Contents1 Before working inside your computer............................................................................................................. 9Before you begin ............................................................................................................................................................... 92 After working inside your computer..............................................................................................................103 Safety instructions........................................................................................................................................11Electrostatic discharge—ESD protection...................................................................................................................... 11ESD field service kit .........................................................................................................................................................12Components of an ESD field service kit.................................................................................................................. 12ESD protection summary ..........................................................................................................................................13Transporting sensitive components................................................................................................................................13Lifting equipment .......................................................................................................................................................134 Recommended tools.....................................................................................................................................145 Screw list..................................................................................................................................................... 156 Removing the base cover............................................................................................................................. 17Procedure...........................................................................................................................................................................177 Replacing the base cover............................................................................................................................. 20Procedure ........................................................................................................................................................................ 208 Removing the battery.................................................................................................................................. 23Lithium-ion battery precautions..................................................................................................................................... 23Prerequisites..................................................................................................................................................................... 23Procedure..........................................................................................................................................................................239 Replacing the battery.................................................................................................................................. 25Lithium-ion battery precautions..................................................................................................................................... 25Procedure ........................................................................................................................................................................ 25Post-requisites..................................................................................................................................................................2610 Removing the memory modules..................................................................................................................27Prerequisites..................................................................................................................................................................... 27Procedure..........................................................................................................................................................................2711 Replacing the memory modules.................................................................................................................. 29Procedure ........................................................................................................................................................................ 29Post-requisites..................................................................................................................................................................2912 Removing the wireless card........................................................................................................................30Prerequisites..................................................................................................................................................................... 30Procedure..........................................................................................................................................................................30Contents 3