Instruction/ maintenance manual of the product 20AA Lenovo
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User Guide ThinkP ad T431s.
Notes: Before using this information and the pr oduct it supports, ensure that you read and understand the following: • Safety, Warranty, and Setup Guide • Regulatory Notice • “Important safet.
Contents Read this rst . . . . . . . . . . . . . . v Important safety information . . . . . . . . . . vi Conditions that requir e immediat e action . . vii Safety guidelines . . . . . . . . . . . . vii Chapter 1. Product overview . . . . . . 1 Locating computer controls, connect ors, and indicators .
Chapter 6. Replacing devices . . . . . 59 Static electricity prevention . . . . . . . . . . 59 Disabling the built-in battery . . . . . . . . . 59 Installing or replacing the SIM car d . . . . . . . 60 Replacing the base cover assembly . . . . . . 61 Replacing the hard disk drive or solid-stat e drive .
Kor ea Class B compliance statement . . . . 141 Japan VCCI Class B compliance statement . . 141 Japan compliance stat ement for products which connect to the power mains with rat ed curr ent less than or equal t o 20 A per phase . . . . . . . . . . . .
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Read this rst Ensure that you follow the important tips given her e to get the most use and enjoyment out of your computer . F ailure to do so might lead t o discomfort or injury, or cause your comput er to fail. Protect yourself from the heat that your computer generates.
Protect your computer and data when moving it. Before moving a computer equipped with a har d disk drive, do one of the following, and ensure that the power button is off or is blinking: • T urn it off. • Put it in sleep mode. • Put it in hibernation mode.
Conditions that r equire immediate action Products can become damaged due to misuse or neglect. Some product damage is serious enough that the pr oduct should not be used again until it has been inspected and, if necessary, repaired by an authorized servicer .
ensure that the power is turned off and that the product is unplugged from any power source. If you have any questions or concerns, contact the Customer Support Center . Although ther e are no moving parts in your computer after the power cor d has been disconnected, the following warnings ar e requir ed for your safety .
T o prevent possible overheating, do not cover the power adapter with clothing or other objects when the power adapter is plugged into an electrical outlet.
Hazardous voltage, current, and energy levels are pr esent inside any component that has this label attached. There ar e no serviceable parts inside these components.
Lithium coin cell battery notice DANGER Danger of explosion if battery is incorrectly replaced. When replacing the lithium coin cell battery, use only the same or an equivalent type that is recommended by the manufacturer . The battery contains lithium and can explode if not pr operly used, handled, or disposed of.
F or your safety, always follow these basic precautions with your computer: • Keep the cover closed whenever the computer is plugged in. • Regularly inspect the outside of the computer for dust accumulation. • Remove dust from vents and any perforations in the bez el.
Liquid crystal display (L CD) notice CA UTION: The liquid crystal display (L CD) is made of glass, and rough handling or dr opping the computer can cause the L CD to break.
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Chapter 1. Pr oduct overview This chapter provides information about the connector locations, important pr oduct labels, computer features, specications, oper ating envir onment, and preinstalled progr ams.
1 Camer a Use the camera t o take pictur es or hold a video confer ence. F or mor e information, see “Using the camer a” on page 33. 2 Microphones The microphones captur e sound and voice when used with a progr am capable of handling audio. 3 P ower butt on Use the power butt on to turn on the computer .
Right-side view Figure 2. Right-side view 1 Always On USB 3.0 connect or 3 F an louvers 2 Mini DisplayP ort connector 4 Security keyhole 1 Always On USB 3.0 connect or By default, the Always On USB 3.0 connector enables you to charge some mobile digital devices and smartphones when your comput er is in sleep mode.
Note: T o ensure pr oper airow , do not place any obstacles in fr ont of the fan. 6 Security keyhole T o prot ect your comput er fr om theft, you can purchase a security cable lock that ts the security keyhole t o lock the computer t o a stationary object.
3 VGA connector Use the Video Gr aphics Arr ay (VGA) connector t o connect the comput er t o a VGA-compatible video device, such as a VGA monitor . Note: If you attach your comput er to a docking station or port replicat or , use the VGA connect or on the docking station or port replicat or , instead of the one on the computer .
1 Speakers Y our comput er is equipped with a pair of ster eo speakers. 2 Emer gency reset hole If the computer does not r espond, remove the ac power adapter and r eset the comput er by inserting a straight ened paper clip into the emer gency r eset hole to turn off the computer .
