Your device is already burn in/shadow?
burnin fixer will help your screen fixed from burnin/shadow screen with 6 method

we are different from burn screen fixer on store, we have 6 method to fix your burnin screen / shadow screen.
lets try it to fix your dead pixel screen / burn in screen

how to use screen burn in repairing ?
1.set your screen brightness to maximal
2.try method from number 1
3.wait for 5 minutes
4.after 5 min, see your screen correctly
5.if your screen still burn in
just try to change method.

and repeat after your burnin fixed

just install and follow the instruction how to fix burn in screen on mi device