Lenovo 59RF0035, S400U Troubleshooting Sound problems, Battery problems, Hard disk drive problem

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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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Contents Lenovo IdeaPad S300/S400/S400u/S405 Regulatory Notice Second Edition August Copyright Lenovo Contents Page Top view Getting to know your computerTouchpad Getting to know your computer IntegratedFan louvers Left-side viewRJ-45 port Hdmi portUSB 2.0 port Right-side viewJack Front view Bottom view Learning the basics „ Connecting to the power„ Reading the manuals „ Turning on the computer„ Removing the battery pack „ Checking battery status„ Charging the battery „ Handling the battery Right-click area Using the touchpadLeft-click area 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 devices on select modelsSpecial keys and buttons „ Novo button aPower status indicator Battery status indicator System status indicatorsLearning the basics Symbol Indicator Meaning Status Securing your computer „ Using VeriFaceStart screen Desktop Configuring the operating system for the first timeStarting to use Windows Charms Search charmStarting to use Windows Share charm Settings charmStart charm Devices charm„ Putting your computer to sleep „ Shutting down the computer Help and support „ Hardware connection Cable Connecting to the InternetWired connection Connecting to the Internet „ Software configurationWi-Fi WiMAX Wireless connectionConnecting to a wireless network „ Connecting to wireless LANEnabling wireless connection „ Restoring Lenovo OneKey Recovery system„ Backing up the system partition „ Drivers and preinstalled software TroubleshootingFrequently asked questions „ Finding informationTroubleshooting „ Lenovo OneKey Recovery system„ Bios setup utility „ Getting help When do I need to change the boot mode?Display problems TroubleshootingSleep problems Troubleshooting Bios password problemsWork Display panel problemsHard disk drive problem Troubleshooting Sound problemsBattery problems Respond Troubleshooting Other problemsTrademarks Page V2.0en-US