Transfer Audio Files from a Windows PC:

  1. Connect the LG Leon to your computer via USB
  2. At the prompt tap "Media sync (MTP)"
  3. Click "Open device to view files"
  4. Open a second Windows Explorer window and locate the desired audio files on your PC
  5. Copy the files and transfer them on your phone's storage, preferably in the "Ringtones" and / or "Notifications" folders
  6. Once the transfer is done, click the "Safely Remove Hardware" icon in the system tray
  7. Click "Safely Remove Mass Storage Device" > "OK"
  8. Safely disconnect the phone from the PC

Set a Custom Ringtone:

  1. Tap "Apps"
  2. Go to "Settings" and tap "Sound"
  3. Tap "Ringtone"
  4. Select the ringtone you wish to assign
  5. Tap "OK"

Change a Contact's Ringtone:

  1. Tap "Contacts" on the home screen
  2. Select the contact you want to edit
  3. Tap the "Edit" (Pencil) button
  4. Tap "Ringtone" and select the ringtone you wish to use
  5. Tap "OK"

Change the Notification Sound:

  1. Open the apps drawer and go to "Settings"
  2. Tap "Sound" and select "Notification sound"
  3. Tap the sound you wish to assign for notifications
  4. Tap "OK"

See More: LG Leon: Transfer and Set Custom Ringtones & Notifications