You do realize you've cut your credibility by about 90% with this comment, right? "I've just downgraded back to iOS 4." Care to elaborate how you did that?
As the release notes say: "Devices updated to iOS 5 beta can not be restored to earlier versions of iOS. Devices will be able to upgrade to future beta releases and the final iOS 5 software."
That's right, it's irreversible. (I can corroborate this.) So you've determined iOS 5 isn't ready for prime time (obviously, it's a beta), say it's very buggy but can't elaborate what the bugs are, and somehow managed to hack a way to downgrade your iPhone to iOS 4, even though it's not possible.
How rude. What's your problem?
If you are publicly calling me a liar, then you may want to rescind that comment. You have absolutely no idea who I am of course, but I'm a professional developer who is happy to post under my real name and not an alias, has worked with the iOS SDK since it originally launched and am proud of my reputation amongst my peers. I await your public apology.
You can corroborate all you like; I certainly didn't imagine downgrading to iOS 4 this morning...all I did was:
a) Download the iOS 4.3.3 restore IPSW
b) Open the Xcode organizer and restored my phone to using the ISPW
c) Launched iTunes to re-activate
d) Restored from the backup I took before I upgraded last night.
YMMV, naturally, but it worked for me no problem. Obviously, I had already investigated this and spoken to others to see what success they had in downgrading before proceeding.
My post was nothing more than a warning to those who were thinking about installing a buggy beta that isn't ready to be used on an everyday phone. Clearly, I can't go into specifics because unlike some developers on here, I prefer to respect the NDA that I agreed to.
EDIT: just to clarify, regarding downgrading, and to add to my YMMV statement above: I have only tested downgrading on an iPhone 4. Results on any other device may vary.
Last edited: