A control method for an electronic device such as a digital camera, having a mechanical driving member comprising a collapsible barrel, a lens barrier and the like, which performs mechanical operations, and a system controller which controls the overall device including the mechanical driving member is provided. In accordance with turning on of power supply to the system controller, the mechanical driving member is driven until the device enters a main-operation stand-by status, in parallel to start of an OS by the system controller.

 
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