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Lenovo 20AA000BUS, T431s, 20AA000MUS manual Replacing devices

Models: 20AA T431s 20AA000MUS 20AA000BUS

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7. Turn the computer over again. Connect the ac power adapter and all cables.

Chapter 6. Replacing devices 77

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Lenovo 20AA000BUS, T431s, 20AA000MUS manual Replacing devices

Contents

User Guide Safety, Warranty, and Setup Guide Regulatory Notice Contents Replacing devices Appendix F. EurAsia Compliance Mark Iv User Guide Protect yourself from the heat that your computer generates Read this firstPrevent your computer from getting wet Protect the cables from being damagedProtect your computer and data when moving it Important safety informationHandle your computer gently Carry your computer carefullySafety guidelines Service and upgradesConditions that require immediate action Power cords and power adapters Power supply statement Extension cords and related devicesPlugs and outlets General battery notice Built-in rechargeable battery noticeExternal devices Heat and product ventilation Lithium coin cell battery noticeElectrical current safety information Using headphones or earphones Additional safety informationLiquid crystal display LCD notice Xiv User Guide Locating computer controls, connectors, and indicators Product overviewFront view Camera Power buttonMicrophones Fingerprint reader on some modelsMini DisplayPort connector Always On USB 3.0 connectorRight-side view Fan louversEthernet connector Power connectorLeft-side view Security keyholeBottom view Rear view Status indicatorsSpeaker-mute indicator Fn Lock indicatorMicrophone-mute indicator Camera status indicatorLocating important product information Machine type and model informationFCC ID and IC Certification information Microprocessor FeaturesMemory Storage deviceSpecifications Accessing Lenovo programs on the Windows 7 operating system Operating environmentLenovo programs Program Icon name Accessing Lenovo programs from Control PanelAccessing Lenovo programs on the Windows 8 operating system Lenovo program overview Lenovo Solution Center Lenovo SettingsPassword Manager Power ManagerSystem Update Frequently asked questions Using your computerRegistering your computer Can I get my user guide in another language?How can I use the battery power more effectively? Is getting connected in different locations a challenge?How do I attach or replace a device? Function keys Special keysWindows key Using the ThinkPad pointing deviceChanging the cap Customizing the ThinkPad pointing deviceChecking the battery status Power managementCharging the battery Using the ac power adapterMaximizing the battery life Connecting the ac power adapterPower-saving modes Managing the battery powerSelect Power off display Sleep HibernationClick Administrative Tools Connecting to the networkClick the Global Power Settings tab Ethernet connectionsWireless LAN Wireless connectionsTips for using the wireless LAN feature Wireless WANUsing Bluetooth Establishing a wireless connectionBluetooth Click Hardware and Sound Click Devices and PrintersSelect Send To Bluetooth Devices Checking the wireless network connection statusAccess Connections gauge Access Connections status iconUsing an external monitor Enabling or disabling the wireless featuresAccess Connections wireless status icon Connecting an external monitor Setting the monitor typeSet Resolution Click Advanced Settings Using the Extend desktop function Changing display settingsConsiderations for using the Extend desktop function Considerations for attaching an external monitorUsing audio features Setting up a presentationConfiguring for sound recording Using the cameraConfiguring camera settings Then click Hardware and Sound Realtek HD Audio ManagerUsing a media card Inserting a media cardRemoving a media card Accessibility and comfort You and your computerErgonomic information Comfort Accessibility informationTravel tips Traveling with your computerAssistive technologies Screen-reader technologiesTravel accessories Passwords and sleep mode Using passwordsTyping passwords SecurityHard disk passwords Power-on passwordSetting a power-on password Select Power-on PasswordSelect Hard Disk 1 Password or Hard Disk 2 Password Setting a hard disk passwordChanging or removing a hard disk password Supervisor passwordSelect Supervisor Password Setting, changing, or removing a supervisor passwordHard disk security Using Windows BitLocker Drive EncryptionSetting the security chip Setting the security chipEncryption Using the fingerprint reader Enrolling your fingerprintSwiping your finger over the reader Maintaining the fingerprint reader Protecting data against viruses Using firewallsSecurity User Guide Recovery overview for the Windows 7 operating system Recovery overviewCreating and using a recovery media Creating recovery mediaPerforming a backup operation Performing backup and recovery operationsPerforming a recovery operation Using the Rescue and Recovery workspaceClick