What is "Accessibility"? Where do I turn on "Accessibility"? What should I do if the "Accessibility" fails to open? I. What is "Accessibility Service"? Accessibility services can be set in Settings, which can help us to achieve many convenient operations, such as "keep application active" or "pop-up notifications". II. Where to enable "Accessibility Services"? In the Accessibility settings, find "DOWNLOADED APPS" (also called "DOWNLOADED SERVICES" on some models). Find "WidgetBox Enhanced Mode", click it, and turn on the authorization. III. What should I do if the "Accessibility Service" fails to open? There are many reasons for failure, most of them can be solved by restarting the phone. 1. "This service is malfunctioning" Hint Restart the phone to recover, usually due to the clean-up process by system, please follow the tutorial to avoid background apps been killed. 2. The Accessibility service is on, but there is a failure hint Cancel the Accessibility service authorization, and then re-authorize it. If it does not work, restart the phone. 3. "Permission request is blocked by an application" Hint When authorizing Accessibility services, there should not be any window blocking the screen. We need to close the Assistive Ball, Eye comfort, Gestures and other features. Once you authorize the accessibility service, you can resume using them. If you can't find what is blocking it, you can restart your phone and try again. On some devices, the full-screen gestures that come with the system are also a special window that must be switched to the classic navigation bar in order to be successfully authorized. After authorization, you can switch back to full-screen gestures. (This situation is only encountered on some MIUI devices) 4. Other cases Restarting is a good idea, try to restart your phone when you encounter difficult problems.