What is Intelligent Scan and how to use it?

Last Update Date : Apr 06. 2018
intelligent scan


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?


BenefitsClick to Expand

• 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 upClick to Expand
1 Go to Settings
2 Tap Lock screen and security
lock screen & security
3 Tap Intelligent Scan
intelligent scan
4 Unlock the screen using the pre-set screen lock method. If you have not set a screen lock method, create one
confirm pattern
5 Read the on-screen instructions and tap OK
6 Register your face and irises

Tap continue to set up Intelligent Scan

secure lock

Set a secure screen lock

tap continue

Tap continue

register your face

Register your face

register your iris

Register your Irises

7 When an intelligent scan unlock screen appear, tap TURN ON to use your face and irises to unlock the screen
turn on intelligent scan

Turn on Intelligent Scan

enable intelligent scan

Enable Intelligent Scan unlock

Common scenarios:

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

Where to buy:

Find out where to buy Samsung Galaxy S9 and S9+

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