User Guide - Lenovo E49

Thebatterycannotbecharged.
Youcannotchargethebatterywhenitistoohot.Ifthebatteryfeelshot,removeitfromthecomputerand
allowittocooltoroomtemperature.Afteritcools,reinstallitandrechargethebattery.Ifitstillcannot
becharged,haveitserviced.
Anacpoweradapterproblem
Printtheseinstructionsnowandkeepthemwithyourcomputerforreferencelater.
Theacpoweradapterisconnectedtothecomputerandtheworkingelectricaloutlet,butthe
poweradapter(powerplug)iconisnotdisplayedonthetaskbar.Alsotheacpowerindicatordoes
notlightup.
Dothefollowing:
1.Makesurethattheconnectionoftheacpoweradapteriscorrect.Forinstructionsonconnectingtheac
poweradapter,seeSafety,Warranty,andSetupGuidethatcomeswithyourcomputer.
2.Iftheconnectionoftheacpoweradapteriscorrect,turnoffthecomputer,thendisconnecttheacpower
adapterandremovethemainbattery.
3.Reinstallthebatteryandreconnecttheacpoweradapter,thenturnonthecomputer.
4.Ifthepoweradaptericonstillisnotdisplayedonthetaskbarandtheacpowerindicatordoesnotlight
up,havetheacpoweradapterandyourcomputerserviced.
Astartupproblem
Printtheseinstructionsnowandkeepthemwithyourcomputerforreferencelater.
TheMicrosoftWindowsoperatingsystemdoesnotstart.
OntheWindowsoperatingsystem,usetherecoveryprogrampreinstalledonyourcomputertohelpsolveor
identifyyourproblem.Fordetails,refertotheinstructionsinChapter6“Recoveryoverview”onpage27.
Sleepandhibernationproblems
Printtheseinstructionsnowandkeepthemwithyourcomputerforreferencelater.
Thecriticallow-batteryerrormessageappears,andthecomputerimmediatelyturnsoff.
Thebatterypowerisgettinglow.Connecttheacpoweradaptertothecomputer,orreplacethebattery
withachargedone.
Thecomputerenterssleepmodeimmediatelyafterpower-onself-test.
Makesurethat:
•Thebatteryischarged.
•Theoperatingtemperatureiswithintheacceptablerange.refertoChapter8“Preventingproblems”
onpage41
.
Computerscreenproblems
Printtheseinstructionsnowandkeepthemwithyourcomputerforreferencelater.
Thescreenisblank.
Doanyofthefollowing:
•Ifyouareusingtheacpoweradapterorusingthebattery,andthebatterystatusindicatorison,press
Fn+uparrowtoincreasethescreenbrightness.
•Ifthepowerindicatorisinblinking,pressthepowerbuttontoresumefromthesleepmode.
46UserGuide