Hi! I understand your Oral-B app version 10.7.1 isn’t updating the firmware on your new iO5 toothbrush. I’d love to help you get this sorted out. Just to clarify, is your iPhone connected to the toothbrush properly via Bluetooth? Also, do you see any error messages or does the update process just not start?

Meanwhile, here’s a step-by-step approach you can try to resolve this firmware update issue on your iOS device:

1. Check Bluetooth Connection
- Make sure Bluetooth is enabled on your iPhone.
- Confirm that the toothbrush is properly connected to the Oral-B app. Sometimes, disconnecting and reconnecting the toothbrush within the app helps.

2. Charge Toothbrush Fully
- Ensure your iO5 toothbrush is charged to at least 50% as firmware updates typically require sufficient battery to complete safely.

3. Close and Restart the App
- Close the Oral-B app completely (swipe it away from app switcher) and then reopen it. This refresh often helps detection issues.

4. Restart the iPhone
- A quick restart of the iPhone can resolve temporary connectivity glitches between the device and the toothbrush.

5. Update iOS and the Oral-B App
- Ensure your iPhone is updated (you’re on iOS 18.7, which is current).
- Double-check the Oral-B app version: While 10.7.1 is recent, check the App Store just to confirm there’s no newer update available that might address firmware update issues.

6. Firmware Update Process
- Open the Oral-B app with the toothbrush powered on and within Bluetooth range.
- Follow prompts carefully to start the firmware update. Do not exit the app or move the brush away until it completes.

If after these steps the update still fails, it might be a software, app compatibility, or Bluetooth issue. In that case, I can guide you through deeper steps, such as reinstalling the app, resetting the toothbrush, or checking for any known connectivity issues with the iO5 model and iOS 18.7.

Would you mind telling me if you have tried any of these steps already, and exactly what happens when you attempt the firmware update? This way I can tailor my assistance further.

Also, here’s a quick video explaining firmware update for Oral-B brushes which might be helpful visually: How To Update Firmware Oral-B Toothbrushes [1].

Looking forward to your reply!