Abstract: An electronic device comprising: a device housing; an electronic card assembly disposed in said device housing and comprising: a card housing configured with a housing opening; a card tray having a card receiving space for accommodating an electronic card, said card tray being slidably displaceable between a closed position in which it is at least partially disposed within the card housing, and an open position in which it projects from the card housing to an extent greater than in said closed position; a locking mechanism configured between a locked state in which said card tray is arrested in its closed position and an unlocked state in which the card tray is free to be displaced; a driving mechanism configured for displacing the card tray at least from its closed position into its open position; and a control unit in communication with the locking mechanism and with the driving mechanism, said control unit configured for outputting an unlocking signal to the locking mechanism, thereby changing the state of