Fix | This Device isn’t Eligible for Requested Build

by admin on May 9, 2011

Earlier today we got a question from one of our reader, regarding an error occurred during iOS 4.3.3 restore. “The iPhone could not be restored . This device isn’t eligible for the requested build.”wrong firmware

Solution :

    You may have downloaded the wrong firmware for your device. Make sure you have downloaded a correct firmware for your iDevice.

    Click this link ( on the computer you’re using to restore, if you get an Apple 404 page, it’s okay but if you get an index page, just like following screenshot, remove  from your host file and try to restore once again. 

    That’s it.


shiningjade May 14, 2011 at 3:14 pm

how could i downloaded the wrong firmware? i downloaded it directly for iTunes.

fabrizio May 17, 2011 at 10:45 pm

Hello, I got the index page, basically the same from the screenshot, any idea on how to remove the host file on mac os x?

Cyberghost May 29, 2011 at 7:13 am

This fixed my problem, thank you!!!

jp June 6, 2011 at 4:05 pm

Yes! i can confirm that this works 100% to get rid of the error, my iphone is now upgrading to 4.3.3 with no issues. Thanks for the info.

sajin June 10, 2011 at 12:26 am

what do you mean by this host file ?? where do i find it so that i can clear it…

Gerald June 10, 2011 at 9:37 am

i need help! i dont understand what to do.

shawn wyne June 13, 2011 at 9:31 pm

i have a general question and my others in the buissness are unavialble. i have the ios 5 on my iphone and i was supposed to add my device to their program how do i go about doing that im on the developers site but idk where to go or what to do please help me soon please

Louis June 20, 2011 at 3:22 am

what host file ?

hank June 27, 2011 at 9:49 am

how would I go about that exactly? haha. Thanks.

Henry Singh June 29, 2011 at 12:39 pm

I have an iPhone 3GS – 4.2.1 firmware, 5.12.01 Baseband and 6.04 Bootloader.

I did a hard reset of the phone and lost everything. This led me to create a custom firmware for 4.3.3 using pwnageTool, resulting in the error that you are describing: “This device is not eligible for the requested build.” I followed the information you have provided to remove from my hosts file. Now I get the 404 page.

The problem is that now I am getting a different error message: “The iphone could not be restored. An unknown error occurred (1600).” I have tried reinstalling iTunes but to no avail. I don’t have my Cydia blobs saved. Any suggestions?

Ricardo July 16, 2011 at 11:53 pm

how do I remove from my host file?

d4rth July 23, 2011 at 2:31 pm

thanks a lot, this works just fine!

Viktor July 26, 2011 at 11:20 pm

How to remove from the hosts file on mac os:

1) In Finder, use the “Go to folder” (shift+command+g), write “/etc”
2) Scroll down to the file “hosts”, open it in your favourite text editor (Textmate perhaps?)
3) Remove the line, save the file.
You might need to restart the computer.

1) Right-click on notepad and select “Run as administrator” (Windows 7 or Vista)
2) Open “C:\windows\system32\drivers\etc\hosts”
3) Remove the line, save the file, restart the computer.

Anonymous September 14, 2011 at 10:55 am

Hey viktor,
i tried removing line “” from my host file, but it says document “hosts” could not be saved.

i tried changing the permissions, but still same error.. its is not accepting the changes i made..

what next??

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