Chosen Solution
So this iPhone was a pass down from my sister she gave it to me with 2 faults with it: earphone jack doesn’t let the earphone go in all the way but still works, the inside I can feel it shaking. One day I went to play in the park and I dropped my phone (this was my first time dropping this phone) and then I had the problem that whenever I turn it upside down or left it turns off so fast forward a few weeks, I dropped it again this time it wasn’t turning on so I backed the phone up from iTunes and it worked Fast forward 2 more weeks I dropped it again and now it won’t turn on. It’ll only show the apple logo loop were it turns off and shows only the apple logo. I tried backing up my Phone on my laptop but it doesn’t connect in any way and I tried the trick when you hold the home button
There is no “oh it’s the Fallopian tube” fix for this problem. You can start by ruling out parts problems–will the phone boot in a known good housing. If there are no parts problems, then a visual microscope exam is the next step, followed by multimeter testing etc.