I didn't try to start it up with the USB plugged in, yet. I suppose putting the wrong firmware on your official website is one way to drive new TV sales. Yeah it was dumb to upgrade the firmware (something I've done on all sorts of **** before and never had a problem) but I thought I was relatively safe if I triple checked the model number and region and just followed the included instructions. Is there some sort of patch cable and command that would allow me to fix this?Ĭlick to expand.Thanks! I tried searching but only found what looked like scam sites. So am I screwed? Do I need to replace a board? This thing does have a serial port. Went to 100%, said it was restarting and then never turned on again. ![]() Downloaded this file: GP3_ATSC_US_RevNo2836_V05.00.01_flash_V2_SECURED.epk and did the whole USB update thing. I saw that I was on v4.0 and that the website had v5.0. I carefully checked with the "Product Info" menu and made sure I had the right model number. ![]() So the only thing I could think of that might fix this was to go to LG.com and update the firmware. ![]() Long version: I finally decided to sit down and fix my Harmony remote setup and I thought I had figured out the issue: what the IR commands in Harmony say aren't actually the commands that the TV performs: "HDMI2" command actually just cycles the input rather than switch to "HDMI2." site.) It seemed to install fine to 100% but then when tried to restart, it never turned on again. It's exactly the right model number on the U.S. Short version: Flashed new firmware on my LG42LK450-UH from the official LG website.
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