Appendix B: Configuration or Firmware Upgrade with a USB Drive448 The EMX utters a short beep when writing the diagnostic data to theUSB drive.factory_reset Supported as of release 3.0.0. If this option is set to true, the EMX will be reset to factory defaults. If the device configuration will be updated at the same time, thefactory reset will be executed before updating the deviceconfiguration.bulk_config_restore Supported as of release 3.1.0. Specify the name of the bulk configuration file used to configure orrestore the EMX.Note: See Saving the EMX Configuration (on page 288) forinstructions on generating a bulk configuration file. Additional configuration keys set via the config.txt file will be appliedafter performing the bulk restore operation. This option CANNOT be used with the option "full_config_restore." If a firmware upgrade will be performed at the same time, you mustgenerate the bulk configuration file based on the NEW firmwareversion instead of the current firmware version.full_config_restore Supported as of release 3.1.0. Specify the name of the full configuration backup file used to restorethe EMX.Note: See Backup and Restore of EMX Device Settings (on page290) for instructions on generating the full configuration backup file. Additional configuration keys set via the config.txt file will be appliedafter performing the configuration restore operation. This option CANNOT be used with the option "bulk_config_restore." If a firmware upgrade will be performed at the same time, you mustgenerate the full configuration backup file based on the NEWfirmware version instead of the current firmware version.