This section takes you step-by-step through disabling the Shake to Undo feature on your device, with pictures of the screen to help.
1. Open the Settings app then tap General, then Accessibility.
2. Scroll down to the Interaction section and tap Shake to Undo.
3. Tap the toggle switch next to Shake to Undo to disable the feature. The toggle switch will turn from green to white.
4. Tap the Back button in the top left of the screen to return to the main Accessibility settings screen. Alternatively, press the Home button to return to the Home screen, or swipe upwards from the bottom of the screen on devices without a physical Home button.