Chosen Solution
After doing a screen replacement on my iPhone 6 plus the bottom centimeter of the screen no longer responds when I touch it. Either it is completely unresponsive or it ends up tapping whatever button is above it on the screen. There are no other problems with the screen and everything else seems to work fine. I’ve tried factory resetting the phone, though now since the “Get Started” button is at the bottom of the screen I can’t set it back up again. Could there be a problem with the replacement screen I bought or is it the connectors?
Hard to tell what’s wrong without trying, it could be either of the two. Try opening up your iphone again and after checking with a good light source and magnification the relevant connectors and surrounding area on the logic board that no parts have been dislodged by mistake, try reseating the connector again until you get a light clicking sound. If your old screen is still partially working you could try that too to rule out possible logic board damages.
I may have two possibilities for you: the first is the flex cable was damaged when you replacing a new lcd, you can try to assemble it again until you get a light clicking sound. the second is you replaced with a bad lcd. maybe you need to try another lcd, but be careful the first possibility. Hope this answer will help you.
