Loose Screen / Screen popping out
I have had a phone shop replace the lcd. Now the top of the screen or glass moves in and out of the frame as I push on it. It appears as if there is some dark yellow glue behind the screen. The guy at the phone shop re-heated and tried to stick it back down. He also noticed some of the screws were loose and tightened them. Unfortunately the screen still moves just as much. What is the reason my screen has come loose and what should I do to fix it?