Do you think it is a good idea to directly test with a different power board? Some people on another forums telled me that it can be the OLED screen who have defaults and can instantly kill the power board...

I don't know how to use a multimeter and I don't have a manual where its show the right V or A to have in the circuit, how can I manage to know it...

Are you sure It's kind of a software issue? I'm kind of sure that the problem come from the power supply, and because of it the tv wont turn on (not even the led).
Look at the pictures I just sent, maybe its more precise with them !
Thank you !...

Great news, I managed to open the TV, and I noticed this: the component looks completely fried, the cables are in bad shape, and there’s some liquid leaking from the component; it doesn’t look good at all. I’m attaching photos of the component in question and the entire power supply board.

Could this be the only issue? If so, what should I do?

I tried searching for the specific component but couldn’t find it, and I don’t know how to solder. Plus, could other parts have been damaged along with it? What’s your opinion?

Alternatively,...

Hello, my LG OLED55C8PLA TV stopped working, and here's what happened:
Around noon, it stopped turning on, meaning the screen stayed off, I heard a ticking sound when I tried to power it on, and the red LED light blinked 3 times. Afterward, nothing would happen for about 1 minute, and then the same cycle would repeat. A few days later, there was no more red LED blinking, and whether I tried turning it on with the remote or the power button on the back, it wouldn’t respond. I’ve tried some "quick fixes" I found online, like unplugging the TV and pressing the power button for...

Hello, I'm new to this forum, I'm here to fix my LG Tv, I hope I can get help around there !
I'm a French IT Student, and my dad OLED 4K Tv is dead, I hope I can fix it to have it