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You are here: Home / Tutorials / How to Lock Screen on iPhone: A Step-by-Step Guide

How to Lock Screen on iPhone: A Step-by-Step Guide

December 12, 2025 By Matthew Burleigh

How to Lock Screen on iPhone

Locking your iPhone screen is a simple yet essential task. It involves just a few taps or button presses to secure your device, keeping your data safe from prying eyes. By following these steps, you’ll ensure your iPhone is locked quickly and efficiently, so you can have peace of mind whenever you’re not using it.

Step-by-Step Tutorial on How to Lock Screen on iPhone

Securing your iPhone by locking the screen is a straightforward process. Here’s a step-by-step guide to make sure you do it right.

Step 1: Press the Side Button

Locate and press the side button on your iPhone.

The side button is usually found on the right side of your device. A simple press will instantly lock your screen, turning off the display and securing your phone.

Step 2: Use AssistiveTouch

Enable AssistiveTouch by navigating to Settings > Accessibility > Touch > AssistiveTouch, then tap the icon and select "Lock Screen."

AssistiveTouch is a useful feature for those who might find pressing the side button challenging. It creates a virtual button on your screen that you can use to lock the screen with a single tap.

Step 3: Set Auto-Lock

Go to Settings > Display & Brightness > Auto-Lock, and choose your preferred time interval.

Auto-lock automatically locks your iPhone after a certain period of inactivity. This feature is great if you often forget to lock your screen manually.

Step 4: Use Siri

Activate Siri and say, "Lock my screen."

Siri can be your quick helper in locking the screen. Just invoke Siri by holding the side button or saying, "Hey Siri," and give the command.

Step 5: Additional Security

Ensure Face ID or Touch ID is enabled by going to Settings > Face ID & Passcode or Touch ID & Passcode.

While locking the screen is important, having additional security through biometric authentication provides extra peace of mind.

Once you’ve locked your iPhone screen, your device becomes immediately secured. This means no one can access your apps or data without your passcode, Face ID, or Touch ID, ensuring your personal information stays private.

Tips for Locking Screen on iPhone

  • Adjust the auto-lock time to a shorter duration if you want your screen to lock more quickly.
  • Regularly check for and install any iOS updates to keep your security features up to date.
  • Consider using a strong passcode in addition to biometric locks for added security.
  • Familiarize yourself with the AssistiveTouch feature if you have difficulty using physical buttons.
  • Avoid sharing your passcode with others to maintain the privacy of your device.

Frequently Asked Questions

Why can’t I lock my iPhone screen?

If your screen isn’t locking, check if there are issues with the side button or settings. Restarting your device can sometimes solve minor glitches.

How do I change the auto-lock time?

Navigate to Settings > Display & Brightness > Auto-Lock. Choose a time that suits your usage habits.

Can I use a different method to lock my iPhone if the side button is broken?

Yes, AssistiveTouch is a great alternative that allows you to lock the screen using a virtual button.

What happens if I forget my passcode?

If you forget your passcode, you may need to restore your device using iTunes or Finder, which will erase your data. Make sure you have a backup.

Is using Face ID or Touch ID safer?

Both Face ID and Touch ID provide excellent security and are more convenient than passcodes alone. They protect your device from unauthorized access.

Summary

  1. Press the side button.
  2. Use AssistiveTouch.
  3. Set auto-lock.
  4. Use Siri.
  5. Ensure additional security with Face ID/Touch ID.

Conclusion

Locking your iPhone screen is a fundamental step in safeguarding your personal information. With several methods available—from the traditional side button to the voice-activated Siri command—you can choose the one that fits your lifestyle best. Remember, maintaining security doesn’t stop at just locking the screen. Regularly updating your iOS and keeping a strong passcode go hand in hand with locking practices.

If you haven’t explored features like AssistiveTouch or auto-lock, now might be the perfect time to dive in. Why not try enabling these features today? Not only will it give you a more customized experience, but it’ll also add layers to your device’s security. So, go ahead and take control of your iPhone’s safety with these easy steps and tips. After all, peace of mind is just a lock screen away!

Matthew Burleigh
Matthew Burleigh

Matt has been working with WordPress and creating content using this powerful content management system for years. While he has written about many other tech topics, WordPress is one of his favorites.

You can read his full bio here.

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