I left my galaxy tab A on whilst I attended a short meeting. On my return it must have timed out. When I tried to open the home screen there was a little lock and underneath it asked me to swipe to unlock. I did this , however it then asked for a password, for which I nave no idea what it is. It won't power off or open up? There isn't even an option to reset password?! Any ideas ?
Did you Tab have a screen lock on it before your meeting?
Do you have Find My Mobile set up? If you head HERE you can log in with your Samsung Account and remotley unlock your tablet. This will remove any screen locks and you'll be able to set up a new one.
