Q: How can I disable the  " switch control" - tapping home button 3 times does not work

Hello Placelane4,

If you are unable to turn off Switch Controls buy triple tapping the Home button, then navigate to Settings > General > Accessibility > Switch Control to turn it off. Take a look at the article below for more information.  

iOS: Switch Control helps you navigate your iOS device

http://support.apple.com/en-us/HT201370

Regards,

-Norm G.