Methods and devices for performing a mobile network switch

A method for performing a switch from a first mobile network to a second mobile network by a mobile terminal comprising a secure element, wherein the method comprises the following steps:

• (a) attaching to the first mobile network using a first attachment message containing a first identification data element of a first subscription profile, the first subscription profile comprising a provisional subscription profile having a limited subset of capabilities on the first mobile network;
• and
• (b) attaching to the second mobile network by an attachment process including a second attachment message containing a second identification data element of a second subscription profile, the second subscription profile comprising a full subscription profile having one or more capabilities that are not available with the provisional subscription profile, wherein the second mobile network is configured to monitor at least parts of the attachment process, to determine the second identification data element contained therein and to forward an indication of this determination to a subscription management server in order to confirm the successful attachment of the secure element to the second mobile network.