You can click Settings-Privacy-Exercise and Fitness, and then click Open Fitness Tracking Switch after entering. Please refer to the following for specific operations.

Tools/materials: IPhone7splus mobile phone.

1, click Settings first.

2. Then click Privacy.

3. Then click Exercise and Fitness.

4. Then click to turn on the fitness tracking switch.

After this operation is completed, the step counting function of Apple mobile phone is successfully started.