Smart locks from brands like Kwikset can go wrong, but there's thankfully a way of resetting them back to factory settings and changing the code. Here's how.

Changing Codes For security purposes, keypad locks allow users to change the codes used to unlock them to new codes of their choosing.

A mash-up of a video doorbell and garage opener, the MyQ Smart Garage Video Keypad uses a 1080p video camera, a motion sensor and two-way audio.