Contents1 Before working inside your computer............................................................................................................. 7Before you begin ................................................................................................................................................................72 After working inside your computer............................................................................................................... 83 Safety instructions........................................................................................................................................ 9Electrostatic discharge—ESD protection....................................................................................................................... 9ESD field service kit ........................................................................................................................................................ 10Components of an ESD field service kit.................................................................................................................. 10ESD protection summary ..........................................................................................................................................10Transporting sensitive components................................................................................................................................ 11Lifting equipment ........................................................................................................................................................114 Recommended tools.....................................................................................................................................125 Screw list..................................................................................................................................................... 136 Removing the base cover............................................................................................................................. 14Procedure.......................................................................................................................................................................... 147 Replacing the base cover..............................................................................................................................16Procedure.......................................................................................................................................................................... 168 Removing the battery...................................................................................................................................18Lithium-ion battery precautions...................................................................................................................................... 18Prerequisites......................................................................................................................................................................18Procedure.......................................................................................................................................................................... 189 Replacing the battery................................................................................................................................... 21Procedure.......................................................................................................................................................................... 21Post-requisites.................................................................................................................................................................. 2110 Removing the wireless card........................................................................................................................ 22Prerequisites..................................................................................................................................................................... 22Procedure..........................................................................................................................................................................2211 Replacing the wireless card.........................................................................................................................24Procedure..........................................................................................................................................................................24Post-requisites..................................................................................................................................................................2512 Removing the power-adapter port..............................................................................................................26Prerequisites..................................................................................................................................................................... 26Procedure..........................................................................................................................................................................26Contents 3