Recently Nokia released Pie Update for Nokia 5.1+. As we all Know, No software is perfect and Somehow Bugs Creep in.
Here, I'm going to address Those Bugs.
1. Settings Crash when Notification or Ringtone or Alarm sound is Set to None. Temporary fix is to Change These Sounds Via any 3rd party apps like Any Ringtone app or File manager.
2. Earpiece stops Working when in Accessibility Mode, Hearing Aid is Turned On. To reproduce, go to Phone> Settings> Accessibility> hearing Aid, Turn On and Reboot.
3. In Quick Pull Down Menu, Network Icon remain Blank.
4. In SIM 2, having VoLTE Issue. All of Sudden VoLTE disappear or Sometimes It don't come Unless Phone is Soft reset.
These are 4 Bugs that is in Pie Update.
PS- I have performed Factory Reset and These issue still persist.