After installing the software update (security patch June 2020) for my Samsung A7 (2018), my screen flickers in some of the apps. And whenever I scroll, the screen becomes double (lower screen freezes while the upper screen is the one moving). And when I need to select a button/a photo, I have to guess where it really is on the screen. Is there a solution for this? I've tried factory reset and wiping out system cache. I also tried to downgrade the firmware using Odin, but it keeps on failing. Please fix this.