An invalid response was received from the device?

For at least the past year, I haven't been able to sync my phone with iTunes. It either freezes, or, recently, has been giving me an "Invalid response blah blah" error. I made two threads to no response. Does anyone know how to fix this? Can Apple make software that isn't complete ****?

iPhone 4S, iOS 6.0.2

Posted on Jun 24, 2013 2:31 PM

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Question marked as Top-ranking reply

Posted on Jun 30, 2013 7:59 PM

From this support document http://support.apple.com/kb/TS3694


iTunes cannot connect to the iPhone because an invalid response received from the device

This error occurs when there are problems communicating through USB. This may be resolved by following the steps for errors 13 or 14 above.


Error 13, 14, 35 and 50 (or -50)

These errors are typically resolved by performing one or more of the steps listed below:

  1. Perform USB isolation troubleshooting, including trying a different USB port directly on the computer. See the advanced steps below for USB troubleshooting.
  2. Put a USB 2.0 hub between the device and the computer.
  3. Try a different USB 30-pin dock-connector cable.
  4. Eliminate third-party security software conflicts.
  5. There may be third-party software installed that modifies your default packet size in Windows by inserting one or more TcpWindowSize entries into your registry. Your default packet size being set incorrectly can cause this error. Contact the manufacturer of the software that installed the packet-size modification for assistance. Or, follow this article by Microsoft: How to reset Internet Protocol (TCP/IP) to reset the packet size back to the default for Windows.
  6. Connect your computer directly to your Internet source, bypassing any routers, hubs, or switches. You may need to restart your computer and modem to get online.
  7. Try to restore from another known-good computer and network.
120 replies

Feb 23, 2017 12:38 PM in response to Detrich

Detrich wrote:


Yes, but the re-download option only works if you've already downloaded that specific OS version in the past. As I stated in the post: All of those conditions imply that the OS was installed at one point on the machine.


So, if you happened to forget to download it or maybe skipped it, then Apple doesn't allow you to download it again- ever. Some customers may have very specific reasons for not being able to run the latest version of Mac OS X. Or, they don't update their machines for a reason. Or, they may have a need to download and run an earlier version of Mac OS X that -is- still supported for their hardware, but just not the latest version. And, what Apple has done is basically made it very difficult. Why would you need to go backward to an OS X that you never installed before?


Back in the pre-Mac OS X days You mean 2000 and earlier?, Apple made their entire OS library officially available in many different places on the internet- ie official Apple's web site, Apple's FTP sites, Apple's Hotline server (for those who remember those) etc etc. And, customers knew that non-supported OS versions are "non-supported," and that's fine... But, everything is so strict now. It's not as friendly and easy as before...


Sorry, but things and methodologies change. Apple does not allow you to downgrade to an OS you have never run before, but if you want to downgrade back to one of the ones you have, then you can do so.

Apple does not want people upgrading from a lower OS (like, say, Mavericks) to one of the intermediary ones that have been surpassed by a more current OS. So, they don't want to make Yosemite or El Capitan available for upgrade now that Sierra is out.

As for users that are still running on OS X Snow Leopard, Apple has provided a path via El Capitan in order for them to upgrade to Sierra.

http://www.apple.com/macos/how-to-upgrade/


Best of luck,


GB

Feb 23, 2017 12:17 PM in response to gail from maine

Yes, but the re-download option only works if you've already downloaded that specific OS version in the past. You must have at one point in time downloaded that specific version of Mac OS to your Mac via the App Store. Otherwise, you're forever locked out from downloading it ever- permanently. And, only the latest version is available.


So, if you happened to forget to download it or maybe skipped it, then Apple doesn't allow you to download it again- ever. Some customers may have very specific reasons for not being able to run the latest version of Mac OS X. Or, they don't update their machines for a reason. Or, they may have a need to download and run an earlier version of Mac OS X that -is- still supported for their hardware, but just not the latest version. And, what Apple has done is basically made it very difficult.


Back in the pre-Mac OS X days, Apple made their entire OS library officially available in many different places on the internet- ie official Apple's web site, Apple's FTP sites, Apple's Hotline server (for those who remember those) etc etc. And, customers knew that non-supported OS versions are "non-supported," and that's fine... But, everything is so strict now. It's not as friendly and easy as before...

Apr 20, 2017 3:20 PM in response to ChiefTolu

I had this problem too. My iMac is about 5 years old and wouldn't work with my new iPhone 5 due to an 'invalid response'. I upgraded to OS Sierra and it's running fine now. A bit of a ball-ache however is that i have found I've had to update numerous other apps in order for them to run properly with Sierra. For example I've had to update iMovies as the picture quality was terrible after Sierra was installed and also iPhotos no longer works (although Photos and Preview are fine and just as good). Definitely update to Sierra but be prepared for a bit of a nightmare when you find a string of other apps need updating. It's like fixing one problem only to create a series of mini-problems. All fixable but a lot of faffing about. Ironically these reasons were why I moved away from using PC's for media editing. Technology eh? Anyway hope this is in some way useful.

May 19, 2017 10:02 AM in response to ChiefTolu

After trying the steps listed and spending 4+ hours troubleshooting this error stumbled upon a fix that worked. The strange part is that I could backup my apps but not do a full backup.


Go to Settings > General > Reset > Reset Location & Privacy. Now when you connect to formerly trusted computers, the Trust alert will ask you whether you trust that computer. Click "Yes".

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