Troubleshooting Sound problems, Battery problems

Chapter 6. Troubleshooting

Sound problems

No sound can be heard from the speaker even when the volume is turned up.

•Make sure that:

-The Mute function is off.

-The combo audio jack is not used.

-The speaker is selected as the playback device.

Battery problems

Your computer shuts down before the battery status indicator shows empty. -or-

Your computer operates after the battery status indi- cator shows empty.

The computer does not operate with a fully charged battery.

•Discharge and recharge the battery.

•The surge protector in the battery might be active. Turn off the computer for one minute to reset the protector; then turn on the computer again.

A hard disk drive problem

The hard disk drive does	• In the Boot menu in BIOS setup utility, make sure
not work.	that the hard disk drive is included in the UEFI
	correctly.

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Lenovo U410, U310 manual Troubleshooting Sound problems, Battery problems, A hard disk drive problem

Contents

User Guide Lenovo IdeaPad U310/U410 Third Edition August Copyright Lenovo Regulatory Notice Chapter 5. Lenovo OneKey Recovery system ContentsChapter 1. Getting to know your computer Chapter 4. Connecting to the InternetPage „ U310 Chapter 1. Getting to know your computerTop view a b c d g e f a b c dg e f „ U410 e System status indicators b Computer display c Wireless module antennas d Power buttona Integrated camera c d e Left-side viewb Fan louvers c RJ-45 port g Built-in microphonef Combo audio Connects to headphones or headsets. The combo audio a Built-in microphone b Combo audio jack Right-side viewe c f g d c USB port f HDMI port g RJ-45 portThis port connects the computer to an Ethernet network U310 U410Front view Bottom view Allow air to enter the computer for cooling a Louvers Connecting the computer to an electrical outlet „ Conncting to the powerChapter 2. Learning the basics „ Reading the manuals „ Charging the battery „ Checking battery status„ Battery Protection Chapter 2. Learning the basics Using the touchpad a Touchpad b Left-click area c Right-click areaNote You can enable/disable the touchpad by pressing d Using the keyboard „ Function key combinationsFn + End „ Hotkeys Using hotkeys Setting hotkey mode Connecting external devices „ Using memory cards not suppliedInserting a memory card Removing a memory card „ Connecting USB devices Enabling Bluetooth communications on your computer „ Connecting Bluetooth enabled device on select models Special keys and buttons „ Novo button a System status indicators a Power status indicator b Battery status indicatorThese indicators inform you of the computer status Indicator SymbolMeaning status Securing your computer „ Using passwords Chapter 3. Starting to use Windows Configuring the operating system for the first timeStart screen Desktop Search charm Chapter 3. Starting to use WindowsThe charms Share charm Settings charmStart charm Devices charm Putting the computer to sleep or shutting it down „ Putting your computer to sleep „ Shutting down the computer 2 Select Power → Shut down Help and support Wireless network technology connect without wiring Chapter 4. Connecting to the Internet„ Hardware connection Wired connection Chapter 4. Connecting to the Internet „ Software configuration Wi-Fi WiMAX Wireless connection Enabling wireless connection Connecting to a wireless network„ Connecting to wireless LAN 2 Click System Backup Chapter 5. Lenovo OneKey Recovery system„ Backing up the system partition „ Restoring „ Drivers and preinstalled software Chapter 6. TroubleshootingFrequently asked questions What safety precautions should I follow when using my computer? „ BIOS setup utility „ Lenovo OneKey Recovery systemChapter 6. Troubleshooting Where are the recovery discs? When do I need to change the boot mode? „ Getting helpHow can I contact the customer support center? Display problems Troubleshooting Sleep problems Chapter 6. Troubleshooting BIOS password problems Display panel problems Chapter 6. Troubleshooting Sound problems Battery problemsA hard disk drive problem Chapter 6. Troubleshooting Other problems Trademarks Page Lenovo China V3.0en-US

Lenovo U410, U310 Troubleshooting Sound problems, Battery problems, A hard disk drive problem

Models: U410 U310

Chapter 6. Troubleshooting

Battery problems

A hard disk drive problem