1 Fn Lock indicator When the Fn Lock indicat or is on, it indicates that the Fn L ock function is enabled. F or mor e information, see “Special keys” on page 19. 2 Speak er-mute indicator When the speaker -mute indicator is on, it indicates that the speakers ar e mut ed.
Locating important product information This section helps you locate the following important information for your computer: • Machine type and model number • FCC ID and IC Certication number Machine type and model information The machine type and model number information is labeled on your computer .
F eatures This topic lists the features of your computer . Microprocessor T o view the micropr ocessor information of your computer , do the following: • F or Windows 7: Click Start , right-click Computer , and click Pr operties .
Keyboar d • 6-row backlit keyboard • F unction keys • ThinkP ad pointing device (T rackP oint pointing stick and multi-touch t ouch pad) Interface • Always on USB 3.
• F or the percentage of the batt ery power r emaining, check the batt ery status icon in the Windows notication area. Operating environment This section pr ovides information about the operating envir onment of the computer .
Note: If a progr am icon is dimmed in the navigation window of the Lenovo ThinkV antage T ools progr am, you need to manually install the progr am. Double-click the pr ogram icon, and then follow the instructions on the screen. When the installation process complet es, the progr am icon will be activated.
T able 2. Programs in Contr ol P anel (continued) Progr am Control P anel section Green text in Contr ol P anel Fingerprint Softwar e System and Security Hardwar e and Sound Lenovo - Fingerprint Reade.
Note: The P assword Manager progr am is not preinstalled on your computer . Y ou can download the P assword manager pr ogram fr om the Lenovo Support Web sit e at: http://www.lenovo.com/support Lenovo program overview This t opic provides information about some Lenovo progr ams.
The Lenovo QuickSend pr ogram enables you to instantly send les t o your wireless LAN dir ect community . Y ou can pair with your friends and family nearby, and send your les quickly, dir ectly, and securely . • Lenovo QuickSnip The L enovo QuickSnip progr am enables you to gr ab and save a screenshot.
T o start the SimpleT ap progr am in a quick way, click the r ed SimpleT ap launch point on the deskt op. The r ed launch point is available on the desktop aft er you have launched the SimpleT ap pr ogram for the rst time. Note: The SimpleT ap progr am is only available on certain models preinstalled with the Windows 7 operating system.
Chapter 2. Using your computer This chapter provides information on using some of the comput er components. This chapter contains the following topics: • “Registering your comput er ” on page 17.
How can I use the battery power more effectively? • T o conserve power , or t o suspend oper ation without exiting pr ograms or saving les, see “P ower-saving modes” on page 24 . • T o achieve the best balance between performance and power saving, creat e and apply power plans.
Special keys Y our computer has several special keys to help you work easily and effectively . F unction k eys The keyboar d has several function keys, which consist of the Fn key 1 , the function k eys 2 , and some other k eys. • + Enables or disables the Fn L ock function.
• F or Windows 8: Opens the Settings charm. F or Windows 7: Opens Contr ol P anel . • F or Windows 8: Opens the Search charm. F or Windows 7: Opens Windows Search . • Views the pr ograms that you have opened. • F or Windows 8: Views all the pr ograms.
T o use the T r ackPoint pointing stick, apply pr essure to the nonslip cap on the pointing stick in any direction parallel to the keyboar d. Then you can move the cursor . But the pointing stick itself does not move. The speed at which the cursor moves depends on the pr essure you apply to the pointing stick.
P ower management When you need to use your computer away fr om electrical outlets, you depend on battery power to keep your computer running. Different computer components consume power at differ ent r ates. The more you use the power -intensive components, the faster you consume batt er y power .
Using the ac power adapter The power to run your computer can come either fr om the lithium-ion (Li-ion) batt ery pack provided with it, or from ac power thr ough the ac power adapter .
• Recharge the battery completely befor e using it. Y ou can see whether the battery is fully charged fr om the battery status icon in the Windows notication ar ea. • Always use power management featur es such as power modes, scr een blank, sleep, and hibernation.
T o put the comput er into hibernation mode, change your power plan settings. T o access power plan settings, do the following: – F or Windows 7: Start the P ower Manager pr ogram and then click the Power Plan tab.
T o connect to a network thr ough Ethernet, do the following: • F or Windows 7: Use the Access Connections pr ogram. F or instructions on how to start the Access Connections progr am, see “ Accessing Lenovo pr ograms on the Windows 7 oper ating syst em” on page 11 .
• Keep your comput er away from your body . • Place your comput er on a at surface and open your comput er display to an angel of slightly more than 90 degr ees. • Place your computer away from concr ete or brick walls that might dampen cellular signals.
