HP Laptop had rainbow static screen, turned it off won't turn back on

Oct 15, 2018
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Hello, I have an HP Pavillion laptop that I got refurbished about two years ago and a couple of days ago I turned it on and once I logged in I was met with a laggy rainbow static screen. So I immediately turned it off by holding down the power button and now it will not turn back on. I've already tried a BIOS reset but that did not work so I'm convinced it's a hardware issue. I also put in a replacement battery a week before this happened. Any possible diagnosis and suggestions for a DIY fix? Any feedback is much appreciated.
 

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