With the help of Siri, you can get things done by asking, because it sends information like your voice input, contacts and location to Apple to deal with your requests. For example, you can make a phone call, send a message, look for a restaurant, etc. To turn it on or off, this article introduces two methods for your reference.
Way 1: Turn Siri on or off in Settings.
Enter Settings > General > Siri, and click the switch beside Siri to turn it on.
Accordingly, you can tap the switch beside Siri in Settings/General/Siri to turn it off.
Way 2: Turn on or off Siri via Assistive Touch.
Step 1: Turn on Assistive Touch.
Step 2: Click the icon of Assistive Touch on the screen, and tap Siri to turn it on or off on the menu.
Password Recovery Software