For iPhone 3GS Dock Charge Port Connector Assembly ,use logic baord to test well the charging,MIC,Attenna,Loudspeaker. For iPhone 3GS Dock Charge Port Connector Assembly ,use logic baord to ... .Usual you will the 3G3GS Charging dock problems:1.Charging dock Does Not Charge (Flex cable problems,or connect not goods)2 ...