2. Select Send T o ➙ Bluetooth Devices . Note: If you use the wireless featur e (the 802.11 standar d) of your comput er simultaneously with a Bluet ooth option, the data tr ansmission speed can be delayed and the performance of the wireless feature can be degraded.
Access Connections wireless status icon The Access Connections wir eless status icon displays the status and signal str ength of your wir eless connection.
Y ou can set any resolution for either the computer display or the ext ernal monit or . When you use both at the same time, the r esolution of both is the same. If you set a higher r esolution for the computer display, you can see only part of the screen at a time.
14. Select Manufacturer and Model for your monitor . If you cannot nd your monitor on the list, stop the installation of this driver and use the driver shipped with your monitor .
Notes: • If the monitor connect or is not compatible with the mini DisplayP ort connector or VGA connector on your computer , you can use a converter to establish the connection. Convert cables are available as options from Lenovo at http://www.lenovo.
Note: The combo audio jack does not support a conventional micr ophone. The following table shows which functions of the audio devices attached t o the jacks on your comput er ar e supported. T able 3. Audio feature list Jack Headset with a 3.5-mm (0.
Using a media card Y our comput er has one media car d reader slot. The media card reader slot supports the following four types of car ds: • MultiMediaCar d (MMC) • Secure Digital (SD) card • S.
Chapter 3. Y ou and your computer This chapter pr ovides information about accessibility, comfort, and tr avelling with your computer . • “ Accessibility and comfort” on page 35 • “T ravelin.
Display : P osition the display to maintain a comfortable viewing distance of 510-760 mm (20-30 inches). A void glare or r eections on the display from overhead lighting or outside sources of light. K eep the display screen clean and set the brightness to levels that enable you to see the scr een clearly .
Assistive t echnologies enable users to access information in the most appropriate way . Some of these technologies ar e alr eady pr ovided in your oper ating syst em. Others can be purchased thr ough vendors, or accessed through the World Wide W eb http://www.
T ravel accessories The following is a checklist of items to consider packing when you are going to tr avel: • ThinkP ad ac power adapter • External mouse (if you ar e accustomed t o using one) .
Chapter 4. Security This chapter pr ovides information about how to protect your computer fr om theft and unauthorized use. • “ A ttaching a mechanical lock” on page 39 • “Using passwords”.
1. P ress F1. The icon changes t o this: 2. T ype the mast er hard disk passwor d. Notes: • T o return to the icon , press F1 again. • Pr ess the Backspace k ey if you ent er a wr ong passwor d while you are typing your passwor d.
no one else knows it. Then the administr ator sets a user passwor d for each computer in the network, and tells each user the password for his or her computer . The user can then change the user passwor d as desired, but the administr ator still can get access by using the mast er password.
The ne xt time you turn on your computer , you will have to type the user or mast er hard disk password in order to start your computer and get access to your oper ating system.
– Deleting the power-on passwor d – Changing or deleting the supervisor password – Enabling or disabling the Wake on LAN featur e – Enabling or disabling the Internal Network Option ROM featur.
a. In the Enter Current P assword eld, type the curr ent supervisor password and pr ess Enter . b. In the Enter New P assword eld, type the new supervisor passwor d; then r etype the passwor d you just ent ered to verify it in the Conrm New P assword eld.
T o check the BitL ocker status, go to Control P anel, and click System and Security ➙ BitLock er Drive Encryption F or more information about Windows BitLock er Drive Encryption, see the Windows Help and Support, or search for “Microsoft Windows BitL ocker Drive Encryption St ep-by-Step Guide” on the Micr osoft Web site.
7. Using the cursor keys, move to an item you want t o set. When the item is highlight ed, press Enter . 8. Set other it ems that you want to set. 9. P ress F10 to save changes and exit. 10. P ress Enter in the Setup Conrmation window t o conrm the exit.
2. Apply light pr essure and swipe your nger acr oss the reader in one smooth motion. Maintaining the ngerprint reader The following actions could damage the ngerprint r eader or cause it not to work pr operly: • Scratching the surface of the reader with a har d, pointed object.
Notice on deleting data from your hard disk drive or solid-state drive As computers spread into every corner of life, they pr ocess mor e and mor e information. The data on your computer , some of which might be sensitive, is st ored on a hard disk drive or solid-state drive.
F or mor e information about how to use your antivirus softwar e, refer t o the help information system of your antivirus softwar e. Chapter 4 . Security 49.
