You’d be surprised at how often a small piece of dirt or dust can look like a dead pixel, so clean the screen before assuming you’re dealing with a big problem. You may also want to check out if the problem is, indeed, with the screen. If it is a dead pixel, then the TV should be sent for repairs, as, unfortunately, the issue is a difficult one to fix. The difference is that stuck pixels usually happen because of a problem with a transistor they often have different colours and are usually just simply out of place. Before jumping to the worst conclusion, however, you might want to make sure that it’s indeed a dead pixel, not a stuck one. Whether these dots are black or green, they’re incredibly inconvenient. Dead Pixelsįew things are as off-putting as a dead pixel in the middle of your screen. If you start suspecting something’s not right and begin noticing imperfections on your cheap smart TVs or cheap 4K TVs, your TV might be in need of repairs – these little defects can quickly become distracting and might even prevent you from enjoying your favourite content. If the screen is broken or the TV doesn’t turn on no matter what you do (or if the sound stopped working completely), it’s time to check out a new set.īut, before it comes to that, let’s talk about TLC (Television Love & Care). Of course, sometimes, the TV is beyond repair and you should replace it instead. Generally, you’ll have a few warning signs that things are not exactly right. At least now the TV works.If your TV isn’t working properly, there are still a few things to consider before you give up on it. I had an HD antenna with a booster that used the USB port for power and I have a feeling that fried my board but who knows. If you tried all the other fixes suggested and none of them work, before you curb the TV, I would try replacing the main board. There are some videos online to walkthrough the process but it is pretty simple. So I bought a new main board for like $28, only took about 15 minutes to install it. I was able to connect to wifi in the reset menu while the button was held down so that board seemed to be working fine too. The screen looked fine during the red logo loop and also while the reset button was held down so in my opinion that board was fine, the power stayed on the entire time the reset button was pressed so it seemed to me the power board was fine. So a bad USB port along with a reset button that only responded when held down the entire time led me to believe this was an issue with the hardware, specifically the main board. But the TV would not recognize the thumbdrive so it seemed like the USB port was bad. I thought maybe it was a firmware issue and loaded an update on a USB thumbdrive and tried to use that during the reset process. I tried to keep the reset button pressed down the entire time while I went through the reset process but it would come to a point where the tv needed to reboot and it would then act like I let go of the button and go back to the red logo loop. As soon as I let the button go it would go back to the red logo loop. But I noticed that if I held the reset button down for about 40 seconds it would go to the reset menu. The reset button on the back wouldn't work either. Every trick to fix it I read online didn't work. Unplugging made no difference, 1 hr, overnight, still the same red logo loop. It would stay stuck on this loop until I pulled the plug. Then after 10 seconds or so it would turn back on by itself, spend 15 seconds stuck on the red logo screen and turn back off. Was working fine one minute then shut off a show to put my son to bed, after that the tv would turn on, show the red TCL logo screen then turn back off after about 15 seconds. My model 50S425 that is a bit over 1 year old, started doing the same thing.
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