Decided to upgrade my phone, factory reset my a70 and the sensor stopped working. It would get to 18% and then a notice would state unable to register. After trying everything Samsung suggested, and online. I reinstalled android 9 firmware and lo and behold the scanner works perfectly. All tests came back that it's working perfectly as well. So Samsung either a patch needs releasing for a71 or compensation for users . I now have an a71 and the fingerprint sensor is fine on that running Android 10
