Audio output stays muted / orange LED stuck on

[Matsovan]

After a recent Windows update, there is no longer any audio output from the device.

Within windows, i can mute/unmute the audio, however the physical keyboard button shows muted audio (LED is on), and audio playback doesn't work regardless of what windows displays. I have managed to get audio output through bluetooth, however the internal speakers and audio jack outputs do not function. When connected to external speakers(audio jack) i can hear crackling noises during system startup (As if the output was muting/unmuting multiple times).

The system diagnostic tools detect no problems with audio output, i have only managed to get this error code on HP Startup Manager when checking for hardware issues:

Audio[P]   Failed   PU748X-99L9RH9-MFPW3F-21C703   Audio

To resolve this problem i have tried the following(without any success):

-system rollback to pre-update state / rolling back audio drivers

- updating all drivers manually / through HP utillities

-updating the BIOS

-a clean install of windows + updating drivers / BIOS

- trying out other fixes mentioned on this forum

I would greatly appreciate help in further troubleshooting of this issue

[asmita6658]

Hi @Matsovan

Welcome to the HP Support Community. 

Appreciate you trying the steps. This is a hardware issue, the failure-ID is related to "Audio Channel Failure".  I'd suggest you Contact HP in your region regarding the service options for your computer.

Have a great day! 

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