It also began to happen to me on my Samsung Galaxy S7 after I installed the 2020 security patch,It always happens when unlocking the screen, it seems to happen when the phone is cold, but if you leave the screen on without rest it does not appearhtt...

I have the same problem in my Samsung Galaxy S7, I post 1 video with the problem.After installing the security patch of March 2020, this problem began, from Samsung I have not seen that they have given an answer to solve it, users propose to delete t...