Hey there! I’ve tackled similar accessibility toggle issues on OPPO devices like the A37f before, so let’s go through actionable fixes to keep your Accessibility settings permanently enabled.

OPPO’s aggressive battery optimization is usually the culprit here—it often flags accessibility services as "unnecessary" and shuts them down in the background. Here’s how to fix it:

• Open Settings > Battery > Battery Saver
• Tap on App Power Saving and locate the app associated with your accessibility service (e.g., if you’re using a screen reader, find that app)
• Set its power saving mode to No Restrictions (or "Allow Background Activity" depending on your ColorOS version)
• Also, check for a Background Activity Management option in the Battery menu—make sure your accessibility service is allowed to run unrestricted.

OPPO’s default app cleaner will close unlocked apps when you swipe away recent tasks. Lock your accessibility app to prevent this:

• Open your recent apps list (swipe up from the bottom of the screen, or press the recent apps button)
• Find the accessibility app’s card, long-press it, and tap the lock icon that appears. Now it won’t get cleared when you clean background apps.

OPPO’s Security Center has auto-optimization features that might disable accessibility services without your knowledge:

• Open the Security Center app (usually a shield icon on your home screen)
• Look for Device Optimization or Auto-Optimize—tap into it and exclude your accessibility service from being optimized
• Alternatively, go to Settings > Apps > Manage Apps, find your accessibility app, tap Battery, and toggle off Optimize Battery Usage.

Sometimes incomplete permissions cause the service to crash or auto-disable. Let’s reset and re-grant permissions:

• Go to Settings > Accessibility
• Find the service you’re using, toggle it off, then toggle it back on
• When prompted for permissions (like "Allow this app to access your screen" or "Run in background"), make sure to tap Allow for every request
• Double-check additional permissions: Go to Settings > Apps > [Your Accessibility App] > Permissions and ensure all critical permissions (e.g.,悬浮窗, background activity) are enabled.

• If you recently installed a privacy, security, or battery-saving app, it might be interfering with accessibility services. Try temporarily uninstalling these apps to see if the issue goes away.
• Outdated system software can have bugs that cause accessibility services to drop. Go to Settings > Software Update and install any available ColorOS updates for your A37f.

If all else fails, you can use ADB to force the accessibility service to stay enabled:

1. Enable Developer Options: Go to Settings > About Phone and tap Build Number 7 times until you see "You are now a developer!"
2. Turn on USB Debugging in Settings > Developer Options
3. Connect your phone to a computer with ADB installed, then open a command prompt/terminal and run:
   • First, get your service’s package and service name: adb shell dumpsys accessibility (look for the line starting with "enabled_accessibility_services")
   • Then set it to stay enabled: adb shell settings put secure enabled_accessibility_services com.your.package.name/com.your.package.name.YourServiceName
   • Finally, force-enable accessibility: adb shell settings put secure accessibility_enabled 1

If none of these steps work, reaching out to OPPO’s customer support or posting in their official community might help—sometimes device-specific bugs need official patches.

内容的提问来源于stack exchange，提问作者karanjot singh