the Restore your system from a backup icon Rescue files from your hard disk drive or from a backupCreating and using a rescue medium Using a rescue mediumCreating a rescue medium Solving recovery problems Reinstalling preinstalled programs and device driversReinstalling preinstalled programs Reinstalling preinstalled device driversResetting your computer to the factory default settings Recovery overview for the Windows 8 operating systemRefreshing your computer Advanced startup optionsRecovery overview User Guide Select Disable Built-in Battery Disabling the built-in batteryReplacing devices Static electricity preventionInstalling or replacing the SIM card Replacing the base cover assembly Replacing the hard disk drive or solid-state drive Replacing devices Replacing a memory module Replacing an M.2 wireless LAN card User Guide Replacing devices Replacing an M.2 wireless WAN card Replacing devices User Guide Replacing the backup battery Replacing the keyboard Replacing devices User Guide Replacing devices User Guide Replacing devices User Guide Enhancing your computer Finding ThinkPad optionsThinkPad port replicators and docking stations Front view Enhancing your computer Power connector Connect the ac power adapter Enhancing your computer Attaching a ThinkPad port replicator or docking station Enhancing your computer Detaching a ThinkPad port replicator or docking station Security feature Using the system lock key Advanced configuration Installing a new operating systemBefore you begin Select UEFI/Legacy Boot Installing the Windows 7 operating systemInstalling the registry patches for Windows Installing the Windows 7 fix modulesInstalling the driver for USB 3.0 for Windows Installing the Windows 8 operating systemSelect Startup Boot Installing the Windows 8 fix modulesThinkPad Setup Installing other drivers and software for WindowsClick Change display settings Click Advanced Settings Click PropertiesMain menu Config menuMenu item Submenu item Value Comments Network USB Keyboard/Mouse Maximize Performance Ahci Security menu Date and Time menuMenu item Submenu item Value Comments Password Bios ROM Uefi Bios Startup menu Standard ModeChanging the startup sequence Restart menu Network BootUpdating your system Uefi Bios Using system managementSystem management Setting management features Network Boot sequenceAsset ID Eeprom Flash update Preventing problems General tips for preventing problems109 Getting the latest drivers using System Update Making sure device drivers are currentGetting the latest drivers from the Web site Taking care of your computer Be careful about where and how you workBe gentle with your computer Carry your computer properlyTake care in setting passwords Cleaning the cover of your computerCare for the fingerprint reader Register your computer Be sure not to modify your computerCleaning your computer display Cleaning your computer keyboardUser Guide Diagnosing problems Troubleshooting computer problemsTroubleshooting Computer stops respondingError messages Spills on the keyboardIf you spill something on your computer Troubleshooting computer problems Errors without messages Memory module problems Beep errorsNetworking problems Ethernet problemsSolution Wireless LAN problem Problems with the keyboard and other pointing devicesWireless WAN problem Bluetooth problemsKeyboard problems Problems with the display and multimedia devicesComputer screen problems Click KeyboardClick Advanced Settings External monitor problemsClick Advanced Settings Set Resolution Audio problems Click Hardware and SoundDouble-clickSound, video and game controllers Fingerprint reader problems Battery and power problemsBattery problems Power problems An ac power adapter problemPower button problem Boot problemsSleep and hibernation problems Hard disk drive problems Problems with drives and other storage devicesProblems with ports and connectors Software problemSolid-state drive problem USB problemUser Guide Before you contact Lenovo Getting supportUsing diagnostic programs Getting help and serviceLenovo Support Web site Calling LenovoTelephone numbers Purchasing additional servicesUser Guide Wireless interoperability Wireless related informationAppendix A. Regulatory information 137Usage environment and your health Locations of the UltraConnect wireless antennasExport classification notice Locating wireless regulatory noticesElectronic emission notices Federal Communications Commission Declaration of ConformityGerman Class B compliance statement Appendix A. Regulatory information User Guide Important Weee information Appendix B. Weee and recycling statementsJapan recycling statements 143Battery recycling information for the European Union Recycling information for BrazilDisposing of Lenovo computer components Appendix B. Weee and recycling statements User Guide Appendix C. Energy Star model information Click Hardware and Sound Device Manager147 Click OK 149 Appendix D. NoticesTrademarks China RoHS Turkish RoHS Ukraine RoHS151 India RoHS 153 Appendix F. EurAsia Compliance MarkUser Guide Page Part Number 1P P/N