An apparatus includes a first interface of an accessory of a wireless device. The first interface is configured to communicate with the wireless device using a wired communication technique. The apparatus includes a second interface of the accessory. The second interface is configured to communicate with the wireless device using a wireless communication technique. The apparatus also includes a data storage device of the accessory. The apparatus further includes a controller of the accessory. The controller is coupled to the first interface, to the second interface, and to the data storage device. The controller is configured to activate the first interface in response to a message received via the second interface.