Display becomes frozen but home button and power button works

Hi Sony, why did you change the screen, battery and port in the first place (drop, water, prior repair)? What was the original problem you were trying to solve? Also, you say your screen is frozen; what exactly do you mean by that? Is it booting up and working for a short time and then not responding to touch?

The more details you give us the more we can help you.

It sounds like you have used three different displays (original, replacement and "different"). Depending on where you bought them and how much you paid, it is quite possible that the replacement screens are defective. The same applies to small parts (dock) and especially batteries.

If possible, I would go back to the original configuration and see if that works, or at least works better than the replacement configuration, and try to replace one part at a time to see if this helps narrow things down.

Repoart back with your findings and please give us more background.