My IPhone screen isn't working?

So i dropped my phone a while ago in July and the screen cracked. I didn't feel like it was necessary to get it fixed because it worked and I could still see everything in it but just today the screen RANDOMLY went blank… I was able to pick up a call from my phone when it buzzed because i just swiped and it answered. It buzzes and lights up in weird colors but I don't see any actual images. Does anyone know what's wrong with it? If you do, do you know how I can fix it, how much it would cost, and how long it would take? I have an iPhone 4.

I dropped my iphone the other week, and had a similar problem like yours. The weird colors are from the LCD, which seems to me it has been damaged. Don't get it repaired by someone else, they charge a lot and it's not even worth it! I used iscreensfix.com's repair guide, and bought a new screen off eBay. I followed their guides and videos, and had it on really quickly and easily.

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