iPhone 6(S)/Plus iPhone 6s blank screen after 11.4 update?

[xDouble8x]

Shortly after the 11.4 update my screen went blank. I could still touch buttons, dial numbers and stop my alarm with no visual. After some troubleshooting and trying to hard reset with it no luck, I thought it was my screen/digitizer so I replaced it, but I am still having the same problem. This can't be water damage as I've never spilled water on it and only dropped it one time with the case on it sometime last year. Any ideas on what this could be?

 

[Newtons Apple]

Shortly after the 11.4 update my screen went blank. I could still touch buttons, dial numbers and stop my alarm with no visual. After some troubleshooting and trying to hard reset with it no luck, I thought it was my screen/digitizer so I replaced it, but I am still having the same problem. This can't be water damage as I've never spilled water on it and only dropped it one time with the case on it sometime last year. Any ideas on what this could be?

Since it sounds like you have been inside this iPhone the problems could be many.

 

[xDouble8x]

It was my first time opening this phone. Very easy replacement compared to older iphones. Im starting to just realize that its probably the logic board and I may sell the phone as broken for parts.