Long Short
  1    1      System in mode waiting for host down loader program to talk to it.
  1    2      Application CRC failed. Waiting for host down loader program to start.
  1    3      In active boot loader reprogramming mode - host downloader is talking.
  2    1      EEPROM configuration database is corrupt.
  2    2      USB port Enumeration Failure
  2    3      Unit temperature sensor reporting over temperature for safe operation.
  3    1      Magnetic hall sensor failed (reporting A/D voltage outside normal range).
  3    2      ..you pick your next notification.