Please be very careful when uploading. Upload locally over a cable not wirelessly. Do not reboot, down power or select any menu option whilst upgrading. You will need to factory reset each radio before and after the firmware upload then reboot if you are upgrading from a very old version. Uploading new firmware may erase all settings and default the radio to its factory state. If the firmware is interrupted during the upload the radio may require returning to SilverNet for re-flashing the firmware as it may corrupt.