6.4 UPGRADE
This window will display firmware updates that are loaded on a USB flash drive in the front USB port.
PICTURE 6-11
Firmware upgrades are available from
The firmware download should be loaded onto an empty USB flash drive from the downloading computer and then transferred to the DVR using a USB port.
IMPORTANT! Please make note of your settings before updating the firmware on a QT426 or QT446 as the upgrade process will restore factory defaults. Other models will retain their user settings.
NOTE! While a Macintosh computer can read and write to a drive in the FAT32 format, it cannot reformat a USB flash drive to that standard. We suggest that you use a PC to reformat your USB flash drive to FAT32 and it is recommended that you download firmware updates on a PC. Beginning with version 3.1.71, you can use the Upgrade feature in the Remote Monitoring
software (see Section 2.5 of the Remote Monitoring Guide) to upgrade without a USB flash drive.
WARNING! Updating the firmware incorrectly or using the wrong update can permanently damage the chipset on the DVR and render it unusable.
Updates are written to either resolve issues or add features to the DVR. If you 
are not experiencing performance issues or do not need a feature added by the update, we recommend not running the update.
6.5 LOGOFF
Logging out of the DVR is recommended when there are multiple users or when physical access to the DVR is not restricted. Clicking on the Logoff icon will bring up a window asking for confirmation.
After logging off, a user can log back in by clicking on the Menu icon and entering their user name and password.
6.6 SHUT DOWN
This is a “soft power down” of the DVR. It shuts down the firmware and hard drive, but does not power down the DVR itself.
WARNING! It is vital that the DVR be instructed to shut down using the Shut Down menu option prior to unplugging the device in order to avoid damaging the firmware or hard drive itself.
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