Iphone 4 help! Not turning on?

My iphone 4 randomly turns off while I'm using it, first it freezes then the screen gets pixelated and goes blue then turns off even when its fully charged and it won't turn on sometimes for a couple days, sometimes it turns on by itself after a couple hours, tried everything hard reset, charging it, plugging into itunes nothing seems to work

Do an itunes restoral… '

if the issue remains, then your iphone died… Call apple and get it replaced… If your warranty is out or void and you have no isnurance through apple or wireless carrier, then you are royally screwed, like William did to Kate on their wedding night!

can you upgrade?
got $399 for a used iphone?

swappa.com may have some iphone deals

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