Chosen Solution
Replacing a screen on an iPhone 6 and every screen I try (including original Apple) work for a minute or so and then the touch and home button stop working. I unplug everything and reattach it and it’s works for a minute again. What is going on?
Are there any signs of corrosion? It sounds more like it could be a board problem. I would try a new battery to see if this works. If it doesn’t , contact a local lab repair store and see if they could do any micro soldering work. Actually before you do that, I would take it into a 3rd party repair shop and have them do a diagnostic.
