Toothbrush App Not Working After Phone Update? What to Do

Why a phone update can break the app

A major phone OS update can reset some Bluetooth settings, revoke app permissions, or change how apps scan for nearby devices. The toothbrush handle is usually unaffected. It keeps its motor, timer, pressure sensor, and modes. The problem is often that the phone no longer sees the brush as a trusted device or the app no longer has permission to search for it.

Because every phone and toothbrush app handles permissions differently, the fastest way forward is a clean reconnect. You may need to confirm location access even if the toothbrush itself does not use location. Many phones require location services to be enabled when scanning for Bluetooth devices. This is a normal part of the setup and does not affect how the brush cleans your teeth.

• The app opens but cannot find the toothbrush.
• The app shows an old device name that will not connect.
• Bluetooth is on, but the toothbrush is not in the phone Bluetooth list.
• Other Bluetooth devices still work, but the toothbrush app does not.

Quick fixes to try first

Start with the least disruptive steps. They solve most connection problems after a phone update without removing personal brushing data.

• Restart the phone. This clears temporary Bluetooth service errors.
• Charge the toothbrush or place it on its charger, then make sure it is turned on.
• Open the toothbrush app and check for a pending update in your phone's app store.
• Check the app permissions under phone settings. Allow Bluetooth, nearby devices, notifications, and location if the app requests them.
• In the phone Bluetooth menu, remove the old toothbrush entry. The exact name varies by brush model.
• Open the app and search for a new device while holding the toothbrush close to the phone.

Re-pair the toothbrush step by step

Open the app's device settings and choose the option to add or pair a new brush. If the app has a list of saved devices, remove the old entry first. Then put the brush in pairing mode. In most apps this happens automatically when the brush is turned on or when you press and hold the mode button. If you are unsure, see how to connect a Bluetooth toothbrush to an app or the support section of the brush maker's own app.

Keep the phone close to the toothbrush while it scans. If the app asks you to allow a Bluetooth connection, accept it. Once the app sees the brush, follow the on-screen instructions. The brush may be named by its model number, and the app may assign a custom name later.

If pairing fails, turn off Bluetooth and turn it back on, then retry. You can also restart the toothbrush by turning it off and on. More detailed fixes are covered in toothbrush Bluetooth pairing fails.

Reinstall the app or update the firmware

If re-pairing does not work, update the toothbrush app from the phone's official app store. App developers often release compatibility fixes after a phone OS update. Reinstalling the app can also clear corrupted settings. Before removing the app, check whether your brushing history is stored in the app account or with the brush maker. On many systems, history returns after you sign back in.

After reinstalling, sign in and pair the brush again. If the app offers a firmware update for the toothbrush, run it while the brush has enough charge. A firmware update can make the brush communicate better with the new phone system. You can find general tips in get the most from your toothbrush app.

If the app keeps crashing after the phone update, see toothbrush app keeps crashing. If history is missing after you log back in, check toothbrush app history missing.

If the app still cannot connect

When the app still cannot see the toothbrush, try a full reset of the handle. Many smart brushes have a reset procedure that clears the saved pairing without affecting brushing modes. The exact steps are listed in the maker's manual. For a general guide, see how to reset a smart toothbrush.

Also confirm that the toothbrush is charging normally and that the battery is not empty. A brush with a low battery can drop its wireless connection even if the motor briefly turns on. If the brush does not charge at all, treat that as a separate problem: see toothbrush not charging.

Some phones restrict Bluetooth access after an update until the user re-enables it in system settings. Open the phone Bluetooth menu and check whether the toothbrush appears there. If it appears, select it and choose to forget the device, then pair from the app again.

You can still brush well while you wait

The app is a coaching tool, not the toothbrush itself. The ADA notes that either manual or powered toothbrushes can be used effectively. MouthHealthy also notes that manual and powered brushes are both fine as long as you brush twice a day for two minutes with a fluoride toothpaste. NHS guidance gives the same two-minute, twice-daily direction. So if the app is down for a day, continue your normal routine and use the toothbrush's built-in timer.

The ADA home oral care page lists smartphone applications as one option to help you reach the two-minute mark. The National Institute of Dental and Craniofacial Research also includes toothbrushing twice a day with a fluoride toothpaste in its list of ways to prevent tooth decay. Once the app reconnects, it can be a useful timer and coach, but your brushing habit should not depend on it.

What to pick for your use

Questions

Will a phone update erase my brushing history?

Usually no. Many apps store brushing history in your app account or in the maker's cloud service. After you sign back in, the history often returns. If you cannot see it, check your app history settings and confirm you are using the same account as before.

Do I need to buy a new toothbrush after a phone update?

Not automatically. A phone update can break the app connection even when the brush is working correctly. Try restarting the phone, checking permissions, removing the old device, and pairing again. If the app no longer lists your older handle as supported, then a newer app or Bluetooth toothbrush may be worth considering.

Why does the app ask for location permission?

Phones often require location services when an app scans for nearby Bluetooth devices. This does not mean the toothbrush tracks your location. Allowing location is usually necessary to complete the pairing process.

Can I keep brushing while the app is down?

Yes. The ADA and NHS both recommend brushing twice a day for two minutes with fluoride toothpaste. A manual or powered brush can work effectively even if the app is offline. Use the built-in timer or any simple timer to keep brushing for the full two minutes.

What if other Bluetooth devices also stop working?

That points to a phone-side issue rather than a toothbrush problem. Restart the phone, check system Bluetooth settings, and pair the other devices again. If the whole phone behaves oddly after the update, check the phone maker's support pages or install any available phone system update.