Unable to Turn On Voice Control on iPhone 18 Pro? Fix

Make sure you have a Wi-Fi or cellular connection and restart your iPhone if you can't turn on Voice Control on your iPhone 18 Pro or iPhone 18 Pro Max.

By Moses Johnson - Editor
2 Min Read

Several users have reported they are unable to turn on Voice Control on the iPhone 18 Pro. When they want to turn on this feature, they get the following error message:

Unable To Turn On Voice Control. Failed to download necessary files. Turn on Voice Control to try again.

Voice Control is an iOS Accessibility feature. It lets you use your voice to interact with your iPhone 18 Pro. A lot of people use this feature. It is especially designed for people who have mobility issues. You can start using this feature by going to Settings > Accessibility > Voice Control > Set Up Voice Control. After this quick initial setup, you can easily turn off and on Voice Control. When this feature is enabled, you will see a blue microphone icon in the status bar of your iPhone.

If you need help with enabling Voice Control, then this article is for you. This guide will provide some basic troubleshooting steps to fix this problem. Try the following tips in order. After trying each tip below, try to enable Voice Control again to see if your issue is fixed.

Fix: Voice Control Won’t Turn On

Notes:

  • The Voice Control feature varies by language, and country, and region. It is not available everywhere.
  • Make sure that you have a Wi-Fi or mobile/cellular data connection. The connection is required to download a file. Once the file is downloaded, this feature does not require an Internet connection. For example, you can try a different Wi-Fi network and try again.

1. Update. Make sure that your iPhone 18 Pro is up to date. To update to the latest version of iOS, go to Settings > General > Software Update. This will check for updates. If an update is available, an Update Now button will appear. Click the button and then follow the onscreen instructions to update your iPhone.

2. Restart. Restart your iPhone 18 Pro and then try again. Here is how you can restart your device:

  • Simultaneously press and hold the side button and either volume button until the sliders appear, then drag the Power Off slider.

    An illustration of iPhone with arrows pointing to the side button on the upper right and a volume button on the upper left.

3. Check your storage space. Make sure that you have enough storage space on your iPhone. On your device, go to Settings > General > iPhone Storage. You may see a list of recommendations. If you do not have enough storage, you can remove some of your content (apps, photos, etc).

4. Siri. Turn off Siri and try again. And while Siri is disabled, try to turn on Voice Control. If you can turn on Voice Control, then enable Siri again. You can enable or disable Siri by going to Settings > Siri.

If this does not work, and if you have Low Power Mode enabled, try disabling it and then try again. You can do that by going to Settings > Battery > Power Mode.

5. Contact Apple. If you are having this problem, Apple offers accessibility support over the phone or chat. Apple’s accessibility support page provides more details. You can also provide feedback.

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Moses Johnson is the Editorial Director of GeeksChalk.com, who has a keen eye for news, rumors, and all the unusual stuff around Apple products. Moses is commonly referred to online as The Professor, with decades of experience in tech under his belt.
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