Can I reset a forgotten Galaxy Note 3 PIN using Android Device Manager?

In short, you can’t use Android Device Manager (ADM) to reset your forgotten lock screen password.

The Lock feature in Android Device Manager is used to set a new password for devices that haven’t had their screen lock set.

If you use the Lock feature on a phone that has screen lock, you’ll most likely get the following message in ADM.

“Since Google has verified that a screen lock is already set, the password that you entered won’t be needed.”