How to Unroot the ZTE Mustang (AT&T)

Perhaps you’re done playing with root and custom ROMs on your Android device? Regardless of the reason, it’s usually pretty easy to unroot your device and go back to the stock firmware.

Some of the reasons for unrooting your ZTE Mustang (AT&T) are:

• Sending in the device for warranty (most, but not all unrooting procedures reinstate the manufacturer warranty if you had one before rooting).
• Starting over (simply undoing everything you did while rooted so you can have a clean slate to start over).
• Fix any issues (Maybe rooting messed something up? No problem, unrooting will take care of it for you).

Ready to get started? Here’s how to unroot the ZTE Mustang (AT&T):

I. Before You Begin

1. You must have a custom recovery installed on your device in order to do this procedure. If you’ve done our How to Root the ZTE Mustang (AT&T) procedure, you have it already.

2. This will wipe off all the data on your device, so make sure to first take a backup and then do the procedure.

II. Downloading Required Files

1. Download Stock ROM and save it to your Desktop.

Stock ROM (Download link’s given in the first post)

III. Unrooting the ZTE Mustang (AT&T)

1. Connect your device to your PC using the USB cable.

2. Copy the Stock ROM zip from your Desktop over to the root of your SD card.

3. Once it’s been copied, disconnect your device from your PC.

4. Turn OFF your device.

5. Turn it back on by holding down Volume UP+Power buttons together.

6. Your device should reboot into CWM Recovery mode.

7. In the recovery, select Wipe data/factory reset and hit Yes.

8. Now select install zip from sdcard and choose the Stock ROM zip you copied earlier to your device.

9. It should start flashing the Stock ROM on your device.

10. Once the flashing’s done, reboot your device.

11. You’re all done!

All set! You are now running stock firmware on your ZTE Mustang (AT&T) and have unrooted it.

Want to try again? You can always reroot your device by heading to our Rooting How To’s section, finding your device, and doing the How to Root listed for it there.