iOS gives you the functionality of shaking your phone so as to undo typing you just did in apps like as Messages, Notes, Mail, Calendar, or Contacts. Well said, it is a very helpful feature, but then sometimes, it could really become a nuisance. Should you wish to accidentally activate the “Shake to Undo” feature in course of your daily activities, you easily can now disable this feature in iOS 9.
To disable “Shake to Undo”, simply tap the “Settings” icon on the Home screen.
On the “Settings” screen, choose “General”.
After this, tap “Accessibility” on the “General” screen.
To the right of “Shake to Undo”, you can see either “On” or “Off”, this shows the status of the feature. If you want to change the status, tap “Shake to Undo”.
If the “Shake to Undo” feature is on, the slider button to the right will be green and white. If you want to disable this feature, simply tap the slider button.
When the feature is off, the slider button will now be gray and white.
At this moment, you could shake your phone anyhow you want it, but it will not activate the “Shake to Undo” feature. Nonetheless, should you decide you want it on again, this is not hard to do.
NOTE: It is important to note that , you strictly must be running iOS 9 so as to disable the “Shake to Undo” feature.