Abstract: A pre-purchase serviceability check may be provided to confirm serviceability of a product by a user prior to the purchase of the product. A message may be received by a server and from a user device. The message may comprise information indicative of a user associated with the user device and a first identifier associated with a product. The server may determine, based on one or more of the information indicative of the user or the first identifier, that the product is usable by the user. The server may associate, for a first period of time, the first identifier with a second identifier associated with the product. The server may receive, from a point of sale device, a request comprising the second identifier. The server may determine a time associated with the request from the point of sale device is within the first period of time.

Abstract: Systems and methods for device appraisal are described. Some implementations include receiving a request from a mobile station to access a device appraisal service, retrieving one or more parameters associated with the mobile station, where the parameters include at least a mobile directory number (MDN) of the mobile station, automatically determining a model of the mobile station based on the MDN, displaying, at the mobile station, a web interface of the device appraisal service, providing for display in the web interface an identification of the model of the mobile station and user interface elements to receive condition information of the mobile station, determining a trade-in value of the mobile station based on the identified model and the condition information, and providing the trade-in value of the mobile station to the web interface for display at the mobile station.