Android Device Manager has henceforth received a new feature,brings the ability to remotely lock your device with a new password.
In fact following the release of Android Device Manager a month ago bringing “find
my phone” functionality which allows users to either find their device or remotely wipe, henceforth with the new feature , you have the ability to remotely lock your device with a new password.
This means, you can now log in through the ADM’s web interface and force a password change.