I was hoping I wasn't the only one. I have the same issue too only my phone turns off whenever I try to use the fingerprint sensor be it registering fingerprints, trying to access samsung pass, or just plain enabling fingerprint unlock. I've used the hardware test on the phone by dialing *#0*# and under sensors you can select fingerprint sensor. Sometimes this test works but most of the time if just turns off the phone. I've taken it to an authorized service center and they couldn't do anything about it. They tried to reset the phone but they said the phone wouldn't accept the binary files they were using. I've gotten by so far by disabling fingerprints all together. The phone will sometimes turn off but it's lets frequent.
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