Tody i teach you how to Uninstalling Current Driver
*.Right click My Computer and select Properties
*.Select Hardware
*.Click Device Manager
*.Expand Modem tree. You will find your phone modem there. (Make sure your phone is connected during this operation)
*.Right Click and select uninstall
*.Disconnect phone and reboot the systemYour Modem will get uninstalled. Then reinstall by following procedures
Reinstalling Modem
*.Connect your phone and click Nokia Mode(Or pc suite mode)
*.Your modem drivers will get automatically installedOtherwise
*.Open device manager as explained above
*.Click actions on file menu and click 'Scan for hardware changes