Hey, Whenever the next release is out, it will have an API break, as per: http://cgit.freedesktop.org/libmbim/libmbim/commit/?id=835602a65f8e9656f2b642b5ba073d9f0ad12e95 The MBIM_REGISTRATION_FLAG_PACKET_SERVICE_AUTOMATIC_ATTACH flag is at bit 2 not bit 3. Cheers, -- Aleksander https://aleksander.es