Why doesnt 3D touch work on my iphone 6s. I have it turned on.

Tell us what you have in Settings > General > About > Model > ???

You can use 3D Touch on the Home screen—press an app icon to see quick actions menus. For example, press the Camera icon on the Home screen, then choose Take Selfie. Quick actions work in Control Center too. For example, press Flashlight, then drag the slider to adjust the brightness.

Change 3D Touch sensitivity. Go to Settings > General > Accessibility > 3D Touch, then set 3D Touch sensitivity to Light, Medium, or Firm.

Hi

Not all apps work with 3D just tried Facebook icon on my iPhone 6s that works OK.

Go to books download ios 11 user guide & iPhone 6s guide both are free.

Cheers

Brian 🇬-1F1E7;