Upgrading to a smart lock is a DIY project -- if you know what you're doing. These steps will explain what instruction manuals leave out.

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Never get locked out again with a smart lock you can control from your phone, with your face, or with a fingerprint. Never get locked out again with a smart lock you can control from your phone, with ...