Today Apple released iOS 5 Beta4 and many people were trying to update it over the new feture which was enabled in it by Apple is OTA. Many people are facing problems from the OTA because he server is loaded and for those who got the Jailbroken iDevice won’t be able to update because MuscleNerd explains the matter of the OTA in iOS 5 Beta 4
The 5.0b4 OTA update won’t work on JB devices due to an explicit check of /Applications..almost like a present from Apple.
The reason is that Apple has blocked the explicit of /Applications in the OTA update which is preventing users to update with a Jailboken iDevice. So if you want to update to iOS 5 BEta 4, you must do a fresh restore on iOS 5 Beta 3 in order to use OTA or Directly Download iOS 5 Beta 4.