A content receiver receives an update to a memory unit contained therein utilizing data stored in a data card inserted or incorporated into the content receiver. The content receiver dynamically generates a matrix code based on the updates received in the memory and on information uniquely identifying the content receiver. The matrix code is transmitted to a content display device for display, and a matrix code reader detects the displayed matrix code and transmits information contained within the matrix code to a content provider for updating a user's account associated with the updated content receiver. The content provider may transmit a message to the content receiver for display on the content display device indicating the update to the user's account. The content provider may transit a similar message to the matrix code reader.