There was already a discussion about cloning the card…
https://forum.ewelink.cc/t/clone-ihost-sd-card/
But…
In short, it is unlikely that it will even be possible…
They did it consciously, everything is closed and limited on purpose. No backup copy of the CUBE configuration, no possibility of cloning the card… It is clearly visible that the goal is to limit and close the ecosystem as much as possible so that the company has total control over the product and the customer should not get involved in these issues.