The LG Envy requires the user to enter a "lock code" to perform certain functions on the phone. For example, to perform a factory reset, the user must enter the four-digit lock code twice during the ...

I had a new alternator installed and now my car radio is locked and it's asking me to input a code. The service guy said this is because the battery had been disconnected and that the radio code ...

Creating temporary passwords and user profiles is one of the coolest features of the Yale Assure Lock 2. This allows you to send access codes to guests that will expire after a set amount of time.