KA272 Monitor on but screen is black (version KA272 bi)

KA272user

I've had this monitor for two years and this is my first time having an issue. the monitor is on, the blue light in the corner is lit up, but the screen isnt lighting up. It is plugged into my laptop via a hdmi cord. I know the cord and my laptop are not the problem because I have another identical monitor that is working, and I have switched the hdmi cords between the monitors so I could be sure the cord isnt the problem. When I unplug the power source and plug it back in, the monitor briefly lights up and shows my computer background, but it turns off after a second. The same thing happens when I turn the monitor off and on again using the power button. Has anyone else experienced this issue? any advice on how to resolve?

Jack22

@KA272user

1. Turn off the monitor
2. Unplug all the wires connected to the monitor
3. press and hold the monitor power button for 30 seconds
4. Connect the power cable back on and try to turn on