Personalising
Changing the alternative password
You can change the password that you use as an alternative to scanning your fingerprints. On the Apps screen, tap Settings →Finger Scanner →Change backup password. Scan a registered fingerprint or tap 
.
Enter a new password and tap CONTINUE.
Enter the password again and tap OK.
Unlocking the screen with fingerprints
You can unlock the screen with the registered fingerprints.
On the Apps screen, tap Settings →Finger Scanner →Screen lock →Fingerprint. Alternatively, on the Apps screen, tap Settings →Lock screen →Screen lock →Fingerprint.
Verifying the Samsung account password
Use fingerprints to verify your Samsung account password. You can use a fingerprint instead of entering your password, for example, when you purchase content from Galaxy Apps.
On the Apps screen, tap Settings tap the Verify Samsung account and tap CONFIRM.
→Finger Scanner →Verify Samsung account, and then switch to activate it. Enter your Samsung account password
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