The fingerprint scanner and password on my Galaxy Note 4's lock screen only occasionally responds to input. There is not feedback of any kind when I swipe my finger over the home key; No vibrations, no images, no text, nothing. When I go to input my back-up password, the keyboard does not even appear. It does eventually start responding again, and I have been able to change my lock. If it's set to just the password, the keyboard appears upon wake up just long enough to input a couple characters before vanishing again (incidentally, the cursor can still be moved). PINs and patterns function normally, as far as I can tell, and I have not tried swiping yet.
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