Combined de-icing device

A method for deicing a surface of an aerodynamic profile of an aircraft comprising a deicing device for deicing an aerodynamic profile, the deicing device comprising a lower surface, a plurality of cells formed of unitary cavities delimited by a lattice of partitions on said lower surface, and a barrier arranged on the lattice of partitions, wherein said lower surface comprises a first plurality of holes connecting said unitary cavities to a negative pressure generation device configured to generate negative pressure in said cavities simultaneously so as to press the barrier onto the lattice of partitions, and a second plurality of holes connecting said unitary cavities to a pressure pulse-based device configured to generate one or more pressure pulses in at least some of the selected unitary cavities, wherein the barrier is equipped with one or more resistive networks positioned under said barrier and in line with some of said cells in order to create localized electrothermal deicing zones in said device, the method including the steps of activating the negative pressure generation device and then supplying power to the one or more resistive networks so as to deice the zone(s) equipped with said networks, thus constituting ice breakage initiation zones in the ice deposited on said surface, then creating pressure pulses at the zones of said surface devoid of resistive networks in order to detach the ice accumulated on said profile.