Patent US 9,911,273

The disclosed embodiments disclose techniques for facilitating access to a target device. During operation, a target device presents a unique code to a user device that is located in proximity to the target device. The user device presents this unique code to a management server that is associated with the target device to gain access to the target device, with the management server linking the two devices. The target device receives notification that the user device has been linked and displays a set of received user account information on a display. Subsequently, the target device receives notification from the management server that the linked user device has applied a credit to the target device, and initiates an operation that is associated with consuming the credit.