you can updaye your mobile firmware with the help of nokia software updater. download the nokia software updater from the web,its free so no probs, then connect your nokia mobile to your pc with USB cable and run the software updater it will scan and check your phone model and will show the firmware which will be avalable then press update buton and it will start updating your phones firmware. NOTE:- dont deattach your phone from your PC or dont stop the update or your phone will go dead. remove mem. card before update and move all your contacts to the sim memory. all the data stored in your phone memory will be erased.