A method for installation of a secure-element-related service application in a secure element of a user equipment (UE) associated with a subscriber of a telecommunications network includes: transmitting an initial request, transmitting a request to install, receiving token information, transmitting the token information, transmitting an access and/or installation request together with the token information, and establishing a communication link. The secure-element-related service application, when installed within the secure element, is configured to allow the first server entity, together with a UE-related application installed on the user equipment, to provide a service to the subscriber of the telecommunications network.