I can not turn off VoiceOver on iPhone 4S How can I turn off VoiceOver and get back to normal ?!

As I follow the instructions how to turn off 'VoiceOver' in Setting on my iPhone,
however VoiceOver icon get back on quickly after double click...
(haven't upgrade iOS 8.1.1 yet)


Tried to do double click 'Voiceover' icon in Setting, but doesn't off and switch on  back quickly..
Done press 'Home' button 3 times quickly, but Top page shows up later..
Done turn off the phone, the VoiceOver shows up with passcode screen.. 


What else I can do for turning off the annoying voice?
Turning Voiceover Off


Double-tap the Settings icon on your homepage.
Use three fingers to scroll down to the General menu, and double-click on it.
Use three fingers to scroll down to the Accessibility menu, and double-click on it.  
Double-tap on the VoiceOver menu item.
Turn VoiceOver off


Alternatively, in iTunes you select summary and click Universal Access, then choose either Zoom or Neither rather than VoiceOver.