Lenovo U410 Laptop User Guide - Page 48
Troubleshooting, Sound problems, Battery problems, A 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. -orYour computer operates after the battery status indicator shows empty. • Discharge and recharge the battery. The computer does not • The surge protector in the battery might be active. operate with a fully charged Turn off the computer for one minute to reset the battery. protector; then turn on the computer again. A hard disk drive problem The hard disk drive does not work. • In the Boot menu in BIOS setup utility, make sure that the hard disk drive is included in the UEFI correctly. 44