How to hard reset iphone 4s without power button? URGENT

My sleep/power button on my iphone has been jammed for the past couple of weeks. So nothing happens when i press the sleep button.

However, my iphone randomly crashed this morning and the screen is just completely blank. Normally when it crashes like this, i just do a hard reset by holding down the home and sleep button. The hard reset always the turns the phone back on. But my sleep button no longer works so i can't do a hard reset in anymore. I was wondering if there was any other way that i could do a hard reset that would turn my phone back on.

By the way, i tried to plug my phone into my computer and still the phone remained unresponsive.

It might be that your phone has somehow ended up in DFU mode. I have got something that can check for it if you have skype, add me, and i can send you it, and talk you through it? You can find me on skype at

powell_4_king@hotmail.co.uk