Why isn't my iPhone 4 working

I shattered my screen back in February and my lock button has been broken even before that. I've been using the assistive touch button or whatever it's called and that gets me by just fine. Today, I was using Safari and listening to music but when I tried to exit Safari, I couldn't. When I pressed my home button, nothing happened. I tried to use my assistive touch home button and it didn't work so I tried to use the assistive touch lock button and nothing worked. I've had people text me and they don't even come through. My phone just lights up again. My phone has been sitting here with the light dimmed but never actually timing out and locking for about 45 minutes now.

Get a screen repair, off eBay. They also sell new hom e buttons for the iphone 4 on ebay

Its might have gone to locked.

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