Chosen Solution

Phone appears responsive. Alarms go off. Siri can be heard. Just can’t see anything on the screen. It’s black with blue vertical lines. Is this an easy fix if I purchase a screen replacement kit?

Sounds fixable iPhone 4S Screen iPhone 4S Screen Replacement

How do get the color back to normal show me?

I have once broken my iPhone screen, and then change a new screen. However, the new screen always have no response. If you want to replace your iPhone, you’d better ask the Apple support , do not do it by yourself.