Radiocommunication device comprising: - at least one memory containing a starter software module and a use software module, - at least one electronic processing unit linked to the memory, - at least one radio circuit controlled by the processing unit, said processing unit comprising means for: - executing said starter module in download mode, the starter module comprising means for: • setting up a simplified radio link of the radiocommunication device with a radiocommunication network by said starter module, said radio link being simplified in that it enables only a downloading service to the exclusion of another telephony service, said simplified radio link being permitted by the implementation of limited functions associated with the implementation of the following layers of the Bluetooth protocol: - the 'LC' layer (real time control of the radio link): limited to the simple multiplexing of data for the creation of connections, - the 'LM' layer (real time control of the radio link): limited to a negotiation restricted to the incoming connections, without audio, without authentication or encryption, - the 'L2CAP' layer: control, signalling and multiplexing limited to a single service, - the service layer: downloading service, • download an update of the use module via said simplified radio link, • store said update in the memory of the radiocommunication device, • receive an instruction for switching to normal operation mode of said starter module, • disconnect said simplified radio link at the end of said download, said processing unit further comprising means for executing said starter module in normal operation mode, the normal operation mode comprising means to load the use module updated to set up a normal radio link of the radiocommunication device with the radiocommunication network, said radio link being normal in that it enables at least one telephony service. - at least one memory containing a starter software module and a use software module, - at least one electronic processing unit linked to the memory, - at least one radio circuit controlled by the processing unit, said processing unit comprising means for: - executing said starter module in download mode, the starter module comprising means for: • setting up a simplified radio link of the radiocommunication device with a radiocommunication network by said starter module, said radio link being simplified in that it enables only a downloading service to the exclusion of another telephony service, said simplified radio link being permitted by the implementation of limited functions associated with the implementation of the following layers of the Bluetooth protocol: - the 'LC' layer (real time control of the radio link): limited to the simple multiplexing of data for the creation of connections, - the 'LM' layer (real time control of the radio link): limited to a negotiation restricted to the incoming connections, without audio, without authentication or encryption, - the 'L2CAP' layer: control, signalling and multiplexing limited to a single service, - the service layer: downloading service, • download an update of the use module via said simplified radio link, • store said update in the memory of the radiocommunication device, • receive an instruction for switching to normal operation mode of said starter module, • disconnect said simplified radio link at the end of said download, said processing unit further comprising means for executing said starter module in normal operation mode, the normal operation mode comprising means to load the use module updated to set up a normal radio link of the radiocommunication device with the radiocommunication network, said radio link being normal in that it enables at least one telephony service. • setting up a simplified radio link of the radiocommunication device with a radiocommunication network by said starter module, said radio link being simplified in that it enables only a downloading service to the exclusion of another telephony service, said simplified radio link being permitted by the implementation of limited functions associated with the implementation of the following layers of the Bluetooth protocol: - the 'LC' layer (real time control of the radio link): limited to the simple multiplexing of data for the creation of connections, - the 'LM' layer (real time control of the radio link): limited to a negotiation restricted to the incoming connections, without audio, without authentication or encryption, - the 'L2CAP' layer: control, signalling and multiplexing limited to a single service, - the service layer: downloading service, - the 'LC' layer (real time control of the radio link): limited to the simple multiplexing of data for the creation of connections, - the 'LM' layer (real time control of the radio link): limited to a negotiation restricted to the incoming connections, without audio, without authentication or encryption, - the 'L2CAP' layer: control, signalling and multiplexing limited to a single service, - the service layer: downloading service, • download an update of the use module via said simplified radio link, • store said update in the memory of the radiocommunication device, • receive an instruction for switching to normal operation mode of said starter module, • disconnect said simplified radio link at the end of said download, said processing unit further comprising means for executing said starter module in normal operation mode, the normal operation mode comprising means to load the use module updated to set up a normal radio link of the radiocommunication device with the radiocommunication network, said radio link being normal in that it enables at least one telephony service.