I have a old Samsung 7 that is no longer active I have gone into this phone because I use it for the old files I have in it I've never changed the password it's a pin and I need to get in it I have three tries left and it's telling me it's the wrong password I don't know but I can't get in it no matter what I do again I have a new phone this is an old phone that's let me for the last 2 years get into it when I needed it now it won't I don't know what to do and I can't even turn the phone off without a PIN I charged it up and it's on and now I can't shut it off without a PIN and I never change the pin it's always been the same again it's not a tablet it's a phone help me please