iPhone 4s Recover from lost lockscreen password I have an iPhone 4s.  I've locked it and forgotten the passcode.  I don't have an iTunes backup to restore from.  When I go through the power+home button loop attached to iTunes and then ask it to "restore" it fails saying "This device isn’t eligible for the requested build".  Any idea how a I reset the phone.  I don't actually want to do an iOs update, but iTunes doesn't seem to give me any other option.
You don't.  You can only install a version of iOS that Apple is still signing.  For the 4S, that would be 9.2.1.