root avant3639T1 with macbook pro

[AC Question]

need to enable usb debugging

 

[Rukbat]

You enable USB debugging in the phone, not on a computer. Settings/General/About device/ Tap Build number 7 times. Back out once and you'll see the developer menu above the About device menu. USB debugging is in there.

No idea what you do to root the phone from there - try XDA Forums.