Lenovo U31-70 User manual

Lenovo U31-70
Read the safety notices and important tips in the
included manuals before using your computer.
User Guide

First Edition (March 2015)
© Copyright Lenovo 2015.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General
Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set
forth in Contract No. GS-35F-05925.
For details, refer to Guides & Manuals at http://support.lenovo.com.
Regulatory Notice
Before using the product, be sure to read Lenovo Safety and General Information Guide first.
The features described in this guide are common to most models. Some features may not
be available on your computer or your computer may include features that are not
described in this user guide.
Some instructions in this guide may assume that you are using Windows®8.1. If you are
using another Windows operating system, some operations may be slightly different. If
you are using other operating systems, some operations may not apply to you.
Notes
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The illustrations in this manual may differ from the actual product. Please refer to the
actual product.
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Contents
Chapter 1. Getting to know your computer..................................................................................... 1
Top view......................................................................................................................................................... 1
Left-side view ................................................................................................................................................ 5
Right-side view.............................................................................................................................................. 8
Bottom view................................................................................................................................................. 11
Chapter 2. Starting to use Windows 8.1 ........................................................................................ 12
Configuring the operating system for the first time.............................................................................. 12
Operating system interfaces...................................................................................................................... 12
The charms................................................................................................................................................... 13
Putting the computer to sleep or shutting it down................................................................................ 15
Connecting to a wireless network............................................................................................................ 17
Help and support........................................................................................................................................ 18
Chapter 3. Lenovo OneKey Recovery System.............................................................................. 19
Chapter 4. Troubleshooting............................................................................................................ 20
Frequently asked questions ...................................................................................................................... 20
Troubleshooting ......................................................................................................................................... 22
Trademarks ...................................................................................................................................... 25

1
Chapter 1. Getting to know your computer
Top view --------------------------------------------------------------------------------------------------------------------------
Attention:
•When closing the display panel, be careful not to leave pens or any other objects in between the display
panel and the keyboard. Otherwise, the display panel may be damaged.
Note: The dashed areas indicate parts that are not visible externally.
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Chapter 1. Getting to know your computer
aIntegrated camera Use the camera for video communication.
bBuilt-in microphone Captures sound which can be used for video conferencing, voice
narration, or audio recording.
cComputer display The computer display with LED backlight provides brilliant visual
output.
dWireless LAN antennas Connect to a wireless LAN adapter to send and receive wireless radio
signals.
ePower button Press this button to turn on the computer.
fVentilation slots Dissipate internal heat.
Note: Make sure that the ventilation slots are not blocked or else the computer may overheat.
gTouchpad The touchpad functions as a conventional mouse.
Touchpad: To move the pointer on the screen, slide your fingertip over
the pad in the direction in which you want the pointer to move.
Touchpad buttons: The functions of the left/right side correspond to
that of the left/right mouse button on a conventional mouse.
Note: You can enable/disable the touchpad by pressing F6 ( ).

Chapter 1. Getting to know your computer
3
Using the keyboard
Function key combinations
Through the use of the function keys, you can change operational features instantly. To use this
function, press and hold Fn ; then press one of the function keys .
The following describes the features of each function key.
Fn + Home: Activates the pause function.
Fn + End: Activates the break function.
Fn + PgUp: Enables/disables the scroll lock.
Fn + PgDn: Activates the insert function.
Fn + Space
(on select models): Adjusts the keyboard backlight.
a
b
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Chapter 1. Getting to know your computer
Hotkeys
You can access certain system settings quickly by pressing the appropriate hotkeys.
Setting hotkey mode
By default, the hotkey functions are accessible by pressing the appropriate hotkey. However,
you can disable the hotkey mode in the BIOS setup utility.
To disable the hotkey mode:
1Shut down the computer.
2Press the Novo button and then select BIOS Setup.
3In the BIOS setup utility, open the Configuration menu, and change the setting of HotKey
Mode from Enabled to Disabled.
4Open the Exit menu, and select Exit Saving Changes.
:Mutes/unmutes the sound. :Enables/disables Airplane
mode.
: Decreases the volume level. : Displays all currently active
apps.
:Increases the volume level. :Turns on/off the backlight of the
LCD screen.
:Closes the currently active
window. :Toggles the display between the computer and an external device.
:Refreshes the desktop or the
currently active window. :Decreases the display brightness.
: Enables/disables the touchpad. : Increases the display brightness.
Note: When hotkey mode is disabled, press the Fn key and the appropriate hotkey to access the
corresponding hotkey function.

