Transfer Audio Files from a PC:

  1. Connect the Android phone to the PC via USB
  2. On the phone, enable “Media device” or “File Transfer” from the prompt or Notification area
  3. Launch the File Explorer on the computer
  4. Locate the audio files on the computer
  5. Copy and paste the files to the phone storage in the “Ringtones” and/or “Notifications’ directory
  6. Once done, eject the phone storage and safely disconnect the device from the USB port

Change the General Ringtone:

  1. Open “Settings
  2. Go to “Personalize
  3. Tap “Ringtone
  4. Select the desired ringtone
  5. Tap “Apply

Change a Specific Contact’s Ringtone:

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

  1. Launch “Phone
  2. Tap the contact whose ringtone you want to change and tap “Ringtone
  3. Select the desired ringtone
  4. Tap “Apply

Change the Notification Alert Sound:

  1. Open “Settings
  2. Go to “Sound & notifications
  3. Tap “notification sound
  4. Select the desired notification alert sound
  5. Tap “Apply

See More: HTC U12 Life: Transfer Audio Files from a PC and Set Custom Ringtones & Notifications