In order to change to band plan 2, you need to turn off the device and then to turn it back on while holding the 2 and Function buttons. For further details, check the page 9 of the guide that you can find accessing the first link from Google. In order to load the software, insert in your computer the CD received when you purchased the product, open the installation package, launch the installer and follow the self-explained instructions. Once the process is complete, reboot the PC. If you don't have a CD for your device, you can download and install the software free of charge from BuTeL website. Just click the links next to your device, save the files to your PC, extract the packages using a utility from Software Informer database and install them.