Chapter 1. Getting to know your computer
5
Left-side view--------------------------------------------------------------------------------------------------------------
aKensington lock slot Attach a security lock (not supplied) here to help protect your computer
from theft and unauthorized use. You can attach a security lock to your
computer to help prevent it from being removed without your
permission. For details on installing the security lock, please refer to the
instructions shipped with the security lock that you have purchased.
Notes:
•Before purchasing any security product, verify that it is compatible with this type of security keyhole.
•You are responsible for evaluating, selecting, and implementing the locking devices and security
features. Lenovo offers no comment, judgment, or warranty regarding the function, quality, or
performance of locking devices and security features.
bAC power adapter jack Connects to the AC power adapter.
cUSB 2.0 port Connects to USB devices.
Notes:
•When the computer is on, the USB port supports charging function.
•When the battery has more than 20% charge, the USB port with the icon can charge external USB
devices while the computer is shut down.
•For details, see “Connecting USB device” on page 9.
dMemory card slot Insert memory cards (not supplied) here.
Note: For details, see “Using memory cards (not supplied)” on page 7.
eCombo audio jack Connects to headsets.
Notes:
•The combo audio jack does not support conventional microphones.
•The recording function might not be supported if third-party headphones or headsets are connected,
due to different industry standards.
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Chapter 1. Getting to know your computer
fSystem status indicators
Indicator Indicator status Meaning
Battery status indicator
On (solid white) The battery has more than 20% charge.
On (solid amber) The battery has between 5% and 20% charge.
Blinking quickly (amber) The battery has less than 5% charge.
Blinking slowly (amber)
The battery is being charged. When the battery
charge reaches 20%, the blinking color will
change to white.
Blinking slowly (white)
The battery has between 20% and 80% charge
and is still charging. When the battery reaches
80% charge the light will stop blinking, but
charging will continue until the battery is fully
charged.
Power status indicator On (solid white) The computer is powered on.
Blinking The computer is in sleep mode.
Off The computer is powered off.

Chapter 1. Getting to know your computer
7
Using memory cards (not supplied)
Your computer supports the following types of memory cards:
• Secure Digital (SD) card
• Secure Digital High Capacity (SDHC) card
• Secure Digital eXtended Capacity (SDXC) card
• MultiMediaCard (MMC)
Inserting a memory card
Insert the memory card until it touches the bottom of the slot.
Removing a memory card
Gently pull the memory card out of the memory card slot.
Notes:
•Insert only one card in the slot at a time.
•This card reader does not support SDIO devices (e.g., SDIO Bluetooth, etc.).
Note: Before removing the memory card, disable it by using the Windows safely remove hardware and eject
media utility to avoid data corruption.

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Chapter 1. Getting to know your computer
Right-side view----------------------------------------------------------------------------------------------------------
aNovo button When the computer is off, press this button to start the Lenovo OneKey
Recovery System or the BIOS setup utility, or to enter the boot menu.
Notes:
•You can use the tip of an unfolded paper clip (or similar object without a sharp tip) to gently press the
Novo button.
•For details, see “Lenovo OneKey Recovery System” on page 19.
bUSB 3.0 port Connect to USB devices.
Notes:
•When the computer is on, the USB port supports charging function.
•For details, see “Connecting USB device” on page 9.
cRJ-45 port Connects the computer to an Ethernet network.
Note: For details, see “Connecting network cables” on page 10.
dHDMI port Connects to devices with HDMI input such as a TV or an external
display.
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Chapter 1. Getting to know your computer
9
Connecting USB device
Your computer comes with three USB ports compatible with USB devices.
The first time you plug a USB device into a particular USB port on your computer, Windows
automatically installs a driver for that device. After the driver has been installed, you can
disconnect and reconnect the device without performing any additional steps.
Before disconnecting a USB storage device, make sure your computer has finished transferring
data to that device. Click the Safely Remove Hardware and Eject Media icon in the Windows
notification area to remove the device before disconnecting.
Note: Typically, Windows detects a new device after it has been connected, and then installs the driver
automatically. However, some devices may require you to install the driver before connecting. Check
the documentation provided by the device’s manufacturer before connecting the device.
Note: If your USB device uses a power cord, connect the device to a power source before connecting it.
Otherwise, the device may not be recognized.

