If the firmware update fails or is interrupted for any reason, the next time the sensor boots up it will use the permanent backup firmware. To recover from an unsuccessful firmware update, simply disconnect and reconnect the sensor to the PC and try again. When the displayed firmware version starts with “UPDATE_ME” it means the sensor is running the backup firmware and will not be fully functional until a successful firmware update occurs. The message “Update Firmware” will be displayed as shown in Figure: Update Firmware.
