User GTech3752 over at the Mac Rumors forum has posted that he has found a way to trick Apple into letting you OTA update your jailbroken iOS 5 beta device. There is no confirmation either in the post or by myself that this works. It is rumored that a beta update is to be released today so, if that happens I will test out this “tweak”. So heres how it works.
Using ifile or SSH methods go to “system>library>coreservices”
Open and edit “SystemVersion.plist”
Add these lines if they do not exist…
Next simply respring or reboot.
Once an OTA update has been released you can test this out just as I will.