Thank you for your attention!
I change the usb line ,so theme manager can connect with EM30
It can also transfer files into my phone, I used E8 theme, but the theme did not work.
I doubt that the problem is the theme package,because it's not designed for EM30.
My friend told me that E8 phone can't use this software too.
I think the back door is TCP/IP, because this software just use TCP/IP.