Chosen Solution
LG 50UH5530 My tv will only flash the lg symbol and shut off. Help! Update (08/07/2019) We’ve unplugged everything, waited overnight and tried starting it and can only get lg symbol to flash and it powers back off. Put in a new power board and same results. Tried holding the power button for 30 seconds and turning it on but same
tammyradermacher could be an issue with the power board as well as the backlight. We need to know what model this is and what you have tried. First off. Unplug all video inputs and other devices attached to your TV. Then unplug the TV. Hold the power button down for 30-0 sec. Then plug the TV back in with one video source only. Preferably a local device like a DVD, BR or Game Console. Then turn it on. Lett us know what you got.