Connected external | Lenovo K23 specs

Chapter 5. Troubleshooting

The computer does not start from the desired device.

•See the Boot menu of BIOS Setup Utility. Make sure that Boot priority order in BIOS Setup Utility is set so that the computer starts from the device you want.

•Also make sure that the device from which the computer starts is enabled. In the Boot menu in BIOS Setup Utility, make sure that the device is included in the Boot priority order list.

•Press F12 when the Lenovo logo appears on the screen while the computer is starting up to select the device you want the computer starts from.

The connected external	• Do not connect or disconnect any external device
device does not work.	cables other than USB while the computer power is
	on; otherwise, you might damage your computer.
	• When using a high power consumption external
	devices such as an external USB optical disk drive,
	use external device power adapter. Otherwise, the
	device may not be recognized, or system shut down
	may result.

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Lenovo K23 manual Connected external

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 Touchpad Built-inMicrophone Left-side view ESATA/USBCombo port 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 Using AC adapter and battery „ Checking battery status„ Charging the battery „ 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 Learning the basics Mute button Custom buttonOneKey Rescue System 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 „ Connecting an ExpressCard device „ Inserting a memory card„ Removing 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 OneKey Rescue System OneKey Rescue System„ Introduction 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 Troubleshooting Sound problems Battery problemsHard disk drive problem Troubleshooting Startup problem OneKey Rescue System problemsOther problems Connected external Replacing the battery „ To replace the batteryUpgrading and replacing devices 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 „ Be careful about where and how you work Appendix B. Use, and care InformationCaring for your computer 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 „ Data safety „ Take care in setting passwords„ Other important tips 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 „ How to obtain warranty service „ What your service provider will do to correct problemsAppendix C. Lenovo limited warranty 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 Appendix C. Lenovo limited warranty On-site Service Courier or Depot ServiceCustomer Carry-In or Mail-In 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 No Warranty 100Appendix E. Notices Charges Appendix E. Notices Limitation of Liability 101 102 Appendix E. Notices Consumer RightsGeneral 103 Appendix E. Notices Dispute Resolution 104 Energy Star model information 105 Windows XPWindows 106 107 108 „ Wireless interoperability 109 „ Usage environment and your health 110 „ Safety information related to Mobile Broadband 111 Electronic emissions notices „ Federal Communications Commission FCC Statement112 113 „ Industry Canada Class B Emission Compliance Statement „ Avis de conformité à la réglementation d’Industrie Canada „ German Class B Compliance Statement114 115 116 „ European Union Compliance Statement Class B Compliance 117 „ Japan Compliance Statement for Power line Harmonics „ Korea Class B118 Weee and recycling statements „ General recycling statement119 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 Appendix F. Features and specifications Ports 126Others 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