To initialize the scanner: turn it on, when the main screen comes up, press 0, then press 1, then press ENTER. After the last entry, it will take about 5 seconds to re-initialize. Do not turn the scanner off. Once it goes to the screen with the 0-9 scanning banks, you can shut it off and reprogram the scanner with what you want. No you will not lose any of the firmware updates. If you haven't done so yet, download the thirty day free trial of Win96 and download the scanner to the software. Just in case you want those frequencies. It will also give you a good idea of how the scanner is setup.