V20 WiFi Video Doorbell 1080p HD Video Motion Activated Alerts 2 Way Audio Night Vision 32GB Pre-Installed Door Chime - European Version

SKU: GW60.0009EU

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I don’t think it’s possible to have the chime ring when motion is detected. I never tried that but it would be very annoying if it did. 
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Touch the top right figure in your APP, then touch "Storage Settings" at the bottom. If it's full or close, you can "Format". No warnings;. You just have to check it occasionally. 
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You can flip the angle part around to the angle your want. 
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Inside the doorbell, not inside the house. You have to pop the “security screw” to access. I believe it’s a tiny starbit. There is an l-shaped driver included in the kit to remove/tighten. 
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Did you attach the wiring the exact same way that your old doorbell was? I didn’t use the chime attachment at all. Did you program the doorbell to mechanical on your app 
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Yes it works great. I can see the mailman when he brings a package and I am not at home. It notifies me and takes a picture. 
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on the bottom you will find a USB port, next to that is a pinhole (reset button). using the supplied tool, push the button in the pinhole