I had installed the ONE UI 2.1 Update 9/13/2020- the update has made it so my NOTE 9 phone will shut down. Samsung you advertise that the one ui2 is "Simple and Reliable" well, it IS NOT for the Note 9. The phone shutting down is a known issue so much that their was a fix by users-which is... don't use the biometrics features of the phone, like fingerprint; yes that fix worked, but now with the so called reliable update that fix does NOT even work so my phone shuts down after a few minutes. The only thing that prevents it from shutting down is keeping it plugged to a power source even if fully charged.
PLEASE SAMSUNG FIX THIS PROBLEM! YOUR UPDATES SEEM TO REMOVE FUNCTIONS OR BREAK THEM, WHY?!