Samsung Galaxy Tab S2 User Manual page 211

2. Tap Screen lock type > Password.
Note: For credential storage, you can also use Pattern, PIN, or Fingerprints screen lock types. See
Screen Lock.
3. Enter a new password (at least four characters long, including at least one letter) for the
credential storage, tap Continue, confirm the password, and then tap OK.
4. Select your display option for notifications on the lock screen, and then tap Done.
 The password is set, allowing secure credential storage.
Settings 202