Intel Dual-Band Wireless-AC 3165 User Manual 1

 

Lenovo ideapad 720S-14IKB User Guide Read the safety notices and important tips in the Read the safety notices and important tips in the included manuals before using your computer. included manuals before using your computer. Notes Guidefirst. Beforeusingtheproduct,besuretoreadLenovoSafetyandGeneralInformation Thelatestelectroniccomplianceandenvironmentalinformationareavailable fromtheLenovocomplianceinformationWebsites. Toviewcomplianceinformationgoto:

http://www.lenovo.com/compliance. Todownloadenvironmentalinformationgoto:

http://www.lenovo.com/ecodeclaration. SomeinstructionsinthisguidemayassumethatyouareusingWindows10. IfyouareusinganotherWindowsoperatingsystem,someoperationsmaybe slightlydifferent.Ifyouareusingotheroperatingsystems,someoperations maynotapplytoyou. Thefeaturesdescribedinthisguidearecommontomostmodels.Some featuresmaynotbeavailableonyourcomputeroryourcomputermayinclude featuresthatarenotdescribedinthisuserguide. Theillustrationsinthismanualmaydifferfromtheactualproduct.The screenshotsofoperatingsystemareforreferenceonly.Pleaserefertotheactual product. RegulatoryNotice Fordetails,refertoGuides&Manualsathttp://support.lenovo.com. FirstEdition(January2017) CopyrightLenovo2017. LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuanttoaGeneral ServicesAdministrationGSAcontract,use,reproduction,ordisclosureissubjecttorestrictionsset forthinContractNo.GS35F05925. Contents Chapter 1. Getting to know your computer ......................................... 1 Topview.....................................................................................................................1 Leftsideview ............................................................................................................5 Rightsideview..........................................................................................................8 Bottomview.............................................................................................................10 Chapter 2. Starting to use Windows 10 ............................................. 11 Configuringtheoperatingsystemforthe firsttime....................................................................................................................11 Operatingsysteminterfaces ..................................................................................11 Puttingthecomputertosleeporshutting itdown......................................................................................................................15 Connectingtoawirelessnetwork ........................................................................17 GethelpfromWindows.........................................................................................18 Chapter 3. Recovery system ............................................................... 19 Chapter 4. Troubleshooting ................................................................ 22 Frequentlyaskedquestions ...................................................................................22 Troubleshooting ......................................................................................................24 Trademarks .......................................................................................... 27 i Chapter 1. Getting to know your computer Top view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

a b c d e g f Note: Thedashedareasindicatepartsthatarenotvisibleexternally. Attention:

Donotopenthedisplaypanelbeyond170degrees.Whenclosingthedisplaypanel,be carefulnottoleavepensoranyotherobjectsinbetweenthedisplaypanelandthe keyboard.Otherwise,thedisplaypanelmaybedamaged. 1 Chapter 1. Getting to know your computer a Integrated camera Usethecameraforvideocommunication. b Computer display TheLCDdisplaywithLEDbacklightprovidesbrilliant c Wireless LAN antennas d Ventilation slots visualoutput. ConnecttoawirelessLANadaptertosendandreceive wirelessradiosignals. Dissipateinternalheat. Note: Makesurethatnoneoftheventilationslotsareblocked,orelseoverheatingofthe computermayoccur. e Touch pad Thetouchpadfunctionsasaconventionalmouse. Touchpad:Tomovethepointeronthescreen,slideyour fingertipoverthepadinthedirectioninwhichyouwant thepointertomove. Touchpadbuttons:Thefunctionsoftheleft/rightside correspondtothoseoftheleft/rightmousebuttonona conventionalmouse. Note: Youcanenable/disablethetouchpadbypressingF6(

