Earlier today, Apple dropped iOS 5 Beta 4 with OTA updates to the developers. Unluckily, for those with jailbroken iPhones on iOS 5 Beta 3, this simply won’t work as confirmed by @MuscleNerd himself in a recent tweet. He said:
The 5.0b4 OTA update won’t work on JB devices due to an explicit check of /Applications..almost like a present from Apple
Fortunately, you can still download iOS 5 Beta 4 firmware from your Apple developer account and restore it on your device using the same old iTunes way. Meanwhile, MuscleNerd has just tweeted that Redsn0w 0.9.8b4 has been released which can jailbreak beta 4 of iOS 5 on iPhone 4 / 3GS, iPad & iPod Touch.
Read the entire article here:
Jailbreak iOS 5 Beta 4 On iPhone 4 / 3GS, iPad & iPod Touch With Redsn0w 0.9.8b4 [Guide] | iThinkDifferent.