1 – Extract the firmware files in a specific folder for each model.
2 – Extract the file "fastboot.rar adb" in each folder that contains the firmware.
3 – Put your phone into fastboot mode, and connect to your computer.
4 – Open the file "comandos para o moto g" and copy all file commands.
5 – Open the folder for your phone model (xt1068 / xt1069 / xt1078), click the right mouse button and within that folder. Select the "Open command window here" option.
6 – Will open a screen where you should paste the command that you copied earlier.
7 – Click ENTER and wait finish the process.