I tried plugging it into the wall and nothing. Tried to recover it through the computer and the screen stays black. I've tried pressing the sleep and power buttons for 10 to 15 seconds and nothing happens. The phone worked a couple hours ago and it had a full charge. Has anyone else had this problem and how did they fix it? Thanks in advance for any advice.
Try holding in both the on/off button and the home button for about 10-15 seconds, the apple should appear on the screen and let go...you'll be good to go.