Chosen Solution
Phone took a fall and was stuck in a reboot loop after being plugged in, I opened up the phone and saw the battery was disconnected so I reconnected it thinking it was a simple fix. Instead the phone woukdn’t go past the apple logo. Ive disconnected all of the pieces that I know of to see if it would boot up without them to see if any of them were the issue. The phone already doesnt have a home button due to it going into a boot loop when the home button is connected. Is it worth trying to switch out screen& battery?? Not sure the problem Also the phone will stay on that screen when unplugged for hours so I feel like that rules out the battery issue
Try using a USB Ammeter, and check if the iPhone draws more than 0.5A.Try putting it to DFU Mode or Recovery mode, then connect it to a computer with 3uTools or iTunes.Try turning on the phone then connect it to a computer with 3uTools and check if it sees the iPhone. If none of the above works then: A plug or connector might not be plugged or seated properly.The Lightning Connector Assembly might got damaged.The logic board might got damaged From my experience, a connector might have been dislodged or unplugged when it was dropped. Try checking if a connector is completely plugged by lightly pulling the plug (as if your trying to disconnect it) using a pry tool or fingernails. If the plug easily disconnects, then it was not plugged properly. Also try looking at the connector if it is completely flat and you don’t see any contacts or gold traces.
