Oh, ok, now I understand your question Well, at the moment the Jolla C FW seems to buggy in terms of LTE support ( https://together.jolla.com/question/...-with-jolla-c/ ). From an optimistic point of view that could help: Maybe an updated Jolla C firmware will be released which can be applied to both, the Jolla C and the Aqua Fish (I must admit: I don't know whether this is realistic and/or technically possible)