Hi every one. i repair phones for a living and have come across a logic board that has me completely stumped. it looks like its a iphone 4s board, but there is NO sim slot on it. also the connector for the port at the bottom is further up on the board. if you want pictures or a video of me showing what im talking about i can do that, but my question is, is this a 4g, 4s or something else entirely?