). f Power Key g Built-in microphone Pressthiskeytoturnon/offthecomputer. Whenthecomputerison,pressandholdthiskeyformore than1second,thecomputerwillentersleepmode,press andholditformorethan4seconds,thecomputerwillbe turnedoff. Capturesoundwhichcanbeusedforvideoconferencing, voicenarration,oraudiorecording. 2 Chapter 1. Getting to know your computer Using the keyboard Hotkeys Youcanaccesscertainsystemsettingsquicklybypressingtheappropriate hotkeys. Mutes/unmutesthesound. Decreasesthevolume level. Increasesthevolumelevel. Enables/disables microphone. Refreshespage. Enables/disablesthetouch pad. Enables/disablesairplane mode. Enables/disablescamera. Locks/unlockstheLCD screen. Enablestheexternal projectorordanglesthe externaldisplay. Decreasesdisplay brightness. Increasesdisplay brightness. Note: IfyouchangedtheHotkeyModefromEnabledtoDisabledintheBIOSsetuputility, youwillneedtopresstheFnkeyincombinationwiththeappropriatehotkey. 3 Chapter 1. Getting to know your computer Function key combinations Throughtheuseofthefunctionkeys,youcanchangeoperationalfeatures instantly.Tousethisfunction,pressandholdFna;thenpressoneofthe functionkeysb. a b Thefollowingdescribesthefeaturesofeachfunctionkey. Fn + Space (on select models):

Adjuststhekeyboardbacklight(ondim brightoff). 4 Chapter 1. Getting to know your computer Left-side view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

a a AC power b c d e f ConnectstotheACpoweradapter. adapter jack b Battery/Charging status indicator AC power adapter status Indicator status Off Disconnected Solidamber Fastblinkingamber Slowblinkingamber Slowblinkingwhite Solidwhite Connected Meaning Thecomputerisinsleepmodeorturned off;Thebatteryhasmorethan20%

charge. Thebatteryhasbetween5%and20%

charge. Thebatteryhasbetween1%and5%

charge. Thebatteryisbeingcharged.When batterychargereaches20%,theblinking colorchangestowhite. Thebatteryhasbetween20%and80%

chargeandisstillcharging.Whenthe batteryreaches80%chargethelightwill stopblinking. Thebatteryhasmorethan80%charge, chargingwillcontinueuntilthebattery isfullycharged. c USB 3.0 port ConnectstoUSBdevices. Note: Fordetails,seeConnectingUSBdevicesonpage7. d Combo audio Connectstoheadsets. jack 5 Chapter 1. Getting to know your computer Notes:

Thecomboaudiojackdoesnotsupportconventionalmicrophones. Therecordingfunctionmaynotbesupportedifthirdpartyheadphonesorheadsetsare connected,duetodifferentindustrystandards. e Novo button f Power status indicator Indicator Power status indicator Whenthecomputerisoff,pressthisbuttontostartthe LenovoOneKeyRecoverysystemortheBIOSsetup utility,ortoenterthebootmenu. Indicator status On(solidwhite) Blinking Off Meaning Thecomputerispoweredon. Thecomputerisinsleepmode. Thecomputerispoweredoff. 6 Chapter 1. Getting to know your computer Connecting USB devices YoucanconnectaUSBdevicetoyourcomputerbyinsertingitsUSBplug

(TypeA)intotheUSBportonyourcomputer. ThefirsttimeyouplugaUSBdeviceintoaparticularUSBportonyour computer,Windowsautomaticallyinstallsadriverforthatdevice.Afterthe driverhasbeeninstalled,youcandisconnectandreconnectthedevice withoutperforminganyadditionalsteps. Note: Typically,Windowsdetectsanewdeviceafterithasbeenconnected,andtheninstalls thedriverautomatically.However,somedevicesmayrequireyoutoinstallthedriver beforeconnecting.Checkthedocumentationprovidedbythedevicesmanufacturer beforeconnectingthedevice. BeforedisconnectingaUSBstoragedevice,makesureyourcomputerhas finishedtransferringdatatothatdevice.ClicktheSafelyRemoveHardware andEjectMediaiconintheWindowsnotificationareatoremovethedevice beforedisconnecting. Note: IfyourUSBdeviceusesapowercord,connectthedevicetoapowersourcebefore connectingit.Otherwise,thedevicemaynotberecognized. 7 Chapter 1. Getting to know your computer Right-side view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

a b c d a Memory card slot Insertmemorycards(notsupplied)here. Note: Fordetails,seeUsingmemorycards(notsupplied)onpage9. b Type-C port TypeCportsupports:

USB3.0 Nativedisplayport1.2videooutput VGA/HDMIoutputusingTypeCVGA/HDMIadapter

(soldseparately) c USB 3.0 port ConnectstoUSBdevices. Notes:

