Lenovo K23 guide

Chapter 5. Troubleshooting

The computer does not return from standby mode and does not work.

•If the computer does not return from standby mode, it may have entered hibernation mode automatically because the battery is depleted. Check the power indicator.

•If your computer is in standby mode connect the AC adapter to the computer, then press any key or the power button.

•If your computer is in hibernation mode or power-off state. Connect the AC adapter to the computer, then press the power button to resume operation.

Note: If the system still does not return from standby mode, your system has stopped responding, and you cannot turn off the computer, reset the computer. However, unsaved data may be lost. To reset the computer, press and hold the power button for 4 seconds or more. If the computer is still not reset, remove the AC adapter and the battery.

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Lenovo K23 manual Computer does not return from standby mode and does not work

Contents

Lenovo K23 First Edition July Copyright Lenovo Respective Users Explanation of hard disk capacity Page Page Contents 127 Contents Appendix C. Lenovo limitedAppendix F. Features 125 Iii Important safety informationImportant safety information „ Read this first Important safety information Unpack Important safety information Working place Important safety information On using Vii Important safety information Viii Important safety information Service and upgrades Getting to know your computer Getting to know your computer Microphone TouchpadBuilt-in Combo port Left-side viewESATA/USB USB port Right-side view Integrated Wireless deviceSwitch Display latch Adapter jack AC power Bottom view Battery latch manual Battery pack „ Read the manuals „ Connect to the powerInstall the battery pack Learning the basics Putting your computer into standby/sleep state „ Configure the operating system„ Turn on the computer Learning the basics „ Shutting down your computer „ Charging the battery Using AC adapter and battery„ Checking battery status „ Removing the battery pack „ Handling the battery Left click button Using the touchpad „ Numeric keypad Using the keyboard „ Function key combinations Learning the basics Special buttons OneKey Rescue System button Learning the basics Mute buttonCustom button C d System status indicators „ Attaching a security lock not supplied Securing your computer „ Fingerprint reader „ Using passwords „ Using memory cards not supplied Connecting external devices „ Removing a memory card „ Connecting an ExpressCard device„ Inserting a memory card Removing an ExpressCard/34 device Learning the basics Inserting an ExpressCard/34 device Enabling Bluetooth communications on your computer „ Connecting a universal serial bus USB device Wired connection Using the Internet Cable „ Software configurationUsing the Internet „ Hardware connection Wi-Fi Wireless connection Hardware connection „ Using Wi-Fi/WiMax specific models onlyEnabling wireless connection Software configuration „ Using Mobile Broadband specific models only Inserting the SIM card Using the Internet „ Introduction OneKey Rescue SystemOneKey Rescue System OneKey Rescue System OneKey Rescue System Frequently asked questions Troubleshooting Where are the recovery discs? Troubleshooting When do I need to restore the system to the factory status? Display problems Troubleshooting Computer is on Password problem Standby or hibernation problems Troubleshooting Keyboard problems Computer does not return from standby mode and does not work Screen is blank Troubleshooting Computer screen problems Hard disk drive problem Troubleshooting Sound problemsBattery problems Other problems Troubleshooting Startup problemOneKey Rescue System problems Connected external Upgrading and replacing devices Replacing the battery„ To replace the battery Upgrading and replacing devices Handling a hard disk drive Replacing the hard disk drive Upgrading and replacing devices Upgrading and replacing devices Replacing memory Upgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Appendix A. Getting help and service Getting help on the Web Appendix A. Getting help and service Appendix A. Getting help and service Appendix A. Getting help and service Getting help around the world Warranty Service Telephone Numbers Caring for your computer „ Be careful about where and how you workAppendix B. Use, and care Information Appendix B. Use, and care Information „ Notice of static-electricity „ Carry your computer properly „ Be gentle with your computer „ Handle storage media and drives properly „ For outdoor use „ Other important tips „ Data safety„ Take care in setting passwords Appendix B. Use, and care Information „ Ergonomic information Accessibility and comfort „ Questions about vision? „ What if you are traveling? „ General tips for maintenance Maintenance Appendix B. Use, and care Information „ Cleaning the cover of your computer „ Cleaning your computer keyboard „ Cleaning your computer display „ What this warranty covers Appendix C. Lenovo limited warranty Appendix C. Lenovo limited warranty „ How to obtain warranty service„ What your service provider will do to correct problems Information „ Replacement of a product or part „ Use of personal information „ Your additional responsibilities „ What this warranty does not cover „ Limitation of liability „ Dispute resolution „ European Economic Area EEA „ Other rights Lenovo Technology B.V. Turkiye Istanbul Subesi „ Lenovo Turkey address Warranty information Customer Replaceable Unit CRU Service „ Types of warranty service Customer Carry-In or Mail-In Service Appendix C. Lenovo limited warranty On-site ServiceCourier or Depot Service Appendix C. Lenovo limited warranty Product Exchange Service Appendix D. Customer replaceable units CRUs Appendix D. Customer replaceable units CRUs Appendix E. Notices Appendix E. Notices „ Export classification notice Lenovo License Agreement License Entitlement Transferability Software Product Specifications Appendix E. Notices Charges No Warranty100 Appendix E. Notices Limitation of Liability 101 General 102Appendix E. Notices Consumer Rights 103 Appendix E. Notices Dispute Resolution 104 Energy Star model information Windows 105Windows XP 106 107 108 „ Wireless interoperability 109 „ Usage environment and your health 110 „ Safety information related to Mobile Broadband 111 112 Electronic emissions notices„ Federal Communications Commission FCC Statement 113 „ Industry Canada Class B Emission Compliance Statement 114 „ Avis de conformité à la réglementation d’Industrie Canada„ German Class B Compliance Statement 115 116 „ European Union Compliance Statement Class B Compliance 117 118 „ Japan Compliance Statement for Power line Harmonics„ Korea Class B 119 Weee and recycling statements„ General recycling statement 120 EU Weee statements 121 Japan recycling statements 122 „ Disposing of a Lenovo Computer Components 123 124 Form Factor Appendix F. Features and specifications125 Model Name K23 Others Appendix F. Features and specifications Ports126 Trademarks 127 128 Index Index 129 130 If your product is not working correctly Do not Return IT to the Store New World. New Thinking.TM