I bought my Note 10+ on Tuesday night, set up the fingerprint sensor and everything was fantastic. It worked for about 24 hours, and now will not even recognize that a finger is on the sensor. I've cleared cache, factory reset, changed the sensitivity, and anything else that I have found in these forums to try. It simply won't recognize that there is a finger there to scan. I'm so frustrated and disappointed that Samsung's "best ever phone" could only manage 24 hours of proper functionality. Any help would be greatly appreciated.
Apparently you placed a screen protector.
It wouldn't just stop working like that.
Samsung recently released a security patch especially for fingerprint sensors to make it more secure and even faster. So yeah, if you placed a cheap protector then just remove it and I'm sure it'll work.