Ifthebatterychargeismorethan20%,theUSBportwitha anexternalUSBdevice,evenwhenthecomputerisnotconnectedtopower. Fordetails,seeConnectingUSBdevicesonpage7. marksupportschargingof d HDMI port ConnectstodeviceswithHDMIinputsuchasaTVora display. 8 Chapter 1. Getting to know your computer Using memory cards (not supplied) Yourcomputersupportsthefollowingtypesofmemorycards:

SecureDigital(SD)card SecureDigitalHighCapacity(SDHC)card SDeXtendedCapacity(SDXC)card MultiMediaCard(MMC) Notes:

Insertonlyonecardintheslotatatime. ThiscardreaderdoesnotsupportSDIOdevices(e.g.,SDIOBluetooth,etc.). Inserting a memory card Insertthememorycarduntilittouchesthebottomoftheslot. Removing a memory card Gentlypullthememorycardoutofthememorycardslot. Note: Beforeremovingthememorycard,disableitbyusingtheWindowssafelyremove hardwareandejectmediautilitytoavoiddatacorruption. 9 Chapter 1. Getting to know your computer Bottom view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

b a b a Ventilation slots Dissipateinternalheat. Note: Makesurethatnoneoftheventilationslotsareblocked,orelseoverheatingofthe computermayoccur. b Speakers Provideaudiooutput. 10 Chapter 2. Starting to use Windows 10 Configuring the operating system for the first time - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Youmayneedtoconfiguretheoperatingsystemwhenitisfirstused.The configurationprocessmayincludetheproceduresbelow:

Acceptingtheenduserlicenseagreement ConfiguringtheInternetconnection Registeringtheoperatingsystem Creatingauseraccount Operating system interfaces - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

The return of the Start menu Windows10comeswithapowerfulandusefulstartmenu.Toopenthestart menu,dooneofthefollowing:

SelecttheStartbuttoninthelowerleftcorner,theStartmenuisdisplayed. PresstheWindowskeyonthekeyboard. 11 Chapter 2. Starting to use Windows 10 ThepowerbuttonisontheStartmenu,clickityoucanchoosetoshutdown orrestartthecomputer,orputthecomputerintosleepmode. ThroughtheStartmenu,youcanlocatealltheinstalledappsorviewthe frequentlyusedapps. 12 Chapter 2. Starting to use Windows 10 The ACTION CENTER SelecttheACTIONCENTERicon CENTERisdisplayed. onthetaskbarandtheACTION FromtheACTIONCENTER,youcanexamineimportantnotificationsfrom Windowsandyourapps.Moreover,youcanchangecommonsettings quickly. Task View in taskbar InWindows10,youcanaddanewdesktopandswitchbetweendifferent desktops. Toaddanewdesktop,dothefollowing:

ClicktheTaskViewicon inthetaskbararea. 13 Chapter 2. Starting to use Windows 10 ClickNewdesktop. Toswitchbetweendesktops,clicktheTaskViewicon desireddesktop.

,thenselectyour 14 Chapter 2. Starting to use Windows 10 Putting the computer to sleep or shutting it down - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Whenyouhavefinishedworkingwithyourcomputer,youcanputittosleep orshutitdown. Putting your computer to sleep Ifyouwillbeawayfromyourcomputerforonlyashorttime,putthe computertosleep. Whenthecomputerisinsleepmode,youcanquicklywakeittoresumeuse, bypassingthestartupprocess. Toputthecomputertosleep,dooneofthefollowing:

Closethedisplaylid. Pressandholdthepowerkeyforabout1to4seconds. Movethecursortothelowerleftcorner,andthenselecttheStartbutton. SelectPower Sleep. Note: Putyourcomputertosleepbeforeyoumoveit.Movingyourcomputerwhilethehard diskdriveisspinningcandamagetheharddisk,causinglossofdata. Towakethecomputer,dooneofthefollowing:

Pressanykeyonthekeyboard. Pressandholdthepowerkeyformorethan1second. 15 Chapter 2. Starting to use Windows 10 Shutting down the computer Ifyouarenotgoingtouseyourcomputerforalongtime,shutitdown. Toshutdownyourcomputer,dooneofthefollowing:

