 <p>Note that <strong>armv6</strong> was deprecated when iPhone 5 go out.</p> <blockquote> <p><strong>Xcode 4.5</strong> doesn't permit you to buil an ipa for armv6 devices (iphone 3G), only for armv7 and armv7s.<br> And <strong>Xcode &lt; 4.5</strong> doesn't permit you to build an armv7s... How you can made it all toghether?</p> </blockquote> <p>The sync error come on iphone 3G? If yes, it's normal, your ipa is not compatible with this phone...</p>