Need Firmware update for LG DVD-Player model: DN191H

Is there a firmware update for my LG DVD-Player model: DN191H
If so would someone please advise me on where I could download the update?
How would one update this device since all it has are memory slots?

Features:

Super Slim Design
Stands only 1.37" high for convenient addition to existing home theater configurations.

14-in-2 Multi-Memory Card Slot
Create slide shows from your digital camera and enjoy music from your MP3 library. Compatible with most major memory card formats.

1080i Upconversion with HDMI Output
A special video processing circuit upconverts all signals to 1080i (more than a thousand lines of horizontal resolution) via HDMI output for use with compatible televisions.

DivX and MPEG4 Compatible
Enjoy high-quality movies that you’ve recorded from your PC.

Other Features:

Multi Format Disc Playback: DVD Video/DVD±R/DVD±RW/ AM/Audio CD/CD-R/CD-RW/ WMA/JPEG
DivX®/MPEG4 Playback
14-in-2 Memory Card Slot
Hi-Resolution JPEG Photo Playback Home Theater Configurations
Progressive Scan Output
1080i Upconversion via HDMI Output
Cabinet Color Silver/Black
Language English/Spanish/French
Graphic User interface Playback Icons
Disc Capacity 1
Digital/Analog Converter 108Mhz/14bit
Digital/Analog Conversion 192Hz/24bit
Signal/Noise Ratio 100db
Repeat play A/B, Title, Track/Chapter, All
Multi Memory Card Slot 14-in-2
Digital Audio Out / Optical 1
Digital Audio Out / Coaxial 1
S-Video Out 1
Component Video Out (Progressive Scan) 1
Composite Video & Audio L/R Out 1
HDMI Out 1
Width x Height x Depth (with Packaging) 20" x 12.6" x 4.3