Thanks lisey and soundy
Got a reply from the vendor support saying that AVC777 was one of the early product and designed not to have PC backup function nor software to upgrade.
I thought I just post the reply so anyone with the same problem will have the answer.
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Hello,
Thanks for your letter.
Sorry, the DVR is too old to support the function.
It don't designed to support the function in that time, so it can't be upgrade by hrdware or software.
Sorry for the inconvenirnces.
Regards, AVTECH
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