Device Rattle Explained: Causes, Checks, and Next Steps

Device Rattle – What’s Causing It and What to Do

We know it can be worrying to hear a rattle. The good news is that, in most cases, a rattle simply means a small internal piece (often part of the plastic casing) has come loose - this can happen after an accidental drop or a knock.

Do I need to worry?

If your device is otherwise behaving normally, you usually don’t need to be concerned:

• Powers on as expected
• Charges fully
• Connects to the app
• Captures breath readings as before

Keep using it and keep an eye on it. If performance stays normal, the rattle alone typically isn’t a problem.

When to contact us

Please get in touch with the FoodMarble CX team if you notice any of the following:

• Trouble powering on
• Charging issues (won’t charge or drains unusually fast)
• Unusual LED behaviour
• Breath readings that are suddenly inconsistent with your symptoms or past trends
• Any new or persistent error messages in the app

If you’re unsure, reach out - we’re happy to check your device’s performance for peace of mind.

Quick checks you can try

• Charge fully: Give the device a full charge, then test again.
• Restart & reconnect: Power off/on and reconnect to the app.
• Update the app: Make sure you’re on the latest app version.

How to report the issue

Email [hello@foodmarble.com]() with:

1. A short video capturing the rattle
2. A brief note describing what happened (e.g., drop, when the rattle started) and any changes in performance you’ve noticed

Our team will review and advise next steps.

Updated on: 17/09/2025