Samsung Galaxy S9 Charging Port Flex Cable. If your dock port has been broken, damaged, or stopped working, this replacement is for you. It will solve the charging problems that you are experiencing. It should also help with any problems that you might be having with your microphone. All of our S9 parts are factory tested and 100% reliable. Compatibility: Samsung Galaxy S9 Features: Samsung Galaxy S9 Dock Port Flex Cable Dock Port Microphone