In order to connect your Acer Liquid Z3 to XBox :
1-Go to menu on your Android then tap "Settings".
2-Press the "wireless and network connections" Option in the Configuration list.
3-Touch "Tethering and WiFi zone."
4-Check the box next to "WiFi Zone" The WiFi wireless zone is now enabled on your Android smartphone and by default, "AndroidAP." Call
Connect the Xbox WiFi zone
1- open your Xbox.
2- Go to My Xbox section, then open the "System Settings" menu.
3- Select "Network Settings" and press the A button
4- Select the "AndroidAP" wireless network. Your Xbox will connect to your WiFi wireless area Android.