[root] ZTE Open C
I was browsing a help thread I have over at the dev.b2g google group this morning when I came across a post by Vance Chen. Look at the bottom of the thread and you will find a link to root the ZTE Open C!
You will need to have Windows Vista/7/8 to run the upgrade tool and flash the developer build.
First, you will need to download the ZTE Upgrade Tool, then you can either choose between a US build (for those of us who live in the Americas,) or an EU build (for those who live in Europe.)
Don't forget to remove your sim card before flashing!
Once you have the firmware downloaded, navigate to the directory you downloaded it to, then extract the .zip file. Now, open up the upgrade tool and click the browse button. You will need to navigate to the root directory of the extracted files. Once that's done, make sure your phone is detected and click update.
is the link!