Dead iPhone 4 and top button is broken?

My iphone was working just fine earlier and now it appears to be dead. I've been googling it and it seems that the only solution would be to do a hard reset (hold top button and home button for a while). But, my top button is broken, so I can't really do that. Sometimes I can get the top button to work, but I'm just not sure if it'll help in this situation. I tried plugging it into a power source and my laptop, but got no response. What should I do?

My phone was like that so I got an iPod 5:) try holding in the home button after you plug it in. You can either get it fixed, get a new one, or you can just call best buy for help.