How to fix iPhone X screen if it looks like a negative print?
My phone has been been dropped on the floor and when I picked it up all the colours of the iPhone X were like a negative.
How can I fix it?
Try here
Invert the screen colors. Go to Settings > General > Accessibility > Display Accommodations > Invert Colors, then choose Smart Invert or Classic Invert. Or use accessibility shortcuts. Smart Invert Colors reverses the colors of the display, except for images, media, and some apps that use dark color styles.
If no joy, make a genius bar appointment with Apple for an evaluation.