Chosen Solution
So I found a family members old iPhone 6s that was dropped and has a very broken screen. I plugged it in and I could see the backlight but nothing on the actual screen, the backlight indicated to me it was bootlooping. The phone had a battery and was confirmed working before it broke, the phone doesn’t show up on iTunes or 3utools. heres an image of how it looked like before (sorry for bad photo)
i got a new screen for it and when I plugged it in, nothing showed not even the battery icon when it’s charging and it doesn’t show in iTunes, but I know something is happening because the area over the cpu is going warm
North of the SoC you have all the backlight circuitry, which is a high voltage rail that got most probably shorted with the bad hit and prevents the iPhone from booting properly. Unless you want to invest in a microsoldering repair there’s nothing else you can do on a DiY basis unfortunately.