Movethecursortothelowerleftcorner,andthenselecttheStartbutton. SelectPower Shutdown. RightclicktheStartbuttoninthelowerleftcornerandselectShutdownor signoutShutdown. 16 Chapter 2. Starting to use Windows 10 Connecting to a wireless network - - - - - - - - - - - - - - - - - - - - - - - - - - -

Enabling wireless connection Toenablewirelessfunctions,dooneofthefollowing:

ClicktheACTIONCENTERicon inthenotificationarea,andthen deselectAirplanemode. Press ClickSettings todisableairplanemode. Network&InternetAirplanemodetoopenthe networkconfigurationpage.ThentoggletheairplanemodeswitchtoOff. Connecting to a wireless network Afterwirelesshasbeenenabled,thecomputerwillautomaticallyscanfor availablewirelessnetworksanddisplaytheminthewirelessnetworklist.To connecttoawirelessnetwork,clickthenetworknameinthelist,andthen clickConnect. Note: Somenetworksrequireanetworksecuritykeyorpassphraseforconnection.To connecttooneofthosenetworks,askthenetworkadministratorortheInternetservice provider(ISP)forthesecuritykeyorpassphrase. 17 Chapter 2. Starting to use Windows 10 Get help from Windows - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Ifyouhaveaproblemwiththeoperatingsystem,seetheWindowsGet Startedapp.Toopenit,dothefollowing:

Movethecursortothelowerleftcorner,andthenselecttheStartbutton. SelectGetStartedfromAllapps. 18 Chapter 3. Recovery system Introduction Pushbuttonresetisabuiltinrecoverytoolthatenablesuserstorestore theiroperatingsystemtoitsoriginalstate.Thispreservestheirdataand importantcustomizations,withouttheneedtobackuptheirdatainadvance. ThefollowingPushbuttonresetfeaturesareavailabletousersfrom multiplelocationswithinWindows:

Refreshing the computer Fixessoftwareproblemsbyreinstallingthefactorydefaultconfiguration. Thispreservestheusersdata,importantsettings,andanyWindowsStore appspreviouslypurchasedfromtheWindowsStore. Resetting the computer Preparesthecomputerforrecyclingortransferofownership.Thisreinstalls thefactorydefaultconfigurationandreturnsalluserdataandapplicationsto thestateoftheiroriginalOutofBoxExperience(OOBE). Using Push-button reset Pushbuttonresetcanbelaunchedusingoneofthefollowingmethods:

Novobutton:

Shutdownthecomputerandwaitatleastfiveseconds.PresstheNovo buttonandthenselectSystemRecovery. Settings:

SettingsUpdate&securityRecoveryAdvancedstartupselect Restartnow. Formoreinstructions,seetheWindowsHelpandSupportfileonyour computer. WhenIpurchasedmycomputer,itincludedacopyofWindows.HowcanI determinewhetherthecopyofWindowsispreinstalledbyLenovo?

Ontheoutsideofthesalespackageofyourcomputer,youshouldfinda labelcontainingconfigurationinformationforyourcomputer.Checkthe printedstringnexttoOS.IfitcontainsWindowsorWIN,thecopyof WindowswaspreinstalledbyLenovo. WhatistheRecoveryPartition?

IfyourcomputerispreinstalledwithanyversionofWindows10,the storagedeviceofyourcomputercontainsaRecoveryPartition.This 19 Chapter 3. Recovery system partitioncontainstheimagefileofthepreinstalledWindowsoperating system.Incasesofsystemfailure,youcanusetheLenovoOneKey RecoverysystemortheWindowsResetfeaturetorestoretheoperating systemtoitsfactorystatus. Note: TheRecoveryPartitionisnotassignedadriveletterandcannotbeaccessedthrough WindowsFileExplorer. Iuninstalledapreinstalledsoftware,butthereisnosignificantincreaseinthe freedrivespace. ThecopyofWindowsrunningonyourcomputermaybeCompact technologyenabled.ForcomputerswithCompacttechnologyenabled Windows,themajorityoffilesneededforpreinstalledsoftwareare installedontheRecoveryPartitionandwontbedeletedthroughnormal uninstallation. WhathappensifIattempttodeleteormodifytheRecoveryPartition?