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Chapter 5. Recovery overview This chapt er provides information about the r ecovery solutions. • “Recovery overview for the Windows 7 operating system” on page 51 • “Recovery overview for th.
T o cr eate recovery media, click Start ➙ All P rograms ➙ Lenovo ThinkV antage T ools ➙ F actor y Recovery Disks . Then, follow the instructions on the screen. Using recovery media This section provides instructions on how t o use r ecovery media.
P er forming a recovery operation This section provides instructions on how to perform a recovery oper ation using the Rescue and Recovery progr am. 1. F r om the Windows desktop, click Start ➙ All P rograms ➙ L enovo ThinkV antage T ools ➙ Enhanced Backup and Restore .
4. Do one of the following: • T o rescue les fr om your har d disk drive or from a backup, click Rescue les and follow the instructions on the screen.
3. In the Boot Menu window , select the USB hard disk drive as the rst boot device and pr ess Enter . The rescue medium starts. When the rescue medium starts, the Rescue and Recovery workspace opens. The help information for each featur e is available fr om the Rescue and Recovery workspace.
• Use r ecovery media if all other methods of recovery have failed and you need to r estore the har d disk drive to the factory default settings. See “Cr eating and using a r ecovery media” on page 51.
2. In the Advanced startup section, click Restart now ➙ T roubleshoot ➙ Advanced options . 3. Restart your comput er following the instructions on the scr een.
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Chapter 6. Replacing devices This chapter contains the following items: • “Static electricity pr evention” on page 59 • “Disabling the built-in batt ery” on page 59 • “Installing or r .
Installing or replacing the SIM card Before you start, print these instructions. Y our computer might requir e a SIM card t o establish a wireless W AN connection.
4. If there already is a SIM car d in the tr ay, remove the SIM card. 5. C arefully install a new SIM card into the tr ay . 6. Insert the SIM card tray back into the computer . 7. Connect the ac power adapt er and all cables. Replacing the base cover assembly Before you start, print these instructions.
4. Reinstall the new base cover assembly and tighten the scr ews. 5. T urn the computer over again. Connect the ac power adapter and all cables. Replacing the hard disk drive or solid-state drive Before you start, print these instructions. Attention: The hard disk drive or solid-state drive is very sensitive.
1. Disable the built-in battery . See “Disabling the built-in batt ery” on page 59. 2. Close the comput er display, and turn the computer over . 3. Remove the base cover assembly . See “Replacing the base cover assembly” on page 61. 4. Remove the screw that secur es the hard disk drive or solid-state drive.
7. Install the new hard disk drive or solid-stat e drive with br acket. 8. Install the scr ew t o secure the har d disk drive or solid-state drive. 9. T urn the computer over again. Connect the ac power adapter and all cables. Replacing a memor y module Before you start, print these instructions.
4. If a memory module already is installed in the memory slot, you need t o r emove it rst. Press out on the latches on both edges of the slot at the same time 1 , and then remove the memory module 2 . Save the r emoved memory module for futur e use.
DANGER Electric current from power , telephone, and communication cables is hazardous. T o avoid shock hazard, disconnect the cables befor e opening the cover of this slot. Attention: Before you start installing an M.2 wir eless LAN card, touch a metal table or a grounded metal object.
6. C arefully r emove the wir eless LAN card out of the slot. 7. Align the notched edge of the new wir eless LAN car d with the key in the slot. Then carefully insert the card into the slot. 8. Pivot the new wireless LAN card downwar d 1 and then install the scr ew to secur e the card in place 2 .
9. Connect the antenna cables to the new wireless LAN card. Ensur e that you attach the gr ay cable to the main connector on the card, and the black cable to the auxiliary connector on the car d. 10. Reinstall the base cover assembly . See “Replacing the base cover assembly” on page 61.
4. If a tool is pr ovided with the new card to help you disconnect cables, use the t ool to disconnect the cables from the old card. If no such a tool is provided, hold the cable connector with your ngers and gently disconnect each cable from the old car d.
7. Align the notched edge of the new wir eless WAN card with the key in the slot. Then carefully insert the card into the slot. 8. Pivot the new wireless WAN car d downward 1 and then install the scr ew to secur e the card in place 2 . 9. Connect the antenna cables to the new wireless W AN car d.
Replacing the backup battery Before you start, print these instructions. DANGER If the backup battery is incorrectly replaced, ther e is danger of an e xplosion. The backup battery contains a small amount of harmful substances. T o avoid possible injury: • Replace only with a battery of the type recommended by L enovo.
