here are the steps
1 - prepare a empty USB flash drive.
2 - create a folder in the flash drive called "LG_DTV" (yes with the underscroll too)
3 - visit: http://us.lgservice.com/vchip_html/V-chip_upgrade_for_your_set.html
4 - right click on "42LB5DF-UC"(or whatever your model is) and click on "save target as" and save the file under your flash drive in the folder "LG_DTV".
5 - safely remove your flash drive from your pc.
6 - turn the television set off.
7 - insert the flash drive in the side of the TV
8 - turn the television set back on.
9 - you should see a menu within 20 seconds giving you two options to start or cancel.
10 - if you don’t have the latest firmware hit start.
11 - then follow the instructions on the screen. mine just told me to wait till the TV restarts and remove the flash drive.
- “Expert Mode” Setting http://www.avsforum.com/avs-vb/showthread.php?p=11861387#post11861387
There is another menu you can access. Hold the Menu button down until the password screen appears. Then punch in 8741 as the password. Now you have access to "Expert mode". This will give you two "Expert Mode" settings (Expert Mode 1 and Expert Mode 2) that will now show up in your picture settings. You can select the input that you want to apply these settings to.
- Service Setting for checking firmware version http://www.avsforum.com/avs-vb/showthread.php?p=10442927#post10442927
1) Hold down the Menu button on the remote till a password screen shows
2) Keep holding the button, now press and hold the menu button on the TV and the service menu will eventually display.
This menu seems to change from a full version to an abbreviated version every other time you do the above procedure.
Once in, there are many options and most could lead to a brick for a TV.
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