iPhone dodgy screen or chip?
Recently I started a iPhone business and I started fixing a dodgy iPhone 6 Plus in which it’s touch didn’t work. So I opened up the phone and put the connectors back in place. It worked but I could still see the phone show white lines at the top every now and then when I put pressure on the back. Recently I opened up the phone again and now it showed just lines on the screen and no display. I opened it again and now this time the screen is black but I can still hear vibrations/noises. I keep opening it up but nothing happens. So should I replace the screen or get someone to replace the digitiser?