1. Open Settings on your iPhone. 2. Scroll down and tap Display & Brightness. 3. Tap on Auto-Lock. 4. Choose your preferred time period after which the iPhone screen should lock automatically. Options ...
Most Androids: Settings > Security & privacy > Device unlock > Screen lock > passcode > None > Delete. Samsung: Settings > Lock screen and AOD > Screen lock and biometrics > passcode > None > Remove ...