Phone won't turn on after I opened it up

Just a little while ago I got very upset and decided to throw my phone to the wood floor kinda hard. It had a little case that just covers the back and thats the part that hit the floor but when I picked it up, only half the screen was working, the other half showing vertical lines. I looked it up and decided to open the phone up because I had a Scanditech kit I used with my iPhone 5 and i opened the 6s up and disconnected and reconnected the cables and now the phone won't even turn back on but it was recognized on iTunes but I can't restore it because "i need to enter the password" but i can't do that as you can probably tell. I need help but I'll end up going to the store tomrorrow to get it fixed at the place I bought it