Attention:DonotdeleteormodifytheRecoveryPartitiononaCompact technologyenabledcomputer. IftheRecoveryPartitionisdeletedormodified,youmaynotbeableto restoreWindowstothefactorystatus.Forcomputermodelsonwhich Compacttechnologyisenabled,deletingtheRecoveryPartitionmaycause Windowstofailtostart. HowcanIdeterminewhethertheWindowsrunningonmycomputeris Compacttechnologyenabled?

CompacttechnologyisnormallyenabledoncopiesofWindows10Update runningonSSD(oreMMC)onlycomputermodels.Tocheckyour computer, 1 RightclicktheStartbuttoninthelowerleftcornerandselectDisk Management. 2 TheDiskManagementprogramstarts. 20 Chapter 3. Recovery system IfWimBootislabeledontheWindowspartition(asillustrated),Compact technologyisenabledonyourcopyofWindows. WherecanIfinddriversforthevarioushardwaredevicesofmycomputer?

IfyourcomputerispreinstalledwithaWindowsoperatingsystem,first checktheinstallationprogramontheCpartitionofyourharddisk.Ifyou cannotfindthedriversforallthehardwaredevicesthatyouneedthere, downloadthedriversfromtheLenovoconsumersupportwebsite. Note: TheLenovosupportWebsitecontainsthelatestdrivers. 21 Chapter 4. Troubleshooting Frequently asked questions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Thissectionlistsfrequentlyaskedquestionsbycategory. Finding information WhatsafetyprecautionsshouldIfollowwhenusingmycomputer?

TheLenovoSafetyandGeneralInformationGuidewhichcamewithyour computercontainssafetyprecautionsforusingyourcomputer.Readand followalltheprecautionswhenusingyourcomputer. WherecanIfindthehardwarespecificationsformycomputer?

Youcanfindhardwarespecificationforyourcomputerontheprinted flyerswhichcamewithyourcomputer. WherecanIfindwarrantyinformation?

Forthewarrantyapplicabletoyourcomputer,includingthewarranty periodandtypeofwarrantyservice,seetheLenovolimitedwarrantyflyer thatcamewithyourcomputer. Drivers and preinstalled software WherearetheinstallationdiscsforLenovopreinstalledsoftware(desktop software)?

YourcomputerdoesnotcomewithinstallationdiscsforLenovo preinstalledsoftware.Ifyouneedtoreinstallanypreinstalledsoftware, youcanfindtheinstallationprogramontheDpartitionofyourharddisk

(forselectmodels,ontheCpartition).Ifyoucannotfindtheinstallation programthere,youcanalsodownloaditfromtheLenovoconsumer supportwebsite. WherecanIfinddriversforthevarioushardwaredevicesofmycomputer?

IfyourcomputerispreinstalledwithaWindowsoperatingsystem,Lenovo providesdriversforallthehardwaredevicesthatyouneedontheD partitionofyourharddisk(forselectmodels,ontheCpartition).Youcan alsodownloadthelatestdevicedriversfromtheLenovoconsumersupport website. 22 Chapter 4. Troubleshooting BIOS setup utility WhatistheBIOSsetuputility?

TheBIOSsetuputilityisROMbasedsoftware.Itdisplaysbasiccomputer informationandprovidesoptionsforsettingbootdevices,security, hardwaremode,andotherpreferences. HowcanIstarttheBIOSsetuputility?

TostarttheBIOSsetuputility:

1 Shutdownthecomputer. 2 PresstheNovobuttonandthenselectBIOSSetup. HowcanIchangethebootmode?

Therearetwobootmodes:UEFIandLegacySupport.Tochangetheboot mode,starttheBIOSsetuputilityandsetbootmodetoUEFIorLegacy Supportonthebootmenu. WhendoIneedtochangethebootmode?

ThedefaultbootmodeforyourcomputerisUEFImode.Ifyouneedto installalegacyoperatingsystem,suchasWindows,LinuxorDos,etc(that is,anyoperatingsystembeforeWindows8)onyourcomputer,youmust changethebootmodetoLegacySupport.Thelegacyoperatingsystem, suchasWindows,LinuxorDos,etccannotbeinstalledifyoudontchange thebootmode. Getting help HowcanIcontactthecustomersupportcenter?

