What is Intelligent Scan and how to use it?

Last Update Date : Jun 27. 2018


Intelligent Scan (biometric authentication) combines iris scan and face recognition to allow convenient unlocking and in some cases provides enhanced security for certain authentication services.


  • What are the benefits of Intelligent Scan? 
  • How to setup Intelligent Scan?
  • What are the common scenarios of using Intelligent Scan and what to do about it?




  • Unlock the screen without problems even when the surroundings are dark or too bright
  • Low light environment: iris scan will be activated if face cannot be recognised
  • High light environment: face scan will be activated if iris cannot be recognized


Please note: For payment or financial services, iris scan will be activated first, followed by face scan to prevent spoofing. 


Set up


  1. Go to Settings > Tap Lock screen and security > Tap Intelligent Scan.
  2. Unlock the screen using the pre-set screen lock method. If you have not set a screen lock method, create one.
  3. Read the on-screen instructions and tap CONTINUE.
  4. Register your face and irises. When an intelligent scan unlock screen appear, tap TURN ON to use your face and irises to unlock the screen.
Common scenarios


What you need to do

Intelligent Scan cannot be used for the first time after powering on the device.

This is a deliberate setting for device security.


To use the device, you must unlock the screen using the pattern, PIN, password you set when registering your face and irises. Be careful not to forget your pattern, PIN, or password.

If irises and face are not recognised.

Unlock the device using the pattern, PIN, or password you set when registering the irises, and then re-register your irises.


If your pattern, PIN, or password is forgotten, you will not be able to use the device if you don’t reset it. 

If you change screen lock method to swipe or none.

All of your biometric data will be deleted. If you want to use your biometric data in apps or features, such as Samsung Pass and Samsung Pay, you must register your biometric data again.

If you forgot password / unable to unlock your Samsung phone.

Please visit Find My Mobile to do a password reset.

Read step by step guide to unlock your Samsung phone.  

How to delete Iris / Face data.

1.  Go to settings > Lock screen and security.

2. Tap the Iris Scanner / Face Recognition > Unlock the screen using the preset screen lock method.

3.  Tap Remove iris / face data > Tap REMOVE.


Once the registered data are deleted, all the related features will also be deactivated.

Circumstances where Iris Scanner may not work properly.

Device related

·   Your unofficial screen protectors are blocking the Iris scanner.

·   Dirt and debris on the iris camera, LED sensor or proximity sensor will affect Iris scanner performance.

·   Device is not stable, or adjusted lower than your face.


Non-device related

·   Sunglasses, contact lenses.

·   Puffy eyes.

·   Strong light or no-light conditions.

·   Moving from bright light to low-light conditions suddenly.

·   Eye disease affecting your irises, or when you’ve undergone intraocular lens implant surgery or eye surgery that scars the irises.

·   Laser-assisted vision correction surgery such as LASIK or LASEK, may alter the shape of cornea.

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