Have TV Questions? Ask a TV Technician
Hello, The blinking light is an error code signifying a fault. While it's highly possible you have a defective set and would want to exchange it, it's also possible that the TV simply needs a hard reboot.
Please unplug the TV from power, then press and hold the power button on the set itself (not the remote) for 20 full seconds and release. Wait a full minute then plug the TV back into power and press power once. Let me know exactly what happens please.
Please tell me what pattern of light blinking you get after trying this.
Also does the light start blinking as soon as the set is plugged in, or only after the power button is pressed?
As asked, I need to know EXACTLY what the set does after those steps.
Do you need further assistance with this?
This indicates a fault with the Mainboard of the set. I'm sorry but the only thing you can try is leaving it unplugged from power for several hours or more in the hopes that the processor resets. If it does not, then you have a lemon here and would need to return the set and swap through the retailer. I'm sorry for the bad news but there isn't a quick fix for this problem.
If you need further assistance let me know. Please do not forget to click the 5 STAR RATING, at the top of the page for my efforts. It is my livelihood and you can follow up at any time if needed.
Hmm, in your opening question you said the TV was "brand new".
So it's brand new yet you have had every single board in the TV replaced? You've lost me. I will opt out.