I have a new LG Stylo 4 with Android Oreo 8.1. Sometimes, when I'm trying to draw the lock pattern, the dots all jump around a bit, making it almost impossible to draw the pattern correctly. Why does it do this, and is there any way to prevent it from happening?

  • Without more details, this might be too broad to know the issue... but is the phone currently being charged? Otherwise, could you edit and explain the specific situation when it happens? – Andrew T. Aug 5 at 7:15
  • I haven't had it happen while the phone is being charged, which probably doesn't mean anything, since I don't often use it while it's being charged. There is no specific situation when it happens other than I'm trying to draw my lock pattern to unlock the phone. Most of the time it works as expected, but sometimes, when I'm trying to draw the pattern, the dots jump around and flash red, and the part of the pattern I've managed to draw so far disappears, forcing me to start over. When I do start over, it happens again. – Mike Brazil Aug 6 at 0:20
  • I figured it out. I frequently use a 3rd-party stylus (I also used it with the Stylo 3 I had previously), and either the screen's touch sensitivity is different enough to require a bit more pressure than I'm used to applying, or maybe it's the new screen protector. What's happening is that I wasn't applying enough pressure, but the lock-pattern system was interpreting the difference as if I was lifting the stylus while drawing the pattern and was reacting to that. I don't know if the jumping under that circumstance is new in 8.1 or if it did the same thing in 7.0, but I'd never seen it before. – Mike Brazil Aug 7 at 1:28

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