In order to enjoy the new features of iOS 12, many iPhone users have previously upgraded to iOS 12 beta. In order to speed up the speed of the old iPhone, many old iPhone users also choose to update to the iOS 12 beta. With the release and sale of the new iPhone XS, iPhone XS Max, iPhone XR, the official iOS 12 version will be available. Once the official iOS 12 release is released, many iPhone users have installed betas and they want to update to the official version of iOS 12. And this article is about how to update iOS 12 beta to iOS 12 official version.

It's different from the official iOS update, you can do it with just a few clicks on the iPhone, when the iPhone reminds you that your iPhone needs to be updated. From the beta version of iOS 12 to the official version of iOS 12, your whole iPhone device will be erased. So we need to do an iTunes backup before, and this is necessary. If you have made an iTunes backup before, do not overwrite it. Here is the guide about how to make multiple iTunes backups without overwriting previous iPhone backup.

1. If you have an iTunes backup with official version of iOS 11 that you made before installed iOS 12 beta.

If you completed the iTunes backup process, you need to put the iPhone into the Recovery Mode

a. Make sure you are using the latest version of iTunes

b. Connect your iPhone with the computer.

c. While your iPhone is connected, press and hold the Sleep/Wake and Home buttons at the same time (Side button and volume down on iPhone 7 or later). Do not release the buttons when you see the Apple logo. Keep holding until your iPhone or iPad enters Recovery mode.

d. Click the Restore option when it appears, It will ease the device.

You can set up your device from iTunes Backup after the recovery process is complete. Then the iOS 11 version of your iPhone will go back to your iTunes backup.

Finally, you can update to iOS 12 in your iPhone Settings -> General -> Update

2. If you don’t have the official version of iOS 11 backup before installing iOS 12 beta.

First you need to the beta Profile in iPhone. Go to iPhone Settings -> General -> Profiles -> iOS Beta Software Profile -> Remove Profile

Enter your passcode if prompted and tap Delete once more.

Put the iPhone into the Recovery Mode

a. Make sure you are using the latest version of iTunes

b. Connect your iPhone with the computer.

c. While your iPhone is connected, press and hold the Sleep/Wake and Home buttons at the same time (Side button and volume down on iPhone 7 or later). Do not release the buttons when you see the Apple logo. Keep holding until your iPhone or iPad enters Recovery mode.

d. Click the Update option when it appears, It will ease the device.

After the update process has finished, your iPhone will update to iOS 12 official.

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