5. Install the new backup battery 1 , and then attach the connect or 2 . 6. Reinstall the base cover assembly . See “Replacing the base cover assembly” on page 61. 7. T urn the computer over again. Connect the ac power adapter and all cables. Replacing the keyboard Before you start, print these instructions.
3. T o r eveal the screw heads beneath the keyboar d fr ame, slide the keyboard fr ame forward by 2.5 mm (0.1 inch) with the keyboar d multi-tool. Note: Do not press and hold the keys while sliding the keyboard fr ame, otherwise the keyboar d fr ame cannot be moved.
6. P ut the keyboard on the palm r est and detach the connect ors. Then remove the keyboar d. T o install the new k eyboard, do the following: 1. A ttach the connectors and then turn over the keyboard.
2. Insert the keyboard into the k eyboard be zel as shown. Ensure that the fr ont edge of the keyboar d is under the fr ame of the keyboard bez el. 3. Ensur e that the screw heads ar e exposed completely . Otherwise, r eveal the screw heads by sliding the keyboard frame forward with the keyboar d multi-tool.
4. Tighten the screws with the keyboar d multi-tool to secur e the keyboar d in place. 5. Slide the keyboard fr ame backward by 2.5 mm (0.1 inch) with the keyboard multi-t ool. Hide the latches of the keyboar d fr ame under the keyboar d be zel by pushing the latches with your nger as shown.
7. T urn the computer over again. Connect the ac power adapter and all cables. Chapter 6 . Replacing devices 77.
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Chapter 7. Enhancing your comput er This section provides information on installing devices and taking advantage of your computer's high-technology features.
F ront view ThinkPad P ort Replicator Series 3 and ThinkPad P ort Replicator Series 3 with USB 3.0 1 P ower button : P ress the power button to turn the comput er on or off. 2 Eject button : P ress the eject butt on t o r elease the computer fr om the port replicat or .
4 Eject button : P ress the eject button to r elease the computer fr om the docking station. 5 Sliding adjuster : Use the sliding adjust er as a guide to align the docking station connector on your computer as you attach the docking station. 6 Docking station connector : This is wher e you attach your computer .
Rear view ThinkPad P ort Replicator Series 3 and ThinkPad P ort Replicator Series 3 with USB 3.0 1 power connector : Connect the ac power adapter . 2 Ethernet connector : Connect the port replicat or to an E thernet LAN. The indicator on the connector is the same as that on the computer .
2 DisplayP ort connect or : Connect a display device. 3 DVI connect or : Connect a monit or that supports Single-Link DVI. Note: The DVI connector provides a digital interface only . This connector can only be used with a computer that supports DVI connection established thr ough docking stations.
Note: F or the ThinkP ad Mini Dock Plus Series 3 (170 W) and ThinkPad Mini Dock Plus Series 3 with USB 3.0 (170 W), use the ac power adapter shipped with your computer . 8 eSA T A connect or or USB 3.0 connector : F or the ThinkP ad Mini Dock Plus Series 3, this is an eSA T A connector for connecting an eSA T A device.
3. P ut your computer on the platform of the docking station, making sure that the top-left corner of the computer is aligned t o the guide plate. 4. Insert your computer into the docking station until you hear a click. The computer is attached to the docking station.
Connecting an external display t o the ThinkP ad Mini Dock Plus Series 3 and the ThinkPad Mini Dock Plus Series 3 with USB 3.0 Group 1 (top gure) and Group 2 (lower gur e) are independent of each other . Each has a DisplayP ort connector and a DVI connector .
3. Detach the Series 3 Dock Adapter fr om the docking station. Security feature Use the security keyhole on the ThinkP ad port replicat or or docking station t o attach a mechanical lock.
Using the system lock key The syst em lock key has two positions, unlocked and locked. When the key is in the locked position, the eject butt on of the docking station is locked, and you cannot remove your computer . The key lock indicator lights when the eject button is lock ed.
Chapter 8. Advanced congur ation While it is important to prot ect les, data, and settings that ar e on the hard disk drive or solid-stat e drive, you also might need to install a new oper ating syst em, install new device drivers, updat e your syst em UEFI BIOS, or recover preinstalled softwar e.
– After the oper ating syst em installation, you should not change the initial UEFI/Legacy Boot setting in ThinkP ad Setup. The UEFI/Legacy Boot setting must be the same as it was when the Windows operating system image was installed. Otherwise, the oper ating syst em will not boot properly .
The name of each subfolder is the number of a x module. F or information about each x module, go t o the Micr osoft Knowledge Base homepage at http://support.microsoft.com, type the number of the x module you need in the sear ch eld, and click Search .
