N8209p no sound after latest firmware upgrade

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miguelst29 Post time 2021-6-22 21:41:31 |Show the author posts only

Hi,
I'm using the latest firmware and lost sound recording. Please help me.

My characteristics are the following:
Dev name       NVR
Dev model       N8209
HW version       1.1.0
SW version       2.8.9.13_21D22810
Reldatetime       08/07/2020 10:10

I don't remember the number of the previous firmware version.
I already try to Change the 'channel settings' to video, click apply, and then change the channel settings to AV(audio and video), click apply, and check again. And still not working the record sound.

Best Regards

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