You may see this alert message: “A software update is required to connect to your iPhone” when you connect your iPhone 18 Pro or iPhone 18 Pro Max to your computer with a USB-C cable.
The popup message says:
“A software update is required to connect to your iOS device. Would you like to download and install this update now? Use of this software is subject to the original Software License Agreement(s) that accompanied the software being updated.”
This message means that older software on your Mac needs to be updated to support newer software on your iPhone 18 Pro or iPhone 18 Pro Max.
You need to click the Install button to download and install the software. However, some users report that downloading the update starts then they get this message saying “Installation failed. Can’t install the software because it is not currently available from the Software Update server”.
If you are experiencing this problem also, here is what you can do to troubleshoot:
- Disconnect your iPhone and connect it to your Mac again using a USB cable. If you see the “Allow accessory to connect?” alert on your Mac, click Allow. If you see the “Trust this Computer?” alert on your device, tap Trust. When you turn on and connect your device to a computer, it should appear in the Finder or in the Apple Devices app.
- Update everything. First try to update your Mac. To update your Mac, open System Settings > General, and then click Software Update. When Software Update opens, it automatically checks for new software. If new software is available for your Mac, click the Update, Upgrade, or Restart Now button to install it. Use Software Update settings to control which updates your Mac downloads or installs automatically. Update your iPhone by going to Settings > General > Software Update. If you are using a Windows computer, then ensure that you are using the latest version of the iTunes software. Use the Microsoft Store on Windows to get the latest version of any app that Apple offers for Windows, including iCloud, Apple Music, Apple TV, Apple Devices, and iTunes. The Microsoft Store then automatically keeps your software up to date, or you can open it and check for updates manually. If you installed certain older Apple apps for Windows, or used Boot Camp to install Windows on Mac, you also have Apple Software Update. To find it, use the search box in the Windows taskbar.
- Ensure that time and date preferences on your iPhone and your Mac or PC are set correctly. Make sure that your iPhone and your Mac is showing the correct time and date. You can have your iOS and Mac devices to adjust Date & Time settings automatically. Here is how:
- On your iPhone, go to Settings > General > Date & Time and turn on Set Time Automatically. Check to see if your device is showing your correct time zone. If a message says that updated time zone information is available, restart your device and any paired Apple Watch.
- On your Mac, go to System Settings > General > Date & Time. And check the box for “Set date and time automatically” box. Open Date & Time settings and make sure that the option to set time and date automatically, as well as the option to set time zone automatically, are both turned on. Restart your Mac.
- Your USB cable may cause this problem. Make sure that your cable is Apple certified. Try a different USB-C cable. You may also use a different USB port on your computer. Check your USB cable and connection. If your device doesn’t chime or vibrate when connected to your computer, unplug the USB cable and check the charging port for debris. Try another USB cable. The cable must support both data and charging.
- Resetting the System Management Controller (SMC) on your Mac can help resolve uncommon issues related to power, thermal management, or hardware behavior. You most likely do not need to reset the SMC. However, it may help resolve certain issues on Intel-based Mac computers.
- Reset NVRAM or PRAM on your Mac. The steps to reset NVRAM don’t apply to Mac computers with Apple silicon, and aren’t needed on those computers. Here is how:
- Shut down your Mac.
- Turn on your Mac, then immediately press and hold these four keys together: Option, Command, P, R.
- Release the keys after about 20 seconds, during which your Mac might appear to restart. For example, you might hear a startup sound more than once, or see the Apple logo more than once.
When your Mac finishes starting up, you might need to adjust any system settings that were reset.
