Whenever I press the phone near where the connecters are it brightens and when I let go it dims; I have connected and disconnected the connecters multiple times
My bet is you purchased a replacement screen that isn't very high quality. When you press the screen, the backlight layer of the display is coming closer to the screen surface which makes it appear brighter.
2 
1 
1
Sounds like a backlight issue. have you tried the original display?
Eric さんによる
My bet is you purchased a replacement screen that isn't very high quality. When you press the screen, the backlight layer of the display is coming closer to the screen surface which makes it appear brighter.
Steve さんによる
@salad Probably a low quality display as Steve Godun said, try the original display if you still have it and report back to us. :)
[deleted] さんによる