Originally Posted by
B. Diddy Welcome to Android Central! That's a little odd, because a backup PIN is usually just for when you also use the fingerprint sensor. An unlock pattern is its own thing, and usually doesn't let you use a backup PIN if you forget it.
Try using Samsung's Find My Mobile to remotely change your password:
https://findmymobile.samsung.com/ I just want to say a huge thank you for this advice, I had the same problem with my device, I followed your instructions and not only did it unlock my tablet and get rid of the silly directional swipe thingy my tablet also mysteriously found 3.2 gigs of storage space - I love the updates too, my tablet is running so much better now in fact it feels like it did when I first got it three years ago. Thanks again.