Screen replaced, screen stays black

[Camsfault]

I have recently replaced my iphone 6 screen. It initially worked then lines appeared on the screen then the screen was completely black. The phone is on(can feel vibrations and hear sounds). I replaced the screen and it is still black. I have checked that the screen connectors are firmly clipped in. Any suggestions?

 

[Menel]

You are probably better off posting over here:
https://forums.macrumors.com/forums/iphone-tips-help-and-troubleshooting.109/

 

[iConnected]

I have recently replaced my iphone 6 screen. It initially worked then lines appeared on the screen then the screen was completely black. The phone is on(can feel vibrations and hear sounds). I replaced the screen and it is still black. I have checked that the screen connectors are firmly clipped in. Any suggestions?

Take it to Apple and have them repair it.

You will have voided your warranty by replacing it already yourself, but at least they can repair it for you with genuine parts and ensure that they get it working again for you.