Firmware Instructions - LH330 / LH340 Series Security DVR

Firmware Instructions - LH330 / LH340 Series Security DVR
Upgrading the System Firmware for EDGE Series DVR
Relevant Models: LH340, LH330
Firmware upgrades can provide improved functionality to your DVR. When firmware
upgrades become available, you can download them for free from
Prior to upgrading your system’s firmware, you must first format your USB flash drive (not
included) so it will function properly with the DVR.
ATTENTION: Formatting erases all data on the USB flash drive. This step cannot be undone.
To upgrade firmware:
1 Connect a USB flash drive (not included) to one of the USB ports on the DVR and format it
(see “Formatting the USB Drive” on page 43). Once formatting is complete, remove the USB
flash drive and connect it to a USB port on your computer.
NOTE: The system creates two folders on your USB drive: Picture and Movie.
In your web browser, visit and search for your DVR series.
Download the free firmware upgrade from the Downloads tab if one is available.
Extract the firmware file and copy it to the main directory of the USB flash drive—do not place
the file in either the Picture or Movie folder. Once the file transfer is complete, remove the
USB flash drive from your computer.
Firmware file
Connect the USB flash drive to the DVR.
to open the Main Menu. Click
to open the Backup Menu, then click
Firmware Update.
Click Firmware Update
The system checks the USB flash drive for a compatible firmware file and asks you to confirm
the upgrade. Click Yes to begin the firmware upgrade. DO NOT unplug the DVR or disconnect
the USB flash drive while the upgrade is installing. The system will prompt you when the
upgrade is complete.
When the upgrade is completed, remove the USB flash drive from your DVR and disconnect
the power adapter to power off your DVR. Reconnect the power adapter. The DVR is now
upgraded with the new firmware.
If you do not see Buttons in DVR Netviewer After Upgrading the
You need to reset the cache in your web browser. See below for instructions on how to reset
the cache in Internet Explorer 8. For other browsers, please see the support resources
provided by the publisher.
To reset the cache in Internet Explorer 8:
1 Open Internet Explorer.
Click on Tools > Internet Options.
Under Browsing History, click the Delete button.
What does the cache folder do?
Delete button
The cache folder contains files from web
pages—images, downloaded content—
from browsing the web. This allows a
web browser to quickly recall certain
elements of websites from the cache
folder, creating faster load times.
When the cache folder becomes too full,
web pages may not load correctly on
Internet Explorer.
Click the Delete all button.
NOTE: Clicking the Delete all button clears all
internet history, temp files, cookies, and
saved form data.
Click Yes on the prompt.
Click Close and then click OK to exit and save
your changes.
Restart Internet Explorer.
After you have cleared your internet cache,
reconnect to your DVR. You may have to
re-install ActiveX plug-ins upon initial
If you still have problems connecting to your
DVR after clearing your Internet Explorer
cache, try setting your Internet Explorer
security settings to "Medium-high." Or
alternatively, use Lorex Client 12 (provided on
the CD) to connect to your DVR. For installation
instructions, see “Step 3 of 4: Install the Client
Software on your PC or Mac” on page 53
Delete all
To set your security settings in Internet Explorer 8:
Open Internet Explorer.
Click Tools>Internet Options.
Click the Security tab.
Under Security levels for this zone, drag the slider and set the security level to Medium-high.
Security tab
Click OK to save your settings. Restart Internet Explorer, and reconnect to your DVR.
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