Experiencing issues with heartbeat detection logs not appearing in your FCM Diagnostics? Don't worry, you're not alone. This issue can be frustrating, but often has straightforward solutions. Here are some steps you can take to troubleshoot the problem:

1. **Adjust Heartbeat Interval in fcmfix_config.xml:**
Ensure the 'heartbeat' attribute in your fcmfix_config.xml file is set to 120000 (120 seconds). Remember to delete any bak files associated with this file, as they may contain outdated configurations. If you've made changes and the file appears corrupted, deleting it and allowing FCM to re-generate it with the new 'init config' can often resolve the issue.

2. **Validate fcmfix_config.xml:** After making changes or regenerating the file, confirm that the 'heartbeat' value is correctly set to the desired interval. Double-check that there are no formatting errors or unexpected characters within the configuration file. 3. **Restart FCM Service:** After adjusting the settings, restart the FCM service on your device. This can ensure that the updated configuration is reflected and logs are correctly captured.

If you've followed these steps and are still encountering problems, provide further details about your specific setup and the exact error messages you're receiving. This will help in identifying any more specific issues and providing targeted solutions.

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