iPhone 7 Plus dead ?

I found iPhone 7 Plus died , no any moisture (liquid) or dropped , never been opened, well what I found it’s interesting , iPhone 7 Plus housing is weak same area as iPhone 6 Plus , I’m sure ppl here will understand what I am talking about who knows what is it , just behind touch screen controller, if your iPhone 7 Plus dies and not accidental damage check if the housing got bent near power button ,