If you're Jailbroken and trying to get iOS 5 beta 4 via over-the-air (OTA) update, you just might be out of luck according to iPhone Dev-Team member MuscleNeard:
The 5.0b4 OTA update won't work on JB devices due to an explicit check of /Applications..almost like a present from Apple
they check to make sure /Applications is a real directory, which it isn't in a stashed jailbreak (not sure how unionfs would act)
Never underestimate the resourcefulness of the Jailbreak community, but if you want to try OTA now you'll likely have to restore to iOS 5 beta stock before proceeding.
Reader comments
iOS OTA updates don't work if you're Jailbroken
Does OTA spell the end for the iPhone Jailbreak?
I could be way off base here, but this seems like a good thing for jailbreakers. Every time there is an update, the devteam has to issue warnings to not update until they have a chance to investigate and develop a new jailbreak anyway.
This looks like Apple is actually trying to help jailbreakers to me. Apple could just issue ota updates 2 days after another exploit is released for the express purpose of killing the jailbreaks. I prettymuch figured any jailbreakers with any common sense would disable OTA updates anyway.
Dim
No big deal. Don't plan to OTA update. Prefer iTunes.