Transferring Audio Files for Ringtones or Notification Sounds:

1. Use your USB cable to connect your phone to your computer
2. When the Windows Explorer pop-up appears on your PC, select "Browse files"
3. Access the "Internal storage" folder
4. Depending on the type of sound you wish to transfer, open the "Music" or "Notifications" folder
5. Open a new Windows Explorer window
6. Browse for the files that you wish to transfer, located on your computer
7. Copy the files and paste them in your phone's "Music" or "Notifications" folder
8. When the transfer is complete, click the "Safely Remove Hardware" icon located in the system tray
9. Click "Safely Remove Mass Storage Device" > "OK"
10. You can now disconnect your smartphone from your PC

Changing the Notification Sound:

1. If necessary, follow the guide above to transfer the desired sounds
2. On your phone's home screen, tap the "Applications" icon
3. Go to "Settings"
4. Under "Device", tap "Sound"
5. Tap "Default notification sound" under "System"
6. Select the audio file that you wish to use. NOTE: your newly added files will be found at the bottom of the list
7. Tap "Done" to confirm

Setting a Custom Ringtone for all Calls:

1. Transfer the desired audio files onto your smartphone (see above)
2. Tap the "Applications" icon located on the home screen
3. Open "Settings"
4. Scroll down to "Device" and tap "Sound"
5. Tap "Phone ringtone" under "Ringtone & Vibration"
6. Tap the "Music" icon located in the top-right corner
7. Browse for and select the file that you want to set
8. Tap "Done" to confirm

Setting a Custom Ringtone for a Specific Contact:

1. Follow the guide above to transfer the desired audio files onto your phone
2. Tap the "Phone" icon located on the home screen
3. Go to the "Contacts" tab, located in the top-right corner
4. Select the contact that you wish to set a custom ringtone to
5. Tap the "Edit contact" icon located in the top-right corner
6. Scroll to and tap the "Ringtone" drop-down menu
7. Touch the "Music" icon. It's located in the upper-right part of the screen
8. Navigate to and select the audio file that you wish to set
9. Tap "Done" and then "Done" again for confirmation