Realme
Turn On/Off Lock Screen Sound auf Realme
The lock screen sound on realme devices plays a short confirmation tone whenever the display locks or unlocks. It is meant as audible feedback that the action actually registered, similar to a camera shutter sound. This tone is separate from your ringtone, notification sounds, and Focus mode alerts, which is why muting the phone or enabling Do Not Disturb does not remove it.
By default, Realme UI ships with this sound enabled. If you find the constant clicking distracting, or you want it back after a factory reset or system update, the control sits in the extended sound settings, not in the main volume sliders.
Where to find the setting
Go to Tap on Settings ➔ Tap on Sound & vibration ➔ Tap on More sounds & haptics ➔ Enable or disable Lock screen sound.
Toggling this switch off silences the click immediately, without a restart. Turning it back on restores the same confirmation tone at the same volume level as your system sounds.
If you are trying to silence your phone completely during a call, meeting, or at night, check Focus mode or Do Not Disturb as well, since the lock screen sound plays independently of those profiles.