This should be a fairly straightforward process with minimal risk of bricking your device, however, I am definitely not responsible for any damages incurred during this procedure. Prerequisites: ZTE device drivers for USB. (Connect your phone via the USB cable and choose the "Install Driver" connection type from your device). 1: Boot phone into FTM (hold the Volume Down key and power on device). 2: Connect USB cable to your computer. 3: Download View attachment ZTE Avid 4g root (MetroPCS).zip and unzip. 4: Open a command prompt (Start+R) type "command". 5: From the command line, cd into the newly created directory and type root 6: While the phone reboots, be sure to hold the "Volume Down" button to boot back into FTM. If it begins to boot normally, pull the USB cable and power phone down to reattempt booting into FTM. Once you're back in FTM, plug the USB cable back in and the script should resume the process. 7: Once it's finished, let the phone boot into normal mode and verify root access. I used "Root Checker Basic". Enjoy!