To hard reset your Motorola Droid Maxx 2, first power it off.
Then press and hold Volume Down + Power button simultaneously for a few seconds.
Next, press the Volume Down to select option "Recovery", and press the Power button to confirm.
When the Android Image shows up on the screen hold down the Volume Up for a couple of seconds.
Whilst still holding the Volume Up button, hold down the Power key and after a short while release all buttons.
Afterwards press Volume Down to choose "wipe data/factory reset", and then push the Power key to confirm.
Select "Yes--delete all user data". Use Volume Down button to scroll and Power key to select.
To restart the tablet, select "reboot system now".