Epic 4G Boot Issues

[eflood1133]

Please help in anyway that you can. I was attempting to root my Epic for ACS recovery using Odin. Odin initially picked up on my device but when I hit start it failed. Then I tried a different port, cable, and took out the sd and now my phone wont start and it has a graphic showing a phone connected to the computer with a yellow sign in the middle. Any help will be greatly appreciated. Thanks in advance.