A mobile base station device, comprising a housing in which is housed a module which stores a communication control program, further comprising: • opening detection means for detection the opening of said housing; information transmission means for transmitting user-specific information for identifying a user of the device to a prescribed server when said housing is opened; and opening detection information is received from said opening detection means; • use-disabling means for placing said communication control program in a use-disabled state and for executing deletion of said communication control program when said user-specific information is transmitted to said prescribed server by said information transmission means; • characterized in that the base station device further comprises means for connecting a dedicated device used in repair services of the device; and • transmission means for transmitting user specific information to a connected dedicated device; and • switching request reception means for receiving mode switching request information from the dedicated device when the dedicated device has completed user authentication based on the user specific information whereby the switching request reception means are further adapted to request switching of said program use-disabling means to a maintenance mode, upon receiving said mode switching request information, and whereby in this maintenance mode, even when opening of said housing is detected by said opening detection means, said program user-disabling means does not execute deletion of said communication control program. • opening detection means for detection the opening of said housing; information transmission means for transmitting user-specific information for identifying a user of the device to a prescribed server when said housing is opened; and opening detection information is received from said opening detection means; • use-disabling means for placing said communication control program in a use-disabled state and for executing deletion of said communication control program when said user-specific information is transmitted to said prescribed server by said information transmission means; • use-disabling means for placing said communication control program in a use-disabled state and for executing deletion of said communication control program when said user-specific information is transmitted to said prescribed server by said information transmission means; • characterized in that the base station device further comprises means for connecting a dedicated device used in repair services of the device; and • transmission means for transmitting user specific information to a connected dedicated device; and • switching request reception means for receiving mode switching request information from the dedicated device when the dedicated device has completed user authentication based on the user specific information whereby the switching request reception means are further adapted to request switching of said program use-disabling means to a maintenance mode, upon receiving said mode switching request information, and whereby in this maintenance mode, even when opening of said housing is detected by said opening detection means, said program user-disabling means does not execute deletion of said communication control program.