This issue just started for me 4 January. I have tried all of the above.... SAFE MODE, a master reset, and the only thing that works is shutting off the fingerprint scanner. How can you have a phone for 21 months and as ll of a sudden this starts happening. How do you samsung exoect people to sownd their hard earned money on a product that offers substandard security. I think you should at the least ckme out with a fix for this phone. I shouldn't have to turn features that you provide off t on have a phone that works.
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