Fix iTunes Invalid Response When Connecting iPhone/iPad

Powerful as iTunes is, there are still some annoying problems occur every now and then, for example, unexpected crashes and freezes, iPhone/iPad restore issues, and variety of errors when connecting iPhone or iPad to iTunes. And one of the connection errors that frequently occurs is iTunes invalid response error.

How to Fix iTunes Invalid Response Error
iTunes Error: Invalid Response from iPhone

This usually happens to those users who just updated their iPhone 7/6s/SE/6/5s or earlier iPhone model to new operation system ( iOS 10.3.3, 10.3.2 or iOS 11 betas) or who updated iTunes software on Mac/PC recently. And iTunes says: “iTunes could not connect to the iPhone because an invalid response was received form the device.” So how to fix iTunes invalid response when connecting to iPhone 7/6s/SE/6/5s/5? Read this article and you’ll get some basic steps to solve this problem.

How to Fix iTunes Invalid Response from iPhone/iPad

1. Check your USB connection

The most common reason lead to iTunes “Invalid Response” is the USB connection issue, therefore, you can firstly check your USB cable with the following ways:

  • Directly plug your iPhone into a USB port on your computer.
  • Use the original USB cable of you iPhone.
  • Try a different USB port on your computer.
  • Plug into a different computer.

2. Check for iTunes software updates

If you are sure that there is nothing wrong with USB connection, you can check if new version of iTunes is available (currently the latest iTunes version is 12.5.5).

For Mac users: open iTunes > choose iTunes from the menu bar at the top of your computer screen> Check for Updates.

How to Update iTunes Software
How to Update iTunes Software

For Windows users: open iTunes > click Help in the menu bar at the top of the iTunes window > Check for Updates.

3. Restart your iPhone and computer

In most cases, a restart can wipe away the current state of the software. You can restart your iPhone and computer and then open iTunes to check if the “Invalid Response” error still exists.

4. Check issues with third-party security software

Sometimes, security software created by companies other than Apple can prevent iTunes from connecting to your iPhone. In this case, you can check your hosts file to make sure that it’s not blocking iTunes from communicating with Apple’s servers. If it is the security software on your computer that interferes with your computer’s connection with iTunes, you can temporarily uninstall the security software to fix iTunes invalid response.

If you know better solutions to fix “iTunes could not connect to iPhone because an invalid response was received from this device” error, inform us via comment and your kindness will be great appreciated.

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