Method for assistance with the remote configuration of an eUICC card and system for implementing such a method

A remotely configurable smart card, called an embedded universal integrated circuit card (eUICC) card, to be non-removably integrated into a terminal storing a provisioning profile comprising data used by said terminal to communicate with a provisioning network of a first wireless communication system to configure an operation profile on the eUICC card, the operational profile comprising data relating to a subscription of the terminal with an operator of an operational network of the first wireless communication system, wherein:

• the provisioning profile is incomplete, in that one or more missing data essential to establish a communication between the terminal and the provisioning network are not defined by default in the provisioning profile;
• the eUICC card comprises an assistance profile comprising applications and data allowing the terminal to access an assistance network of a second wireless communication system, the second wireless communication system being distinct from the first wireless communication system;
• and
• the eUICC card is configured to complete the provisioning profile with the missing data obtained by the terminal by establishing a prior communication with the assistance network.