleanup first. Our guide on How to Clear Cache on iPhone explains how to do this without erasing everything.

Back Up Your Data First

Before performing a factory reset, create a backup so you can restore your data later. You can back up your iPhone in two main ways:

iCloud Backup

  1. Connect your iPhone to Wi-Fi.

  2. Go to Settings > [Your Name] > iCloud > iCloud Backup.

  3. Tap Back Up Now and wait for the process to finish.

Computer Backup (Mac or PC)

  • Mac with macOS Catalina or later: Use Finder to select your iPhone and choose Back Up Now.

  • Mac with macOS Mojave or earlier / Windows PC: Use iTunes to back up your iPhone.

How to Factory Reset iPhone Through Settings

This is the most common method and works if your device is functioning normally.

  1. Open the Settings app.

  2. Tap General.

  3. Scroll down and select Transfer or Reset iPhone.

  4. Choose Erase All Content and Settings.

  5. If prompted, enter your passcode or Apple ID password.

  6. Confirm your choice and wait for the reset to complete.

Your iPhone will restart and display the initial setup screen.

How to Factory Reset iPhone Using a Computer

If your iPhone is unresponsive or you cannot access the Settings app, you can reset it using a computer.

On a Mac (macOS Catalina or later):

  1. Connect your iPhone to your Mac via USB.

  2. Open Finder and select your device.

  3. Click Restore iPhone.

  4. Confirm the action and wait for your iPhone to reset.

On a Windows PC or Older Mac:

  1. Connect your iPhone and open iTunes.

  2. Select your device.

  3. Click Restore iPhone and follow the prompts.

How to Factory Reset iPhone Without a Passcode

If you have forgotten your passcode, you will need to put your iPhone into Recovery Mode and restore it:

  1. Connect your iPhone to a computer.

  2. Force restart your device:

    • iPhone 8 or later: Press and quickly release the Volume Up button, press and quickly release the Volume Down button, then press and hold the Side button until you see the recovery mode screen.

    • iPhone 7 series: Press and hold the Volume Down and Side buttons together until recovery mode appears.

    • iPhone 6s or earlier: Press and hold the Home and Top (or Side) buttons together.

  3. In Finder or iTunes, select Restore.

After the Factory Reset

Once the reset is complete, your iPhone will reboot as if it were brand new. You can:

  • Set it up as a new device.

  • Restore from your iCloud or computer backup.

  • Hand it off to the new owner.

Important Notes and Warnings

  • A factory reset is permanent. There is no way to retrieve erased data unless you have backed it up.

  • Make sure you sign out of Apple ID and iCloud before selling your iPhone to avoid Activation Lock issues.

  • If your iPhone is managed by a workplace or school, you may need admin approval before resetting.

Final Thoughts

Learning how to factory reset iPhone is a valuable skill for both troubleshooting and security. By backing up your data, following the correct reset method, and understanding what happens afterward, you can ensure a smooth and secure reset process. And remember, if you are only trying to improve speed or fix minor issues, you might start by learning How to Clear Cache on iPhone. It is a simpler step that could save you from erasing everything.

About the Author: Bryan Tropeano is a senior producer and a regular reporter for NewsWatch. He lives in Washington D.C. and loves all things Tech.

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