Why does 2014.09 latest c3 says "no authorization " when access to entry?
Because diagnostic tools is not activated. Generally, the "no authorization" problem is because it is not activated.

2014.09 latest c3 needs activation code. How to do?
Firstly, you should insert the harddrive into the computer, then turn no the computer. There is the PDF manual on the desktop.  Please read it and follow as it. At last, you can give us the ID to us and we will activate it for you.
If you purchase 2013.1 Latest C3/C4 software you should be also take care of the activation.