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Lenovo U455 manual Cleaning your computer keyboard

Models: U455

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Appendix B. Use and care information

Cleaning your computer keyboard

1 Absorb some isopropyl rubbing alcohol on a soft, dust-free cloth.

2 Wipe each keytop surface with the cloth. Wipe the keys one by one; if you wipe several keys at a time, the cloth may hook onto an adjacent key and possibly damage it. Make sure that no liquid drips onto or between the keys.

3 Allow to dry.

4 To remove any crumbs and dust from beneath the keys, you can use a camera blower with a brush or cool air from a hair drier.

Note: Avoid spraying cleaner directly on the display or the keyboard.

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Lenovo U455 manual „ Cleaning your computer keyboard

Contents

Lenovo IdeaPad U455 First Edition December Copyright Lenovo Dear user Explanation of hard disk capacity Page Page Contents Appendix C. Lenovo limited Contents Appendix B. Use and careAppendix F. Features 120„ Read this first Important safety informationImportant safety information IiiImportant safety information Unpack Important safety information Working place Important safety information Correct usage procedures Important safety information ViiImportant safety information Service and upgrades ViiiGetting to know your computer Integrated Power buttonGetting to know your computer CameraFingerprint TouchpadReader Left-side view Adapter jackRight-side view Bottom view SIM card slot Select models only Battery packCompartment Battery latch MemoryConnecting the computer to an electrical outlet „ Connecting to the powerInstalling the battery pack Learning the basicsLearning the basics „ Configuring the operating system„ Turning on the computer Putting your computer into sleep state„ Shutting down your computer „ Checking battery status Using AC adapter and battery„ Charging the battery „ Removing the battery pack „ Handling the battery Left click button Using the touchpadRight click button Two-Finger Scrolling „ GesturesPinch zoom RotatingLearning the basics Three-Finger Flick Using the keyboard „ Numeric keypad„ Function key combinations Fn + F2 Fn + EscFn + F1 Fn + F3Connecting external devices „ Using memory cards not supplied„ Inserting a memory card „ Connecting a universal serial bus USB device„ Removing a memory card „ Connecting a Bluetooth device Select models only Enabling Bluetooth communications on your computerSwitching GPU Select models only Learning the basics Special keys and buttons Volume buttons ~ Learning the basics OneKey Rescue system buttonIndicator System status indicatorsTouchpad indicator Securing your computer „ Attaching a security lock not supplied„ Using VeriFace „ Using passwords„ Fingerprint reader Using the Internet Wired connection„ Hardware connection „ Software configurationUsing the Internet CableWireless connection Wi-FiSoftware configuration „ Using Wi-Fi/WiMax Select models onlyEnabling wireless connection Hardware connection„ Using Mobile Broadband Select models only Inserting the SIM card Removing the SIM card Using the Internet OneKey Rescue system OneKey Rescue system„ Introduction OneKey Rescue system OneKey Rescue system Troubleshooting Frequently Asked QuestionsTroubleshooting Where are the recovery discs?What can I do if the backup process fails? Troubleshooting Display problemsProblems with GPU switching Computer is onKeyboard problems Troubleshooting Password problemSleep or hibernation problems Mode immediately after Troubleshooting Computer screen problems Sound problemsHard disk drive problem Troubleshooting Battery problemsStartup problem Troubleshooting OneKey Rescue system problems Other problemsConnected external To replace the battery, do the following Replacing the batteryUpgrading and replacing devices Upgrading and replacing devices Replacing the hard disk drive Handling a hard disk driveUpgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Replacing memory Upgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Appendix A. Getting help and service Appendix A. Getting help and service Getting help on the WebAppendix A. Getting help and service Appendix A. Getting help and service Getting help around the world Appendix B. Use and care information „ Be careful about where and how you workCaring for your computer „ Notice of static-electricity Appendix B. Use and care information„ Be gentle with your computer „ Carry your computer properly„ For outdoor use „ Handle storage media and drives properly„ Take care in setting passwords „ Data safety„ Other important tips Appendix B. Use and care information Accessibility and comfort „ Ergonomic information„ What if you are traveling? „ Questions about vision?Maintenance „ General tips for maintenanceAppendix B. Use and care information „ Cleaning the cover of your computer „ Cleaning your computer keyboard „ Cleaning your computer display Appendix C. Lenovo limited warranty „ What this warranty covers„ What your service provider will do to correct problems „ How to obtain warranty serviceAppendix C. Lenovo limited warranty Information „ Replacement of a product or part „ Your additional responsibilities „ Use of personal information„ What this warranty does not cover „ Limitation of liability „ Dispute resolution „ Other rights „ European Economic Area EEA„ Lenovo Turkey address Lenovo Technology B.V. Turkiye Istanbul SubesiWarranty information „ Types of warranty service Customer Replaceable Unit CRU ServiceCourier or Depot Service Appendix C. Lenovo limited warranty On-site ServiceCustomer Carry-In or Mail-In Service Product Exchange Service Appendix D. Customer replaceable units CRUs Appendix D. Customer replaceable units CRUs Appendix E. Notices Appendix E. Notices „ Export classification notice 100Energy Star model information 101102 Windows„ Wireless interoperability Wireless related information103 „ Usage environment and your health 104„ Safety information related to Mobile Broadband 105106 „ Federal Communications Commission FCC Statement Electronic emissions notices107 „ Industry Canada Class B Emission Compliance Statement 108„ German Class B Compliance Statement „ Avis de conformité à la réglementation d’Industrie Canada109 110 „ European Union Compliance Statement Class B Compliance 111112 „ Korea Class B „ Japan Compliance Statement for Power line Harmonics113 „ General recycling statement Weee and recycling statements114 EU Weee statements 115Japan recycling statements 116„ Disposing of a Lenovo Computer Components 117118 119 Model Name IdeaPad U455 Appendix F. Features and Specifications120 Form Factor121 Appendix F. Features and Specifications PortsOthers Trademarks 122Index 123124 Index125 Page Do not Return IT to the Store If your product is not working correctlyNew World. New Thinking.TM