FIELD: radio communications engineering. SUBSTANCE: method includes detection of data signal in first port indicating that peripheral computer communicates with portable radio communication device through first and second data ports and battery power saving in portable radio communication device by transferring control over mentioned device from internal processor unit to peripheral computer in response to operation, sending of signal to peripheral computer to request transfer of control from internal processor unit to peripheral computer, reception of response signal from peripheral computer that includes list of functional elements controlled by peripheral computer software, and transfer of functional-element control, as well as compilation of list of functional elements controlled by peripheral computer software. EFFECT: provision for additional facilities dispensing with physical replacement of software saving elements. 5 cl, 4 dwg
