Your reasons for restoring will vary, but one reason people often choose to get rid of their jailbreak is to install the latest (not yet jailbroken) version of i OS.
Unless you’re making a warranty claim or passing the phone on to someone who can use it on the network it is locked to, you might as well keep an eye on the jailbreak scene to ensure you can still use your phone once you’ve upgraded and re-jailbroken.
This is probably why most people don’t bother jailbreaking, but that’s a whole other article!
Unless you want a headache, battery problems or an i Phone that won’t even turn on, don’t simply attempt to upgrade over-the-air.
One way of potentially restoring your unlock is to save your SHSH blobs, which is what is used to authenticate your i Phone with Apple.
This process is only possible using a downgrade, which can be a fairly difficult operation to complete (Apple authenticates all new software installs using their own servers).
SHSH blobs are in the process of being phased out in favour of the tougher-to-beat APTicket.
Important: For this reason, you shouldn’t upgrade the software on your phone or restoring to stock if you depend on your jailbreak for an unlock.
You’ve had your fun flouting Apple’s restrictions, and now you want vanilla i OS back in all its glory.
Luckily the process is even easier than when you performed the jailbreak in the first place.
That’s not to say things don’t go wrong, and it might surprise you to learn there’s actually a “right way” to go about doing this.
Here’s how to remove your jailbreak and restore stock i OS to your i Phone, i Pad or i Pod Touch.