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Hosted Exchange How To

How-To: Downgrade iPhone OS 4 to iPhone 3.1.3

Today we are going to cover how to successfully downgrade the iPhone from OS 4 beta (iPhone 4.0) back to iPhone 3.1.3. If you're a small developer who installed the iPhone OS 4 beta then realized you had to troubleshoot problems for an existing app under 3.1, it can sometimes come down to this or having to quickly go shopping for a second iPhone or iPod touch. Luckily, downgrading can be done pretty easily a majority of the time, even though things sometimes go downhill, like DFU loops, errors, etc.. We will cover these scenarios right now and hopefully get a lot of people where they need to be.  I'll show you two ways to downgrade, through XCode (Mac only) and through iTunes (Mac and PC).

And as always, if you are even a little scared you may mess up your phone during this process, stop right now.  What you do to your phone is always on you.  These guides are there for your convenience, but we hold no responsibility for any bricked iDevices of any kind.

If that didn't scare the pants off of you, hit the jump for screenshots, a written walk-through, and a video!

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How To: Choose and Set Up Hosted Exchange on iPhone ActiveSync

For most of us today, email is a major part of our lives. Whether it be for business or personal reasons, one thing we all look for in an email service, especially if we are paying for it, is reliability. So what if you're not having the best of luck with Apple's MobileMe service or any other IMAP alternatives? Maybe it's time to consider a hosted Exchange account. Not familiar with Exchange? Then be sure to check out Rene's excellent article from a while back, Walkthrough: Exchange ActiveSync On Your iPhone 2.0. That article can give you a great understanding of exactly how Exchange works on the iPhone.

Don't have a corporate solution or your very own Exchange server, though? No problem! I'm going to be giving you some very reliable hosted Exchange services as well as some tips on getting it up and running for the flawless email you have been seeking!

More after the jump!

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