Facing issues with WeChat not responding to messages on ColorOS 15 even after granting it auto-start permissions and using the frozen tombstone feature? You're not alone. This guide will help you troubleshoot this problem and get your WeChat notifications working properly.

**Understanding the Problem**

On ColorOS 15, the frozen tombstone mechanism can prevent apps from launching in the background, even if they have auto-start permissions enabled. This can lead to situations where WeChat, though granted permissions, fails to respond to incoming messages as the app isn't actively running.

**Possible Solutions**

• Check App Permissions: Ensure WeChat has all necessary permissions, including "Auto-start" and "Background Process" in the App Manager settings.
• Disable Battery Optimization:** Go to Battery settings, find WeChat, and disable any battery optimization or Doze mode restrictions.
• Clear App Cache and Data: Navigate to App Management, select WeChat, and clear its cache and data. This can sometimes resolve conflicts causing the issue.
• Update WeChat: Make sure you're using the latest version of WeChat. Updates often include bug fixes and performance improvements.
• Restart Your Phone: A simple restart can sometimes clear temporary glitches and improve app stability.
• Try a Third-Party Launcher: Consider using a third-party launcher as some built-in ColorOS features might interfere with app functionality.

**Need More Help?**

If these steps don't resolve the issue, consider contacting OnePlus support or visiting the ColorOS community forums for further assistance.