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How to connect C313W-2 and R20A-2 in a retrofit program?
I don't really understand how the devices are connected to each other.
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How can i enter X933H home screen when first boot it?
I have got a new intercom X933H, when I first open it, it always stays Installation Wizard, what can I do?
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Unlock failed during the call
I use the app to unlock my door phone. I am very sure that my call is normal. And I checked the account registration information is good. Then I verified many times that the door really couldn't be opened, so I went to the cloud platform t ...