Chosen Solution
I have 2 iPhone 7 with a broken screen, I bought 2 not high quality screens (19 euro and 34 euro) from amazon, I mounted them but on both devices, if I press hard the 3D Touch works really bad, like I need to press too much, and both show the liquid of the lcd on some points. the screens works good until I press hard. The problem is the screen or it can be something else? The battery is not swollen, can I fix this by buying an original screen?
@aymannass sounds like a issue with the low quality displays. Replacing those with some high quality display assemblies should fix this issue. iPhone 8 Screen iPhone 7 Screen
