If your iphone plus is not charging, will not connect to itunes, your microphone not working (people can’t hear you) or your headphone jack is not working then you may need a new charging port flex cable.
Brand new and Original one. Made of high quality and durable material
White Dock Port Audio Jack Charger Connector Flex Cable for iPhone 6+ 5.5 inch
iPhone 6 plus 5.5”
1* Headphone Audio Jack and Charging Dock Port Connector Flex Cable for iPhone 6 Plus – Grey