4. Double-click the Setup.ex e le in the C:DRIVERSWINUSB3 .0 dir ectory . 5. Click Ne xt . If the device driver is alr eady installed, click C ancel .
1. T urn on the comput er . When the logo screen is displayed, pr ess the F1 key . The ThinkP ad Setup progr am main menu opens. Note: If you have set a supervisor passwor d, the ThinkP ad Setup pr ogram main menu will be displayed after you enter the password.
Notes: • Default values ar e in boldface . The default settings ar e already optimiz ed for you. If you consider changing the computer conguration, pr oceed with extr eme caution. Setting the congur ation incorrectly might cause unexpect ed r esults.
T able 4. Cong menu it ems (continued) Menu item Submenu item V alue Comments Note: UEFI IPv4 Network Stack, UEFI IPv6 Network Stack and UEFI PXE Boot Priority menus appear when UEFI Only or UEFI First with Both mode is selected in Startup P age.
T able 4. Cong menu it ems (continued) Menu item Submenu item V alue Comments connectors will work as USB 2.0 connectors. T rackP oint • Disabled • Enabled Enable or disable the built-in T r ackPoint pointing device. Note: If you want to use an ext ernal mouse, select Disabled .
T able 4. Cong menu it ems (continued) Menu item Submenu item V alue Comments Adaptive Thermal Management Scheme for A C • Maximize P erformance • Balanced Scheme for Battery • Maximize P erformance • Balanced Select a thermal management scheme to use.
T able 4. Cong menu it ems (continued) Menu item Submenu item V alue Comments system will be automatically powered off. The system is then ready to be serviced. Note: The ac power adapter must be disconnected from the system to perform this operation.
T able 4. Cong menu it ems (continued) Menu item Submenu item V alue Comments combination in the Startup Interrupt Menu window . T o display the Startup Interrupt Menu window , press the Enter key during the power -on self-test (POST). CIRA Timeout 0-255 Note: The default value is 60 seconds.
T able 5. Security menu items Menu item Submenu item V alue Comments Hardwar e P assword Manager • Disabled • Enabled Manage your power-on passwor d, supervisor password, and your har d disk passwords by the management server . Supervisor P assword • Disabled • Enabled See “Supervisor password” on page 42.
T able 5. Security menu it ems (continued) Menu item Submenu item V alue Comments Pr edesktop Authentication • Disabled • Enabled Enable or disable ngerprint authentication before the operating system is loaded.
T able 5. Security menu it ems (continued) Menu item Submenu item V alue Comments Physical Presence for Clear • Disabled • Enabled This option enables or disables the conrmation message when you clear the security chip. Flash BIOS Updating by End-Users • Disabled • Enabled If you select Enabled , all users can update the UEFI BIOS.
T able 5. Security menu it ems (continued) Menu item Submenu item V alue Comments Integr ated C amera • Disabled • Enabled If you select Enabled , you can use the camer a. Microphone • Disabled • Enabled If you select Enabled , you can use the microphones (internal, ext ernal, or line-in).
Attention: • After you change your startup sequence, you must be e xtremely car eful not to specify a wr ong device during a copy, a save, or a format oper ation. If you specify a wr ong device, your data and progr ams might be erased or overwritten.
T able 6. Startup menu items Menu item V alue Comments Boot See “Changing the startup sequence” on page 104 . Network Boot Select the boot device when the syst em wakes from LAN. If W ake on LAN is enabled, the network administr ator can turn on all of the computers in a LAN remot ely by use of network management software.
• Discard Changes : Discard the changes. • Save Changes : Save the changes. Updating your system UEFI BIOS The Unied Ext ensible Firmwar e Interface (UEFI) BIOS is a part of the system pr ograms that make up the basic layer of software built into your computer .
When W ake on LAN is used with network management software, many functions, such as data tr ansfer , software updat es, and Flash updates of UEFI BIOS, can be performed remotely without remote att endance. This updating pr ocess can be done after normal working hours and on weekends, to save time and incr ease productivity .
Note: If you want to initialize the setting to r eturn to the default startup sequence, press F9. The default settings are aut omatically r eloaded. Flash updat e Y our network administrator can remot ely update the system pr ograms on your computer fr om a management console.
Chapter 9. P reventing pr oblems An important part of owning a ThinkP ad notebook computer is maint enance. With proper care, you can avoid common problems.
