I've been using the Note 9 for a little over a month now and the finger print scanner has worked great for the most part until recently. It seems no matter what I do it's finicky and unreliable a good portion of the time. What the heck is up with this? I did notice if there's ANYTHING at all on my fingers or the scanner, it doesn't work at all. But still, even then. My old device never really had that much of a problem like this with the scanner.