I replaced my phone screen and now my Iphone is broken?

About 2 weeks ago I got my phone screen replaced because It was cracked. It had fallen from a small height and the screen just shattered. The phone worked perfectly fine, the cameras still worked, touch ID still worked, the whole screen still worked there was just a crack in it. The guy at the phone shop also checked that everything worked before replacing the screen. About 5 days after the screen was replaced white bars appeared down the right side of the screen and now I can't touch the top portion of the screen. On the lower portion it presses buttons randomly at times. The phone has not been dropped since the screen cracked and also had not been near water. Could this have anything to do with the screen replacement?

Top invention predictions of the next decades?

Each decade has one breakout invention

The '00's was: the iphone

The '10's was: the 3-D printer

What invention do you predict will be the major breakout innovation for the 20's, 30's, 40's, 50's, 60's, 70's, 80's, and 90's?

Trading in iPhone with att next?

I just got a new iPhone 7 online with at&t next and the requirements were that I'm suppose to send back the old one but when I got the new phone they never sent me a box to send my old phone back in which I thought they did so how do I send it back?

Iphone Mobile applications folder isn't there

I can't seem to find said folder. I know its probably supposed to be in:\Users\User\Music\iTunes\iTunes Media\ but I only see the folder "Automatically add to iTunes" and ".iTunes preference.plist" any ideas?

I already syned the phone and tried transfering purchases as well

Iphone 6 black screen, home button doesn't work and it won't charge or connect to itunes?

Nothing happened to the phone beforehand, I plugged it in to charge and a few minutes later I go to check on my phone and the screen is black and the sleep/wake up button won't turn it on. I try to hold the sleep/wake up button to see if its dead but the red battery doesn't show up. So its not dead but the screen is just black. ON top of that the home button hasn't been working. Any solutions to help me fix it?