There are two ways to turn off the iPhone screen lock sound : turn it off completely and turn off temporarily. To turn it off completely, first, from the Settings app, scroll downwards, and select the Sound & Hapstics option. However, on older iPads and iPhones, choose Sounds. Next, scroll to the bottom of the screen and find the Lock Sound option. Here, switch the switch to Off.
Turn off the sound in the Settings app
The second method will apply for you to want to disable the screen lock sound in certain cases. Simply switch the Ring / Silent switch on the top left corner of your iPhone to the Silent position. At this time, the text Silent will appear on the screen and the screen lock sound and other sounds, the phone ringtone, keypad tones, and application alert tones will be turned off.
How to turn off iPhone screen lock sound temporarily
To deactivate this mode, simply switch the Ring / Silent switch to the location marked in red. However, some newer iPad models do not have a Ring / Silent switch. Now, look for the bell-shaped icon when you swipe from the bottom edge of the screen. The words Silent Mode: On will appear on the screen and the bell icon will turn red. Here, press again to turn silent mode off.
Use on iPad
Above are 2 ways to turn off iPhone screen lock sound . Apply now to easily manage or not be annoyed by the sounds coming from your device anymore. Good luck!