Consumer devices with eUICCs (embedded Universal Integrated Circuit Cards) such as smartphones, tablets, and wearables are gaining more and more importance in everyday life. As these eUICCs are soldered, they cannot be removed from the device, and therefore, it is no longer possible to change network subscriptions by simply exchanging the SIM cards. It is very important that – as a part of the device development process – the proper functioning of the eUICC is tested alone and in combination with the mobile device. The consumer devices and the eUICCs must prove that they are compliant with the respective industry standards and that they behave as required by the network operators.