Some Android phones may automatically clean background apps during the night or regular use due to memory management mechanisms, which can vary by manufacturer. This can cause the watch to disconnect from the app. To prevent this, we recommend manually adding the CMF Watch app to the Android background cleaning whitelist. For some models, long-press the app icon > **App Info** > **Battery** > **Unrestricted**. Consult your phone manufacturer for specific instructions.
We suggest the following steps:
1. **Check Background Running Permissions**:
- In the CMF Watch app, go to **My** > **Background Running Permissions** and ensure that background running permissions are enabled.
2. **Adjust Phone Settings**:
- In your phone's system settings, allow high background power consumption for the CMF Watch app.
- In the application and permission management section, allow the CMF Watch app to auto-start.
- For Android users, access the multi-task management interface (swipe up from the bottom of the screen or press the button), and lock the CMF Watch app in the interface by selecting the top option.