원문 게시자: Brian Wood ,
I know that the iPhone 7 plus has an audio ic issue (motherboard audio chip). Im not sure if it affects the 7 in the same way, but it sure sounds like those symptoms. The main way for me to know it’s that chip is if it takes longer than normal to boot, the touch is laggy, the audio issues you explained and or it gets hot while charging in the upper right where the motherboard is. Are you having any of the other symptoms?