• If your comput er uses discs as the recovery media, do not r emove the disc fr om the drive until prompt ed to do so. 14. F or suspected hard disk drive issues, r efer to “Diagnosing pr oblems” on page 115 t o run a diagnostic test of the drive before you call the Customer Support Cent er .
F or more information about how to use System Updat e, r efer to “L enovo pr ogram overview” on page 14. T aking car e of your computer Although your computer is designed t o function r eliably in normal work environments, you need t o use common sense in handling it.
• Stor e your ext ernal and removable hard disk drive or optical drives in the appr opriate containers or packaging when they ar e not being used. • Before you install any of the following devices, touch a metal table or a grounded metal object. This action reduces any static electricity fr om your body .
6. Rinse the sponge with clean running wat er . 7. Wipe the cover with the clean sponge. 8. Wipe the surface again with a dry, soft, lint-free cloth. 9. W ait for the surface t o dry completely and r emove any bers from the cloth. Cleaning your computer keyboar d T o clean the computer keyboar d, do the following: 1.
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Chapter 10. T roubleshooting computer pr oblems This chapter pr ovides information on what t o do if you experience a pr oblem with your comput er . This chapter contains the following topics: • “.
• If you cannot turn off your computer by pr essing and holding the power button, remove all power sources from the computer and reset the system by inserting a str aightened paper clip into the emergency r eset hole. T o locat e the emer gency reset hole, see “Bottom view” on page 5.
Solution : Checksum of the Security settings in the EFI V ariable is not correct. Enter ThinkP ad Setup to check security settings, Pr ess F10 and then pr ess Enter t o r estart the system. If you still have a problem, have the comput er serviced. • Message : 0187: EAIA data access error Solution : The access t o EEPROM is failed.
• Message : 2112: Read err or on HDD2 (Mini SA T A) Solution : The Mini SA T A device is not working. Have the Mini SA T A device serviced. • Message : 2200: Machine T ype and Serial Number are invalid. Solution : Machine T ype and Serial Number are invalid.
• Problem : When I turn on the comput er , only a white cursor is displayed on a blank scr een. Solution : If you have modied a partition on your hard disk drive by using partition softwar e, information about that partition, or the master boot recor d might have been destr oyed.
Networking problems The following are the most common networking pr oblems: Ethernet pr oblems • Problem : Y our computer cannot connect t o the network.
A wireless LAN pr oblem Problem : Y ou cannot connect to the network using the built-in wir eless network car d. Solution : • If your system is installed with Windows 7 oper ating syst em, ensure that: – Y our wireless LAN driver is the latest version.
Solution : The cursor might drift when you are not using the T rackP oint pointing stick during normal operation. This is a normal char acteristic of the T r ackP oint pointing stick and is not a defect.
• Problem : The scr een is unreadable or distorted. Solution : Ensur e that: – The display device driver is installed corr ectly . – The scr een resolution and color quality are correctly set. – The monitor type is correct. T o check these settings, do the following: 1.
2. Reconnect the ext ernal monitor t o your computer . 3. Refer t o the manual shipped with the e xternal monitor to check the resolutions and r efresh r ates that are supported.
15. Set Resolution . Note: T o change the color settings, select the Monitor tab, then set Colors . 16. Click OK . • Problem : The scr een is unreadable or distorted. Solution : Ensur e that: – The monitor information is correct and the appr opriate monit or type is selected.
Solution : Change the r esolution and the color depth to lower settings for the primary display . Refer to the solution t o the above pr oblem. • Problem : Display switching does not work. Solution : If you use the Ext end desktop function, disable it, and change the display output location.
themselves. An e xample is the Windows Media Player . Usually the pr ogram has sliders available t o control the sound from within the progr am. • Problem : The balance slider cannot completely mute one channel. Solution : The control is designed to compensate for minor differences in balance and does not completely mute either channel.
1. T urn off the computer . 2. Connect the ac power adapter to the computer and let it charge. If the battery pack cannot be fully charged in 24 hours, call L enovo Customer Service Center to have it serviced.
a. Disconnect the ac power adapter and all cables fr om the comput er . b. Close the comput er display, and turn the computer over . c. Remove the memory module. Refer to “Replacing a memory module” on page 64. d. Remove the M.2 car ds. Refer to “Replacing an M.
resuming the comput er from the sleep mode. When resuming the comput er fr om the sleep mode without attaching the ext ernal monitor or turning it on, and the computer display r emains blank, press F7 to bring up the comput er display .
A solid-state drive pr oblem Problem : When you compress les or folders by use of the data compression function in Windows, and then decompress them, the process of writing to or reading fr om the les or folders is slow. Solution : Apply the disk defr agmentation t ool in Windows for faster access to the data.
