AW2518H, power light on, no display?

Hey everyone, About a week ago I bought the AW2518H 240Hz G-Sync monitor. It was working fine until now. This morning when I turned on my computer, the AW2518H power light was on yellow and when I tried pressing the power button It stayed the same color and started pulsating and did not switch on. I unplugged and re-plugged the power and the DisplayPort cable. Then the light turned blue which signifies that its on, however, there was still no display. I looked on the forum and found that I had to unplug the power cable and the DisplayPort cable and then hold the power button for about 8 seconds. I tried that, but it still didn't work and there was no pop up saying that there wasn't any input or cable connected. I tried plugging the monitor into my laptop and other computer. It didn't work. I tried troubleshooting whether it was a faulty cable by using a different displayport cable, and even that didn't work. Hence I figured out it was the AW2518H problem. Even when I hold down the 3rd button for a self troubleshoot, it doesn't bring up a grey screen nor indicate any sign of a troubleshoot commencing. I don't know of anything else to do. Is there any fix for this? Any suggestions? Thanks for your time.