My HTC One M9 has a pattern lock that I forgot (I know, dumb). Used Android Device Manager. No prompt So the screen actually appears saying "Locked by Android Device Manager" but I have absolutely no prompt to type or a keyboard or anything. Hitting the home button just brings the pattern back up. I would much prefer not having to factory reset this phone. Any help would be appreciated. Thanks.
What os version is your phone? If it's kitkat, it should have a Forgot pattern below it if you don't draw the correct one.