Manual

Chapter10.Replacingdevices
Thischapterprovidesinstructionsonhowtoinstallorreplacehardwareforyourcomputer:
•“Staticelectricityprevention”onpage115
•“Replacingtheremovablebattery”onpage115
•“InstallingorreplacingthemicroSIMcard”onpage117
•“Replacingthebottomcover”onpage118
•“Replacingtheopticaldrive”onpage119
•“Replacingthewireless-WANcard”onpage120
•“ReplacingtheM.2solid-statedrive”onpage123
•“Replacingthekeyboard”onpage125
•“Replacingthecoin-cellbattery”onpage128
“Replacingtheharddiskdriveunderthebottomcover”onpage131
•“ReplacingtheharddiskdriveintheSerialUltrabayEnhancedbay”onpage132
•“Replacingthememorymoduleunderthebottomcover”onpage135
•“Replacingthememorymoduleunderthekeyboard”onpage136
Staticelectricityprevention
Staticelectricity,althoughharmlesstoyou,canseriouslydamagecomputercomponentsandoptions.
Improperhandlingofstatic-sensitivepartscancausedamagetothepart.Whenyouunpackanoptionor
aCustomerReplaceableUnit(CRU),donotopenthestatic-protectivepackagethatcontainsthepart
untiltheinstructionsdirectyoutoinstallthepart.
WhenyouhandleoptionsorCRUs,orperformanyworkinsidethecomputer,takethefollowingprecautions
toavoidstatic-electricitydamage:
•Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.
•Alwayshandlecomponentscarefully.Handleadapters,memorymodules,andothercircuitboardsbythe
edges.Nevertouchexposedcircuitry.
•Preventothersfromtouchingcomponents.
•Whenyouinstallastatic-sensitiveoptionorCRU,touchthestatic-protectivepackagethatcontainsthe
parttoametalexpansion-slotcoverorotherunpaintedmetalsurfaceonthecomputerforatleasttwo
seconds.Thisreducesstaticelectricityinthepackageandyourbody.
•Whenpossible,removethestatic-sensitivepartfromthestatic-protectivepackageandinstallthepart
withoutsettingitdown.Whenthisisnotpossible,placethestatic-protectivepackageonasmooth,
levelsurfaceandplacethepartonthepackage.
•Donotplacethepartonthecomputercoverorothermetalsurface.
Replacingtheremovablebattery
Beforeyoustart,printtheseinstructions.Readtheimportantsafetyinformationfirst.See“Important
safetyinformation”onpagevi.
ThissystemsupportsonlybatteriesspeciallydesignedforthisspecificsystemandmanufacturedbyLenovo
oranauthorizedbuilder.Thesystemdoesnotsupportunauthorizedbatteriesorbatteriesdesignedforother
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