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.
Step 4: Once the process is done, connect your i Phone to PC and open i Tunes.
Then you will see "An update to the carrier settings on your i Phone is available" message, and click "Update Settings".
Jailbroken i OS firmware can run riot accessing different parts of the filesystem usually only reserved for apps and system components.
If a tweak you were using has been storing data in an unorthodox place, and you create a backup of this data, when you restore the phone you might never be able to access (or delete) said data again.
There are a few reasons for this, one of which is that if you’re making a warranty claim it’s possible for Apple to tell that your device was jailbroken once some evidence of the jailbreak has been copied back to the freshly restored phone.
If you’re not making warranty claims, you still might want to hold off creating a backup.
You can restore i Phone/i Pad without updating on your i Device, just follow the steps below: Step 1: Connect your device to PC, but ensure you have created a backup in i Tunes.
Then go to "Summary" Reset” then select “Erase All Content And Settings” and confirm your choice.
Step 1: Connect your i Phone to your computer with USB. Step 4: Turn off your i Phone by holding down the Lock button and then slide the slide to power down your i Phone.
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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.