User guide

Solution:TheEEPROMchecksumisnotcorrect(block#4and5).Thesystemboardshouldbereplace,
andtheUUIDneedstobereinstalled.Havethecomputerserviced.
•Message:0190:Criticallow-batteryerror
Solution:Thecomputerturnedoff,becausethebatteryislow.Connecttheacpoweradaptertothe
computerandchargethebattery.
•Message:0191:SystemSecurity-Invalidremotechangerequested
Solution:Thesystemconfigurationchangehasfailed.Confirmtheoperationandtryagain.Toclearthe
error,enterThinkPadSetup.
•Message:0199:SystemSecurity-Securitypasswordretrycountexceeded.
Solution:Thismessageisdisplayedifyouenterawrongsupervisorpasswordmorethanthreetimes.
Confirmthesupervisorpasswordandtryagain.Tocleartheerror,enterThinkPadSetup.
•Message:1802:Unauthorizednetworkcardispluggedin-Poweroffandremovethenetworkcard.
Solution:Thewirelessnetworkcardisnotsupportedonthiscomputer.Removeit.
•Message:1820:Morethanoneexternalfingerprintreadersareattached.
Solution:Poweroffandremoveallbutthereaderthatyousetupwithinyourmainoperatingsystem.
•Message:2100:DetectionerroronSSD0(M.2)
Solution:Thesolid-statediskisnotworking.Havethesolid-statediskserviced.
•Message:2110:ReaderroronSSD0(M.2)
Solution:Thesolid-statediskisnotworking.Havethesolid-statediskserviced.
•Message:2200:MachineTypeandSerialNumberareinvalid.
Solution:MachineTypeandSerialNumberareinvalid.Havethecomputerserviced.
•Message:2201:MachineUUIDisinvalid.
Solution:MachineUUIDisinvalid.Havethecomputerserviced.
•Message:Fanerror
Solution:Coolingfanhasfailed.Shutdownthecomputerimmediatelyandhavethecomputerserviced.
•Message:Thermalsensingerror
Solution:Thethermalsensorhasproblem.Shutdownthecomputerimmediatelyandhavethecomputer
serviced.
Errorswithoutmessages
•Problem:MyscreenkeepsblankingwhenIdonotwantitto.
Solution:
–IfyourcomputerispreinstalledwiththeWindows7operatingsystem,youcandisableanysystem
timers,suchastheLCDturn-offtimerortheblanktimerbydoingthefollowing:
1.StartPowerManager.
2.ClickthePowerplantab,andthenselectMaximumPerformancefromthepredefinedpower
plans.
–IfyourcomputerispreinstalledwiththeWindows8.1operatingsystem,dothefollowing:
1.Gothedesktopandclickthebattery-statusiconintheWindowsnotificationarea.
2.ClickMorepoweroptions➙Showadditionalplans➙Highperformance.
•Problem:WhenIturnonthecomputer,nothingisdisplayedonthescreenandthecomputerdoesnot
beepwhilestartingup.
Chapter10.Troubleshootingcomputerproblems115