Really wasn't what was happening with me. I would hover my finger over the area, not touching the glass, I feel the phone vibrate like it's reading it and then get the errors.That is why I stress just holding your finger on the sensor until the phone unlocks! That's the only thing that I was doing differently. On my note 4 and s8+ I could basically just tap the fingerprint sensor and they would open asap. On this under screen joint it takes a second and I was getting error messages about holding down harder and longer then it just died completely. The cause had to be me being accustomed to the older model sensors. I haven't had any problems since I hold the sensor until it opens and stopped being hardheaded.
There's a thread on XDA, some stating the same issues. They were hoping the update on the 22nd fixed it. But I really think that's when my probs began.
People were saying electricity or magnetic pulses from your body is what triggers it. So could the sensor be too amplified is why the errors? Who knows. Beyond my pay grade...


