OSNMA cryptographic keys are not installed with the firmware. Users will be required to register on the GSC website and enroll in the OSNMA service to acquire cryptographic keys.
At the time this article is written (2024/12/12), the Initial Service Declaration has not been made yet. Users can only acquire the OSNMA key by applying to the public observation test
For more information on enabling the OSNMA feature, please refer to the u-blox Integration Manual: