you need to put your phone into DFU mode. Hold sleep and home button until phone powers off. Keep holding home for around 10 seconds then release. You should see apple itunes logo.. Then connect to itunes and hit restore.
It isn't a bug. it has been removed. I see no reason in having an unlock sound. I know i'm unlocking the device since I am looking at it. It makes sense to hear a lock sound only since you aren't usually looking at the device when looking.
Download iOS 7 GM Direct from here: www.ios-hacks.com/2013/08/torrent-direct-download-links-for-ios-7-gold-master-beta-gm-version-for-ipod-ipad-iphone.html
Just got to know the iTunes 11.1 beta 2 currently only have Mac version available. For those who require iTunes 11.1 beta 2 on Windows; would recommend not to update to GM for now until the official version of iTunes 11.1 is available.
You know what I think? I believe apple is not doing ota, so, like someone had said before me "they can thin out the herd". Therefore many more will be anticipating anxiously for the official one to come out. Meaning there will be a huge number of those who upgrade on that day. Which will result in a big number, that apple can use on their next keynote to brag about the many ios device users who upgraded on that one day. :)