Post 11/19/21 update, my Galaxy S21 has a purple mute icon stuck on the screen that won't go away.

[Android Central Question]

Tapping it only does two things, Mutes all sounds on or Mutes all sounds off.

 

[ironass]

Tapping it only does two things, Mutes all sounds on or Mutes all sounds off.

Have you tried wiping the phone's cache partition to clear any detritus from the previous firmware? See...

https://forums.androidcentral.com/s...-wipe-cache-partition-galaxy-app-booster.html

 

[mustang7757]

Sometimes a simple reboot fixes small glitches

 

[B. Diddy]

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