Asus R551LA User's Manual for English Edition - Page 110
Unlock the I/O Interface Security in your system's BIOS. For, from my Notebook PC's audio speakers?
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4. My battery LED indicator does not light up. What's wrong? • Check whether the power adapter or battery pack is attached correctly. You may also disconnect the power adapter or battery pack, wait for a minute, then reconnect them again to the power outlet and Notebook PC. • If the problem still exists, contact your local ASUS service center for assistance. 5. Why is my touchpad not working? • Press to enable your touchpad. • Check if ASUS Smart Gesture has been set to disable the touchpad when connecting an external pointing device. 6. When I play audio and video files, why can't I hear any sound from my Notebook PC's audio speakers? You can try doing any of the following suggestions: • Press to turn up the speaker volume. • Check if your speakers were set to mute. • Check if a headphone jack is connected to your Notebook PC and remove it. • Unlock the I/O Interface Security in your system's BIOS. For more details, refer to the I/O Interface Security section in this manual. 7. What should I do if my Notebook PC's power adapter gets lost or my battery stops working? Contact your local ASUS service center for assistance. 110 Notebook PC E-Manual