When a camera is first installed, its serial number (DSN) is the default camera name, and the thumbnail image is blank. If you want to change the name of your camera or add a thumbnail picture, follow the steps below.
1. From the Home screen, tap the camera name to change it, enter the new name, then tap OK to save.
2. Tap the thumbnail icon to take a new thumbnail image. The thumbnail remains until you refresh it with this button. The Blink Video Doorbell refreshes the thumbnail image each time the ringer button is pressed.
Learn more about using the Blink app.