132 User Guide.
Chapter 11. Getting support This chapter provides information about getting help and support fr om Lenovo. • “Before you contact Lenovo” on page 133 • “Getting help and service” on page 13.
Getting help and service If you need help, service, technical assistance, or just want more information about Lenovo pr oducts, you will nd a wide variety of sour ces available from Lenovo to assist you.
• Lenovo har dware r epair - If the problem is det ermined to be caused by L enovo hardwar e under warr anty, trained service personnel are available to provide the applicable level of service. • Engineering change management - Occasionally, there might be changes that are requir ed after a product has been sold.
F or mor e information about these services, go t o: http://www.lenovo.com/accessories/services/index.html 136 User Guide.
Appendix A. Regulatory information Wireless relat ed information Wireless interoperability The M.2 wireless LAN car d is designed t o be int eroperable with any wir eless LAN pr oduct that is based on DSSS, CCK, and/or OFDM radio technology, and is compliant t o: • The 802.
• Battery Status Pr ole Usage environment and your health Integr ated wir eless cards emit r adio frequency electromagnetic ener gy like other r adio devices. However , the level of ener gy emitted is far much less than the electromagnetic ener gy emitted by wireless devices like for example mobile phones.
4 Wir eless LAN antenna (auxiliary) Locating wireless regulatory notices F or more information about the wireless r egulatory notices, refer t o the Regulat ory Notice shipped with your computer . If your comput er is shipped without the Regulat ory Notice , you can nd it on the Web site at: http://www.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. European Union - Compliance to the Electromagnetic Compatibility Directive This product is in conformity with the pro.
K orea Class B compliance stat ement Japan VCCI Class B compliance statement Japan compliance statement for products which connect to the power mains with rat ed current less than or equal to 20 A per phase Lenovo pr oduct ser vice information for T aiwan Appendix A.
142 User Guide.
Appendix B. WEEE and r ecycling statements Lenovo encour ages owners of information technology equipment t o responsibly recycle their equipment when it is no longer needed. L enovo offers a variety of progr ams and services to assist equipment owners in recycling their IT pr oducts.
Disposing of L enovo computer components Some Lenovo computer pr oducts sold in Japan may have components that contain heav y metals or other environmental sensitive substances.
Batteries or packaging for batteries ar e labeled in accor dance with Eur opean Dir ective 2006/66/EC concerning batteries and accumulators and wast e batt eries and accumulators. The Directive det ermines the framework for the r eturn and r ecycling of used batt eries and accumulat ors as applicable thr oughout the European Union.
146 User Guide.
Appendix C. ENERG Y S T AR model information ENERG Y ST AR ® is a joint progr am of the U .S. Envir onmental P rotection Agency and the U .S. Department of Ener gy aimed at saving money and pr otecting the environment through energy efcient products and practices.
5. Click the P ower Management tab. 6. Clear the Allow this device to wake the computer check bo x. 7. Click OK . 148 User Guide.
Appendix D . Notices Lenovo may not offer the pr oducts, services, or featur es discussed in this document in all countries. Consult your local Lenovo r epresentative for information on the products and services currently available in your area.
T rademarks The following terms are tr ademarks of Lenovo in the United Stat es, other countries, or both: Lenovo Access Connections Active Pr otection System Rescue and Recovery ThinkP ad ThinkV antage T rackP oint UltraConnect Intel and Intel SpeedS tep ar e trademarks of Int el Corpor ation in the U.
Appendix E. Restriction of Hazardous Substances Directive (RoHS) China RoHS T urkish RoHS The L enovo product meets the r equirements of the Republic of T urk ey Directive on the Restriction of the Use of Certain Hazar dous Substances in Electrical and Electronic Equipment (EEE).
India RoHS RoHS compliant as per E-W aste (Management & Handling) Rules, 2011. 152 User Guide.
Appendix F . EurAsia Compliance Mark © Copyright L enovo 2013 153.
154 User Guide.
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Part Number: Printed in China (1P) P/N: *1P*.
An important point after buying a device Lenovo 20AA (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lenovo 20AA yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lenovo 20AA - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lenovo 20AA you will learn all the available features of the product, as well as information on its operation. The information that you get Lenovo 20AA will certainly help you make a decision on the purchase.
If you already are a holder of Lenovo 20AA, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lenovo 20AA.
However, one of the most important roles played by the user manual is to help in solving problems with Lenovo 20AA. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lenovo 20AA along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
