I have tested this option in Redmi K20 Pro. In all Xiaomi model mobiles this option available. This option help to get rid of old beep sound to piano sound in our Dailpad.
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HOW TO ENABLE ?
• Open Dailer App (Phone App)
• Goto Call Settings
• Advanced Settings
• Dail Pad Touch Tones
• Tones
• Select Piano Keys
• All done.
Now open your dailer and press any key, you will hear a beautiful Piano sounds on each key press.
WATCH VIDEO TUTORIAL
NOTE
Works only on Xiaomi Model Smartphones. May be available in other Model Smartphones too. Give it a try on yours. Feel free to comment below. Thank you.