This document pertains to HP Notebook PCs with Windows Vista.
HP Notebook PCs - Mute Button on Capacitive Strip Does Not Work
The capacitive touch mute button on some HP notebook PCs may become stuck into the on (muted) position and prevent the playback of sound. The battery charge indicator may also constantly display 3% with no change.
Download and install the latest BIOS
To resolve this issue, download and install the latest BIOS for your particular computer model. You may do so by going to the HP Drivers and Downloads page.
warning:Do not interrupt the BIOS installation process. Interrupting the process, or attempting to install the incorrect BIOS will cause damage to the BIOS and will require that the PC be repaired at an HP authorized facility.