My zte score (x500m) is rooted. I'm not exactly sure how i did it as i had tried multiples of methods. But, i can tell you what i think did it.
*Android SDK manager: installing platform tools and google usb driver
*Droid2root: manually click and drag rageagainstthecage.bin to sd card root. ( Don't ask why. I was desperate lol)
At the adb push "c:/rageagainstthecage~arm5.bin" stage of command prompting, there was an error message stating " no such file or directory exists". However, upon rebooting, i discover discovered that superuser began to grant my root required apps their necessary permissions. Finally, after running a root check, Root Checker had confirmed that i indeed had a phone with root access.