If you’re like most people, you probably use your iPhone 6s to take pictures, check email, and browse the web. But if you want to use Face ID to unlock your phone, there are a few things you need to know. To get started, open the Settings app on your iPhone 6s. Tap on General and then tap on Accessibility. Under “Face ID & Passcode”, turn on “Face ID”. Now that Face ID is enabled, open the Settings app again and tap on Security. Under “Face ID & Passcode”, enter your passcode (if you have one) and then turn on “Face ID” again. To use Face ID to unlock your phone, just look at the camera lens and it will automatically recognize you. If it doesn’t work the first time you try it, try again later or restart your iPhone 6s. ..