Chosen Solution

I tried to change my screen on my iphone 6s, and while I almost was finish, and about to connect the screen to the motherboard on phone, it blew a little and some smoke occoured. Now when i try to turn it on, nothing happens. When i connect the charger, it only vibrates every 5 seconds. Is my phone dead forever?

What I don’t understand is, why didn’t you take it to Apple? Your phone would’ve still been in warranty and it would’ve been cheaper? With you not disconnecting the battery and trying to fit the new screen, you have shorted something, this caused the smoke, you may have damaged the backlight, which would produce no image. To fix this, you would need the equipment and knowledge to do microsoldering.