OLED65C7P LED is on, no picture

My oled65c7p TV turned off by itself and won’t turn back on. I replaced all the internal boards and the front LED is on, but still no picture. You can hear a faint on click then a few seconds the same click like it’s turning off. I don’t know what else to do other that throw this TV away and buy a new one. Next time getting store warranty!

Thanks in advance,

Dave