Transfer Audio Files from a PC:

1. Connect the android device to your computer via USB
2. Enable “File Transfer” / “Media device” when prompted 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 on the phone storage, preferably in the “Media” directory
6. After the transfer is done, eject the phone storage via system tray and safely disconnect the device from the USB port

Change the General Ringtone:

1. Launch “Settings”
2. Scroll to “Device”
3. Tap “Sound & Notification” and select the desired ringtone
4. Tap “OK”
5. Optionally, enable or disable “Also vibrate for calls”

Change the Ringtone of a Specific Contact:

NOTE: Custom ringtones cannot be set for contacts located on the SIM card or the phone’s internal memory.

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

Change the Notification Alert Sound:

1. Launch “Settings”
2. Tap “Sound & Notification” under “Device”
3. Tap “Default notification ringtone”
4. Select the desired ringtone and tap “OK” to confirm