An intelligent door lock system is provided with firmware updates. A position sensing device is configured to be coupled to a drive shaft of a lock device, the position sensing device sensing position of the drive shaft to assist in locking and unlocking a lock of a lock device. An engine is provided with a memory, the engine being coupled to the positioning sensing device. A circuit coupled to the engine and an energy source coupled to the circuit. Firmware updates are provided to intelligent door lock system from server.