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Chapter 1. Getting to know your computer
Connecting network cables
To insert a network cable, do the following:
1Hold one connector of the network cable to press the RJ-45 cover down gently .
2Insert the connector into the RJ-45 port .
Software configuration
Consult your Internet Service Provider (ISP) for details on how to configure your computer.
a
b
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Chapter 1. Getting to know your computer
11
Bottom view------------------------------------------------------------------------------------------------------------------
aLouvers Allow air to enter the computer for cooling.
bSpeakers Provide audio output.
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Chapter 2. Starting to use Windows 8.1
Configuring the operating system for the first time-----------------
You may need to configure the operating system when it is first used.
The configuration process may include the procedures below:
• Accepting the end user license agreement
• Configuring the Internet connection
• Registering the operating system
• Creating a user account
Operating system interfaces -------------------------------------------------------------------------
Windows 8.1 comes with two main user interfaces: the Start screen and the Windows desktop.
To switch from the Start screen to the Windows desktop, do one of the following:
• Select the Windows desktop tile on the Start screen.
• Press the Windows key + D.
To switch from the desktop to the Start screen, do one of the following:
• Select Start from the charms bar.
• Move the cursor to the lower-left corner, and then select the Start button.
Start screen Desktop
Note: The screenshots of operating system are for reference only. Please refer to the actual product.

Chapter 2. Starting to use Windows 8.1
13
The charms -------------------------------------------------------------------------------------------------------------------
Charms are navigation buttons that let you control your Windows®8.1 experience. Charms
include: Search, Share, Start, Devices, and Settings. The Charms Bar is the menu that contains
the charms.
The five charms provide new and faster ways to perform many basic tasks, and are always
available regardless of whichever app you are currently in.
To display the charms, do one of the following:
• Move the cursor to the upper-right or lower-right corner until the charms bar is displayed.
• Press Windows key + C.
Search charm
The Search charm is a powerful new way to find what you are looking for, including settings,
files, Web images, Web videos, etc.
Share charm
The Share charm lets you send links, photos, and more to your friends and social networks
without leaving the app you are in.

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Chapter 2. Starting to use Windows 8.1
Start charm
The Start charm is a fast way to go to the Start screen.
Devices charm
The Devices charm allows you to connect or send files to any external devices, including the
devices to play, print, and project.
Settings charm
The Settings charm lets you perform basic tasks, such as setting the volume or shutting down
the computer. Also, you can get to the Control Panel through the Settings charm when on the
Desktop screen.

Chapter 2. Starting to use Windows 8.1
15
Putting the computer to sleep or shutting it down--------------------
When you have finished working with your computer, you can put it to sleep or shut it down.
Putting your computer to sleep
If you will be away from your computer for only a short time, put the computer to sleep.
When the computer is in sleep mode, you can quickly wake it to resume use, bypassing the
startup process.
To put the computer to sleep, do one of the following:
• Close the display lid.
• Press the Power button.
• Open the charms, and then select Settings Power Sleep.
To wake the computer, do one of the following:
• Press any key on the keyboard.
• Press the Power button.
Note: Wait until the power indicator light starts blinking (indicating that the computer is in sleep mode)
before you move your computer. Moving your computer while the hard disk is spinning can damage
the hard disk, causing loss of data.

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Chapter 2. Starting to use Windows 8.1
Shutting down the computer
If you are not going to use your computer for a long time, shut it down.
To shut down the computer, do one of the following:
• Open the charms, and then select Settings Power Shut down.
• Right-click the Start button in the lower-left corner and select Shut down or sign out
Shut down.
• Select Shut down in the upper-right corner of the Start screen.
Note: The operation depends on the BIOS setup. Please refer to the actual product.