How to Enable Assistive Touch in iPhone/iPad

Step 4: Tap AssistiveTouch to turn it on.

Step 5: Toggle AssistiveTouch.

Method 2 

Note: Before using this option, make sure your device has Siri enabled.

Method 2: Use "Hey Siri" to say, “Turn on AssistiveTouch.”

For older Model iPhones/iOS

Method 1

Step 1: Launch the Settings app on your iPhone or iPad.

Step 2: Tap on General.

Step 3: Tap on Accessibility.

Step 4: Tap on AssistiveTouch under the Physical & Motor section — it's towards the bottom. Turn On AssistiveTouch.

Method 2 

Step 1: Go to Settings > General > Accessibility and scroll down to Accessibility Shortcut. 

 

Step 2: Under the triple-click the Home button for option, select Assistive Touch.

Now you can turn the Assistive Touch on or off by holding down the Home button three times.