Lenovo B40-45 User Guide - Lenovo B40-xx, B50-xx, B50-30 Touch Notebook - Page 34
Troubleshooting, Sound problems, Battery problems, Hard disk drive problem
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Chapter 4. Troubleshooting Sound problems No sound can be heard from the speakers even when the volume is turned up. • Make sure that: ‐ The mute function is off. ‐ The combo audio jack is not used. ‐ The speakers are selected as the playback device. Battery problems Your computer shuts down before the power and battery status indicator shows empty. -orYour computer operates after the power and battery status indicator shows empty. • Reset the battery gauge using Lenovo Energy Management. If the problem persists, replace with a new battery pack. 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. Hard disk drive problem The hard disk drive does not • In the Boot menu in the BIOS setup utility, make work. sure that the hard disk drive is included in the EFI list. 28