The Blink Video Doorbell attaches to its back plate. When the back plate is attached to a flat surface, the doorbell can be connected and removed more easily.

Electric Shock Hazard: When your back plate is connected to powered wiring, the terminal posts have live current. If you connect the terminals by touching them with bare skin or a conductive object like a screwdriver, electric shock can result. This is true whether the wires are connected to the back plate or directly to the doorbell body.
Turn off power at the breaker before removing the doorbell from the back plate.

There are two main types of back plate for the doorbell. Use only two screws for each. 

1. For the doorbell with a weather resistant battery cover, its three-holed back plate only needs to hold the doorbell in place.

Battery cover and Doorbell		Three-hole Back plate

2. The other doorbell forms a weatherproof seal with the two-hole back plate.

Doorbell battery area		Two-hole Back plate

You may have received a replacement back plate that looks slightly different from the original. 

The image on the left shows an added a stiffener plate and a foam layer, on the right is the original back plate.

When mounting the back plate to a surface, use only two of the included all-purpose screws.

Learn more about installing a wedge or corner mount‍.

Please contact support with any questions or concerns.