Phone accidentally locked, how can I get it unlocked?

[AC Question]

Phone accidentally locked

While at dinner tonight my husbands phone was being played with by a child who tried to unlock multiple times thus locking the phone. My husband can't remember the back up number. Is there a way to unlock that will not cause loss of all data/require reset?

 

[B. Diddy]

Re: Phone accidentally locked

Welcome to Android Central! Which phone? Try using Android Device Manager to remotely reset the password: https://support.google.com/nexus/answer/3388218?hl=en