Transfer Audio Files from a PC:

  1. Connect the Android phone to the computer via USB
  2. Enable “Media device” / “File Transfer” at the prompt or from the Notification area
  3. Launch the File Explorer on the computer
  4. Locate the desired audio files on the PC storage
  5. Copy and transfer the files to the phone storage, preferably in the “Media” folder
  6. Once the process completes, eject the phone storage via system tray and safely disconnect the device from the USB cord

Change the General Ringtone:

  1. Open “Settings
  2. Scroll to “Device
  3. Tap “Sound & Notification
  4. Select the desired ringtone and tap “OK “to confirm
  5. Optionally you can turn “vibrate for calls” ON or OFF

Change a Contact’s Ringtone:

NOTE: Custom ringtones can’t be set for contacts located on the SIM card or the internal storage.

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

Change the Notification Alert Sound:

  1. Open “Settings” and go to “Device
  2. Tap “Sound & Notification
  3. Access “Default notification ringtone
  4. Select the desired notification sound
  5. Press “OK” to confirm

See More: Asus Zenfone 4 Selfie: Transfer Audio Files from a PC and Set Custom Ringtones & Notifications