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User shares how they used the DJI 4G module and Vohive software to successfully activate a CMLink UK SIM card, solving the issue of RedPocket card reactivation requiring US location, and notes that the Vohive project repository has been deleted, with their own fork available.
swSIM is an open-source, software-only SIM card simulator that works without any hardware and can connect to phones via a PC/SC interface.