Hi,
Did you try a “wipe the cache partition” to see if that resolved the problem
Here’s how:
Turn off the phone
Hold both the Volume down button and Power button together until the device turns on.
There should be a menu that says ''Select Boot Mode.''
Use the Volume Up button to scroll to ''Recovery Mode''.
When there is an Android symbol next to a yellow triangle, press and release the Power button and Volume up button at the same time.
Navigate down to ''Wipe cache partition''.