Originally Posted by pht
The screen is blank, I cannot access any functions. I'm fairly certain that the screen itself is not bad, because I cannot access anything at all, not even blindly.
One thing that you did not say if you tried, and no one thus far has suggested is a "reset". Pressing and holding the power button for (normally) 20secs. but in stubborn cases it can take up to a minute or more. Have you tried that?
This is the 1st thing one should try when anything goes wonky on these things. Unfortunately, many don't either know about it, forget about it or think something so simple is not likely to help.