Methods, systems, and devices for determining system/device configuration and setting a mode of operation based on the determined configuration. An air vehicle processor: (a) receives a component information 14 set of at least one external component; (b) determine a mode of operation, by the processor having a current mode of operation setting, based on the received component information and at least one of: an initial mode of operation setting and the current mode of operation setting; (c) determines whether all of the one or more received component information sets match a configuration requirement; (d) transitions to a flight-ready status if the determination is a conjunctive match; and (e) transition to a reset status if the determination is not a conjunctive match.