1. Settings-Find Application Manager-(All) -S Health-(Storage)-Clear data (data may be lost after clearing).
2. If you still can't count the steps, please go to Settings-About Equipment-Software Update (System Update)-Update (please back up the data in the equipment before upgrading).
3. If not, please back up the data (contacts, pictures, text messages, etc. ) and try to restore the phone to the factory settings.
If the problem still exists, please take the purchase invoice, maintenance card and machine to the service center, and the professional after-sales engineer will help you test it.