SoftSIM FAQ
Fetching profiles, provisioning and technical questions
Which radio modules currently support SoftSIM?SoftSIM is currently available for testing on a few selected devices.
What are the minimal requirements for flash, heap and stack usage when using SoftSIM?The sample project takes up ~110 kB. The heap allocation of SoftSIM is fixed, while flash memory usage can be optimized.
Can I fetch SoftSIM profiles to an existing profiles.json file?No, it is not possible.
Can I fetch SoftSIM profiles more than once?No, the API is guaranteed to only return each profile once.
Is it possible to move SoftSIMs between devices?Yes, it is possible, BUT we strongly advise against doing so. This may lead to connectivity issues.
Which nRF modem firmware supports SoftSIM?All modem firmware versions above (and including) 1.3.4 are supported.
Can a SoftSIM be deprovisioned?No, this is not a feature available as a part of the nrf-softsim samples.
Can I use EdDSA methods to generate with Ed25519 algorithm?No, we only support RSA for key generation.
Is the length of a SoftSIM profile variable?Yes, the profile length is variable. It can be up to ~350 bytes long.
Why is SoftSIM taking longer to attach than physical SIM?This is normal and expected due to hardware-related implications.
Can I reduce nvs_storage partition in the SoftSIM file system?You can try to reduce it but it is generally not recommended to go below 32 KB.
Can I provision SoftSIM over-the-air onto my nRF91 module?No. The SoftSIM profile has to be flashed over UART.