roll back is not a solution dear if you face after update then try these steps and lets see
A. Wipe Cache Partition.
Steps to perform.
1) Turn off the device.
(Connect with type C cable and connect with pc/laptop or type c earphone only for Android 11 ) ...........OR....... IF YOU HAVE ANOTHER MOBILE THEN CONNECT WITH CABLE WHETHER IT IS TYPE C TO TYPE C OR MICRO USB PORT take help of otg connector to connect with other mobile.
2) Press and hold the Volume Up key and the spower button. 3) When the Android logo displays, release all keys. 4) Press the Volume down key to navigate and select "Wipe cache partition". 5) Press Power key to select. When the wipe cache partition is complete, Select Reboot System. 6) Press the Power key to restart the device.
B. Reset App Preferences. Settings >Apps> Tap on Top Right 3Dots and select Reset App preferences.
C. Go to settings >general Management >reset>reset settings.
