Service toolsList of Service ToolsThe table below gives a short overview of service tools that can be used for testing, error analysis and repairof product , refer to various concepts.CA-35S Power cableCA-53 USB connectivity cableUSB to Pop-PortTM connector cable.CU-4 Control unitCU-4 is a general service tool used with a module jig and a flash adapter.CU-4 requires an external 12 V power supply.The unit has the following features:• software controlled via USB• EM calibration function• Forwards FBUS/Flashbus traffic to/from terminal• Forwards USB traffic to/from terminal• software controlled BSI values• regulated VBATT voltage• 2 x USB2.0 connector (Hub)• FBUS and USB connections supportedRM-42Service Tools and Service Concepts Nokia Customer Care9241872 (Issue 1) Company Confidential Page 4–5Copyright ©2005 Nokia. All Rights Reserved.