Chosen Solution
Why does my lock screen invert colors randomly whenever turning phone on? When I turn my phone on, the wallpaper of the lock screen inverts colors then goes back to normal. How can I fix this? Only the wallpaper is inverting the colors the other things are not.
As per this article network restart also helps
Is it just the wallpaper?
Try simply powering off your phone, then powering it back on again. I had the same problem and it worked for me
