I restored my iPhone 4s yesterday on my computer and it went through with no problems.
Today when my iPhone crashed and I tried to restore it again - I keep getting the message "This device isn't eligible for the requested build". Nothing has changed from yesterday - so I don't know why it was OK then but not now...
I've worked through the apple suggestions - no problems with the hosts file, no third party security software, firewall off, etc I've even tried it on another computer and I'm still getting the same message. It fails after the software is extracted (i.e. at the end of the first stage after I press restore) and it tries to verify with Apple...
Last bit of the restore log:
[11:33:28.4130] failed to personalize the restore bundle: This device isn't eligible for the requested build.
[11:33:28.4136] AMRAuthInstallDeletePersonalizedBundle
[11:33:28.4313] Restore completed, status:3194
[11:33:28.4313] Failure Description:
[11:33:28.4313] Depth:0 Error:Failed to copy auth install options in DFU mode.
Could the fault be on the Apple server side rather than mine or are there other things I should be trying?