How to Fix Error “This device isn’t eligible for the requested build” in iTunes?

The iTunes error “This device isn't eligible for the requested build” might occur on your screen when users are trying to update their iPhone, iPad, or Mac. Usually, this error occurs when your device cannot access Apple update servers. This error might be followed by following error codes on your screen:
  • Error 1639.
  • Error 3194.
  • Error 17.
  • Or Error between 3000 and 3020.
Causes of “This device isn’t eligible for the requested build” in iTunes

There might be several causes of this error, but generally, it occurs because some necessary updates cannot be installed due to available iTunes updates, weak internet connection, or some other issues which can be solved easily.
Here we provide you with a few simple methods which help you in fixing this iTunes error “This device isn't eligible for the requested build.” But before starting the process, we suggest you follow all the methods in a given sequence to avoid errors, and it also takes less time.

Steps to Fix Error “This device isn’t eligible for the requested build” in iTunes

To fix this error, try using the below-given different methods for updating iTunes on your Mac, iPhone, or iPad. Here how to fix it:
Method-1: Update iTunes on Mac, iPad, or iPhone
  1. Firstly, launch the iTunes app.
  2. Then, click on the iTunes option located on the top right side of the menu bar.
  3. Next, click on the “Check for Updates” option.
  4. In case, if there are any latest updates, then iTunes will offer you to download them by delivering you a message: “A new version of iTunes (number of versions) is available. Would you want to download it now?”
  5. After that, click on the “Download iTunes” to install them.
Once the update is successfully installed, again, you should have to update your device. But if you still receive the same error “This device isn't eligible for the requested build,” then we suggest you try the next method. 

Method-2: Properly Check the Hosts File

This method is quite difficult, but it sure helps you n fixing the iTunes error “This device isn't eligible for the requested build” from your device. Just ensure that you follow the given steps in an exact sequence. Here how to do it:
  1. Navigate to the Applications > Utilities.
  2. Then, click on the Terminal option to open it.
  3. Now, copy and paste the following command into the terminal:
  • sudo nano /private/etc/hosts
  1. Hit the Return option key; then the Terminal will deliver you a warning message:
  • Improper use of the sudo command could lead to data loss…
Note: This means you should follow all the instructions carefully to avoid any possible damage or data.
  1. After that, click o enter your System Password and press the Enter key.
  2. Now, search for the “” entry.
  3. If you find it, add # and Space to the beginning of the entry.
  4. Click on the Control-O to save all the changes.
  5. Once a request for any file name appears on your screen, then click on the Return tab.
  6. At last, click on the Control-X tab.
  7. Finally, reboot your Mac, iPhone, or iPad.  

Marshall Lyne is a self-professed security expert; he has been making the people aware of the security threats. His passion is to write about Cybersecurity, cryptography, malware, social engineering, internet and new media. He writes for Norton security products at