My phone is Z550a. (DB2010 CID52)

With SETool2 Lite v1.11.
When I try to do the following:
2. In Windows Explorer drag the MAIN file (.mbn) onto SETool2 Lite v1.11 folder\qamaker\qamaker.exe. In the qamaker's folder you will get a quick_access_XXXX_XXXXXXX.vkp file.

I got a error, any help?