Hey I am trying to install beta 4 and I have already installed 8.2 itunes without any issues on my mac. My UDID has been added to a developers account, but when trying to update even though it checks with apple several times and passes that test, like 3/4 of the way through it comes up with error "6". It saids iphone could not be restored, an unknown error occured. Any way I can get past this? How do I do it? Please Help.