After replacing screen using iFixit 6s part display is black
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This is my 2nd attempt to replace the screen in my iPhone 6s with an iFixit 6s screen after replacing the battery with an iFixit 6s battery. Although I had done this same job before successfully a couple of years ago, I messed up on this try as I somehow managed to tear the ribbon on one of the video cables. So I ordered a replacement again from iFixit. This time I took care not to make that mistake. When the replacement was completed, the screen did not display anything though the iPhone was working to answer the phone when I called it and swiped where I knew I had to to tell it to answer. And I could tap to hang up the call. But that was all I could do now being able to see anything on the screen. Then last night after days of not working the display suddenly worked but was very dim. So I went to the screen where I could adjust the brightness, which I noticed was at its minimum setting. However, when I attempted to just touch the brightness adjustment to move it up, the screen suddenly went totally black again and I am not able to get it to display at all now.