Transfer Audio Files from a PC:

  1. Establish a USB connection between the Android phone and PC
  2. On the phone, enable “File Transfer” / “Media device” when prompted or from the Notification area
  3. Open the File Explorer on the PC
  4. Locate the audio files on the PC storage
  5. Copy the desired files and transfer them to the phone storage, preferably in the “Ringtones” folder
  6. After the transfer completes, eject the phone storage via system tray and safely disconnect the device from the USB

Change the General Ringtone:

  1. Launch “Settings”
  2. Go to “Sound & Notification”
  3. Select the desired ringtone and tap “OK”
  4. Optionally, enable or disable “Also vibrate for calls”

Change a Specific Contact’s Ringtone:

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

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

Change the Notification Alert Sound:

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

See More: Sharp R1S: Transfer Audio Files from a PC and Set Custom Ringtones