You can unlock your phone with Siri, but only in a specific way: Siri itself cannot bypass the lock screen or enter your passcode. Instead, Siri can perform tasks, like opening an app, that trigger Face ID or Touch ID authentication, granting you access without tapping the screen.
Can you unlock your phone with Siri?
Many people arrive here believing Siri can unlock an iPhone that has a forgotten passcode without erasing the device. That is not possible. Siri cannot bypass the passcode screen. What Siri can do is initiate actions on the lock screen that prompt Face ID or Touch ID. This gives you hands-free access without typing your passcode, as long as your biometrics work.
How to allow Siri when your iPhone is locked
Before Siri can respond to any command from the lock screen, you must turn on the correct setting. This is the essential first step.
- Open the Settings app on your iPhone.
- Tap “Siri & Search.”
- Find the toggle labeled “Allow Siri When Locked” and turn it on.
With this enabled, Siri will listen for your voice and respond even while the phone is locked. Without it, Siri will only work after you manually unlock the device.
Setting up Hey Siri and voice recognition
To activate Siri hands-free from the lock screen, you need to train the phone to recognize your specific voice. This prevents other people from waking Siri on your device.
- Tap “Set Up Now” and follow the onscreen prompts. You will be asked to say a few phrases so Siri learns the sound of your voice.
- Repeat each phrase as instructed. The setup takes less than a minute.
Once voice recognition is trained, saying “Hey Siri” will activate the assistant even when your iPhone is face-down or in your pocket, provided the “Allow Siri When Locked” setting is on. You can enable the 'Type to Siri' option in settings for situations where speaking out loud is not ideal. To enhance security, you can customize Siri's activation phrase to something unique and less likely to be spoken unintentionally. You can review and delete stored Siri voice recordings to maintain privacy.
Using Siri to open apps and perform tasks from the lock screen
After the settings above are in place, you can use Siri to open apps and complete tasks without touching the phone. Siri will respond, but before the app actually opens, your iPhone will prompt for Face ID or Touch ID. This is the security check that unlocks the phone for that specific action. Siri may ask you to unlock your phone manually if it has been restarted or hasn't been unlocked in a while.
You can also ask Siri to send a message, make a call, or start a timer from the lock screen. Each action that requires access to your personal data will trigger biometric authentication. If your face or fingerprint does not match, Siri will not complete the task. This method works well when your hands are full or you are in a hurry, and it keeps your device secure.
What to do if you forget your iPhone passcode
If you forget your iPhone passcode, Siri cannot help you unlock it. The only official method is to erase the device, which removes all data. However, if you have iOS 15.2 or later, you can reset directly from the lock screen without a computer, provided you have Find My turned on and an active cellular or Wi-Fi connection.
- Attempt to enter your passcode until the “[Device] Unavailable” screen appears.
- Tap “Forgot Passcode?” This option only appears if Find My is enabled and you have a network connection.
- On the “Security Lockout” screen, tap “Start [Device] Reset” to confirm.
- Enter your Apple ID password to sign out of your Apple Account on the device.
- Tap “Erase [Device]” to permanently delete all data and settings. If you are using an eSIM with iOS 17 or later, you can choose to keep or delete the eSIM during this step.
- When the device restarts, follow the onscreen instructions to set it up as new or restore from a backup.
This process is the only verified way to regain access to a locked iPhone without the passcode. It erases everything, so regular backups are essential. If you need help setting up and managing voicemail after restoring your device, Siri can assist with that too, just say “Hey Siri, call voicemail” once you are back in.
Frequently Asked Questions
Can Siri unlock Android phones?
No. Siri is exclusive to Apple devices. Android devices have their own virtual assistant, Google Assistant, which can perform similar tasks but also cannot bypass the lock screen passcode or biometrics.
Does voice unlock work without Face ID or Touch ID?
No. Siri cannot unlock your phone using only your voice. Every action that requires access to your phone’s content will prompt for Face ID or Touch ID. Voice alone is not a substitute for biometric authentication.
How do I reset a disabled iPhone without a computer?
If you see the “Security Lockout” or “[Device] Unavailable” screen on an iPhone running iOS 15.2 or later, you can reset it directly. You need Find My turned on, an active internet connection, and your Apple ID password. Tap “Forgot Passcode?” then “Start Device Reset” and follow the prompts to erase the device.
