Oppo
Double Tap to Wake Screen auf Oppo
Double tap to wake lets you activate the screen by tapping it twice on the lock screen, without touching the power button. It relies on the touch panel staying in a low-power listening state while the screen is off, so it can register a tap pattern before fully turning on.
On some Oppo devices this feature is switched off by default, which is why nothing happens when you tap the display. It is also easy to miss because it lives under the general display settings rather than a dedicated gesture menu.
To enable or disable it, open Tap on Settings ➔ Tap on Home screen, Lock screen & Always-On-Display ➔ Enable or disable Double tap to turn screen on. Toggling the switch there takes effect immediately, no restart needed.
If the screen still does not react after enabling the option, check whether a screen protector or case is interfering with touch sensitivity. A thick or low-quality protector can block the panel from detecting the double tap correctly.
This gesture is separate from Always-On-Display and from raise-to-wake. If you only need to glance at the time without unlocking, combining Always-On-Display with double tap to wake often works better than relying on one feature alone.