Welcome to the forum.
You can do these things and see how it goes -
> Disconnect the monitor from all the cables
> Press and hold the power button of the monitor for about 5 seconds and try a differnt power socket and check if its flickering with PS4
> Also try to reset the monitor's inbuilt settings using the monitor buttons.
> Do try to connect the monitor to a computer and check if the screen flickers.
> For more information or service related queries contact HP :
HP Support can be reached by clicking on the following link:
* Open link: www.hp.com/contacthp/
* Enter Product number or select to auto detect
* Scroll down to "Still need help? Complete the form to select your contact options"
* Scroll down and click on HP contact options - click on Get a Case & phone number.
They will be happy to assist you immediately.
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