Somehow I have 'caught the infection' of an unwanted swipe login which does not work, or let me in. Every swipe, repeated many many times (up, down, left right) is reported as 'incorrect'. Fortunately after numerous fails it offers me the option to enter a PIN CODE which does work, so eventually I can access Settings. I expected to be able to remove/disable the swipe login there but I cannot, as it asks for swipe again and without the PIN option --- a ridiculous Catch-22 impossibility. How do I get rid of swipe login without a system reset (no thankyou!) PS I meant to add that my tablet is Samsung Tab A with Marshmallow, a few months old.