Once located, the menu on the left will expand with the option to “Unlock My Screen.” Click on it and when the device unlocks, immediately reset the finger scanner. Then visit Samsung Find My Mobile, login with your Samsung account, and click on Locate My Device on the left side menu.
In some cases, even signing in with the Google account has not worked.Once you do, reset the finger scanner and make a note of your backup password once again. Keep trying to input the password a few times (up to 10 times in some cases) until you are prompted to sign-in using your Google account. For some users, the backup password isn’t recognized either.First, make sure that you make a note of the backup password when you setup the finger scanner, and when the scanner fails and the device asks for the password, it should be enough to unlock the device.Until then, a few workarounds are available. The issue with the fingerprint scanner seems to be a software bug, and a future update should fix this issue.