third party apps uninstall, and go to setting then apps then reset apps preferences, if after this issue is creating so shut down your mobile and POWER BUTTON VOLUME UP AND BIXBY BUTTON press one time for 6 or 7 second, then volume down button press, WIPE CACHE PARTION, power button to select... 2 or 3 times press as i told you then check your device... if after create problem so you have 1 way... FORMAT BEFORE TAKE YOUR ALL FILES BACKUP...
