well, what all have you done to trouble shoot?
Have you taken the drive out and put it in another computer to see if it will boot then or if you can access the files on it?
Have you checked all connections?
Have you checked voltages?
Have you checked your battery to make sure that you didn't kill it?
Not having listed if you have done any of these things is probably why you haven't gotten a response.
It's pretty much like saying "My car won't start, what's wrong?" and that's it....lol