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How to Activate the USB (For Service Only) of your LG LF20 LCD TV

By Edited Mar 11, 2016 1 13

Ever wanted to use your LG LCD TV's USB (for service only) to watch DivX format movies (mp4, mpeg, avi, vob, etc.), play music (mp3, wma, etc.) and view pictures (jpg, bnf, etc.) without ever using an external DVD/HDMI/Bluray. With this new feature, your LCD is now at par with the new model of Samsung (Series 6), LG (Scarlet), and Bravia with relatively lower cost of the unit. Please read below for detailed instruction:

Things You Will Need

1. You need an LG LCD TV(LF20, LH20, LH50, etc.) and an active USB thumbdrive loaded with multimedia (pics, movies, mp3, etc.)

2. Insert the USB thumbdrive at the back of the LCD unit, make sure not to remove it during the entire process else this could cause your USB drive to be corrupted.

3. Go to the service menu of the LCD TV (not the typical function menu) by pressing and holding the menu button for 5 secs waiting for the menu display to disappear. Afterwhich, press and hold the menu button at the side of the LCD simultaneously.
Wait for 5 - 10 secs until the service menu code would be prompted. Enter 0-0-0-0 (zero-zero-zero-zero) in the code panel and the display will show the service menu.

4. In the service menu, you will see various options, goto tool options 2 and click enter. Afterwhich, goto the USB and change the number from 0 (zero)/OFF to 1(one)/ON.

5. After changing, press return or menu to exit the service menu.

6. Press the menu button to go to the function menu and you will see that the input tab is already replaced by the USB tab.

7. Open the USB tab and you will able to play your favorite movie, pic, music.

8. Enjoy.


Tips & Warnings



Jan 4, 2010 10:05pm
Do you know how to do this on a Toshiba 19AV600U tv? the service port is on the side of the unit instead of the back, and the way to get to the service menu is different.. but i dont know how to access it..
Jan 24, 2010 3:29am
Thanks a lot. Now I can use the usb port at my LCD. haha.
Feb 2, 2010 9:37am
gecrisostomo, do you know for sure your method will work on my lcd tv LG 32LH25R (which I just bought 2 days ago)?

Feb 2, 2010 9:44am
tjleong, what is the exact make and model of your lcd tv?

Do you know if that activation method will work on my lcd tv?

Feb 27, 2010 5:28am
Will it work on LG 32LH3000?
Thanks in advance,
Mar 3, 2010 3:26am
Nenad, no idea if it will work on your model. Tried that method on mine but failed. I cannot get to see which version it is with now.

Hope geeks around the globe would be able to hack into it to get it activated.
Mar 3, 2010 3:28am
tjleong, could you please tell us which model and version you have there?
May 10, 2010 10:41am
I bought a LG 26LG4000 TV at the weekend and discovered that the USB at the back was service only - would the hack above work on this model or am I at risk of bricking my TV? I could always take it back I suppose!
Jun 12, 2010 11:09am
Is this work at LG M2394D ?
Jun 30, 2010 4:50am
i've got a LG 32LH2000, and step #3 doesn't work.. the service code never gets prompted.. the only thing that happens is that the menu dissapear.. and it wont go any further than that. Any ideas on how to make it work ?
Oct 25, 2010 4:18am
I bought a plasma TV LG 60PK250; the above procedure to activate the USB port (service only) could be valid for this model also ?


Mar 21, 2012 11:37pm
I can't get to the service password prompt. My LCD is an LG 42LH35FD with software version V.03.18.00.
I have tried holding remote menu and tv menu buttons down at same time for 10 seconds as well as both "ok" buttons for same time period but still nothing. I neeeeeddd help please.
May 30, 2013 8:03am
Thank you soooo much, dude. Really! On this side of the pond, the asshats who sell LG have no clue what they're talking about. When I called them (about 4 years ago) to ask about using the USB port, they told me it was there "for aesthetic purposes" and couldn't be used. I didn't want to spend any money "fixing" the problem, so I forgot about it. When my DVD player broke, I started trolling websites that could possibly help me. Thne I found you. THANKS
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