Phone screen stays off.

@raffay15692 this "it vibrates for a second" and showing a black screen only, is a pretty good indicator that yo screen has failed. Replace the display assembly and then reevaluate.

Since iFixit does not yet have a specific guide for this, use something like this video for that. Replacement screens are readily available at many online stores.

While you work on your phone, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has the same issues with their phone. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.

Repair is War on Entropy!