SeeChapter3.GettinghelpandserviceofLenovoSafetyandGeneral InformationGuide. 23 Chapter 4. Troubleshooting Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Display problems When I turn on the computer, nothing appears on the screen. Ifthescreenisblank,makesurethat:

TheACpoweradapterisconnectedtothe computer,andthepowercordispluggedintoa workingelectricaloutlet. Thecomputerpowerison.PressthePowerkey againforconfirmation. Iftheseitemsaresetcorrectly,andthescreenremains blank,havethecomputerserviced. When I turn on the computer, only a white cursor appears on a blank screen. The screen goes blank while the computer is on. RestorebackedupfilestoyourWindows environmentortheentirecontentsofyourharddisk toitsoriginalfactorycontentsusingPushbutton reset.Ifyoustillseeonlythecursoronthescreen, havethecomputerserviced. Yourpowermanagementisenabled.Dooneofthe followingtoresumefromsleepmode:

Pressanykeyonthekeyboard. PressthePowerkey. Sleep problems The critical low-battery error message appears, and the computer immediately turns off. The computer enters sleep mode immediately after Power-on. Thebatterypowerisgettinglow.ConnecttheAC poweradaptertothecomputer. Makesurethat:

Thebatteryischarged. Theoperatingtemperatureiswithintheacceptable range.SeeChapter2.UseandcareInformationin theLenovoSafetyandGeneralInformationGuide. Note: Ifthebatteryischargedandthetemperatureiswithinrange,havethecomputer serviced. 24 The computer does not return from sleep mode and the computer does not work. Display panel problems The screen is blank. Chapter 4. Troubleshooting Ifyourcomputerisinsleepmode,connecttheAC poweradaptertothecomputer,thenpressthe WindowsbuttonorthePowerkey. Ifthesystemstilldoesnotreturnfromsleepmode, yoursystemhasstoppedresponding,andyoucannot turnoffthecomputer;resetthecomputer.Unsaved datamaybelost.Toresetthecomputer,pressand holdthePowerkeyforeightsecondsormore.Ifthe computerstilldoesnotreset,removetheACpower adapter. Dothefollowing:

)tomakethescreenbrighter. IfyouareusingtheACpoweradapterorthe battery,andthebatterystatusindicatorison,press F12(

Ifthepowerindicatorisblinking,pressthePower keytoresumefromsleepmode. Iftheproblempersists,followthesolutioninthe nextproblemThescreenisunreadableor distorted. The screen is unreadable or distorted. Makesurethat:

Thescreenresolutionandcolorqualityarecorrectly set. Themonitortypeiscorrect. Incorrect characters appear on the screen. Istheoperatingsystemorprogramsinstalled correctly?Iftheyareinstalledandconfigured correctly,havethecomputerserviced. Sound problems No sound can be heard from the speakers even when the volume is turned up. Makesurethat:

TheMutefunctionisoff. Thecomboaudiojackisnotbeingused. Speakersareselectedastheplaybackdevice. 25 Chapter 4. Troubleshooting Rechargethebattery. Toturnoffyourcomputer,pressandholdthePower keyforeightsecondsormore.Ifthecomputerstill doesnotrespond,removetheACpoweradapter. Yourcomputermightlockwhenitenterssleepmode duringacommunicationoperation.Disablethesleep timerwhenyouareworkingonthenetwork. Donotconnectordisconnectanyexternaldevice cablesotherthanUSBwhilethecomputerpoweris on.Otherwise,youmightdamageyourcomputer. Whenusinghighpowerconsumptionexternal devices,suchasanexternalUSBopticaldrive,usean externaldevicepoweradapter.Otherwise,thedevice maynotberecognized,orthesystemmayshutdown asaresult. Battery problems Your computer shuts down before the battery status indicator shows empty.

-or-

Your computer operates after the battery status indicator shows empty. Other problems Your computer does not respond. The connected external device does not work. 26 Trademarks ThefollowingtermsaretrademarksorregisteredtrademarksofLenovointhe UnitedStates,othercountries,orboth. Lenovo MicrosoftandWindowsaretrademarksofMicrosoftCorporationintheUnited States,othercountries,orboth. Othercompany,products,orservicenamesmaybetrademarksorservicemarks ofothers. 27 L e n o v o C h n a 2 0 1 6 i en-US Rev. AA00