Chosen Solution

OK, so its been a while since i used my iphone 4s. its been in parts for about a year and I just recently bought all new hardware for it. The hardware I replaced goes as follows: Proximity sensor Home Button cable Charger port Battery LCD Screen I pretty much replaced everything in relation to power. I kept it on the charger for about atleast an hour. At most, the IC’s under the camera warms up, but no other responses. The computer doesn’t even read it, which is how i know it has not powered on. There was no water damage because i strictly took it apart to replace the exterior, but just got lazy. I also tried researching the schematics, perhaps I can try to find out where the flow of electricity stops, but its really hard to find. Looking for suggestions…

I truly think that your problem is the same as mine! In my opinion it’s either the mother board that has a short circuit OR the grounding thingies that are supposed to be mounted a certain way and we’re missing it…