Transfer Audio Files from a Windows Computer:

1. Connect the ZTE Zmax Pro to your computer via USB
2. When prompted, turn on “File Transfer (MTP)” / “Media device (MTP)”, otherwise enable the option from the “Notification” area
3. Launch the File Explorer on the PC
4. Use the Explorer to locate the desired audio files on your computer
5. Copy the files and transfer them on the phone storage, preferably in the “Ringtones” / “Notifications” / “Alarms” folder(s)
6. After the transfer is done, eject the phone storage via system tray and safely disconnect the device from the USB cord

Change the General Ringtone:

1. Open the apps drawer and launch “Settings”
2. Scroll to “Device”
3. Tap “Sound & Notification”
4. Tap “Phone ringtone” and select the desired ringtone
5. Tap “OK” to confirm
6. Optionally, you can choose to disable “Also vibrate for calls”

Change the Ringtone of a Specific Contact:

NOTE: Custom ringtones cannot be assigned to contacts located on the SIM card or the device’s internal memory.

1. Open “Contacts”
2. Select the desired contact
3. Tap “Edit” > “Menu”
4. Tap “Set ringtone”
5. Select the desired ringtone and tap “OK” to confirm

Change the Notification Sound:

1. Launch “Settings”
2. Scroll to “Device” and tap “Sound & notification”
3. Tap “Default notification ringtone”
4. Select the notification sound you want to set
5. Tap “OK”