Before iOS 12 officially comes to us it must go through a series of beta versions, especially the iOS beta 1 to 2, but there are some users, who want to have a first contact with the new functions and features of the new iOS 12, help the company to detect and solve possible failures before the public version. In addition, application developers often download iOS 12 beta versions to test their applications on it, so that when the iOS 12 public version launches to all users, it works in the best possible way, free of errors, failures and problems.
The iOS beta 1 to 2 are usually quite unstable, especially in the early stages of development, there are often problems with many applications, for example, there are usually problems with both performance and battery life. To review the new iOS 12 beta may be fine, but if we often use our iPhone or iPad with iOS 12 beta, it is most likely that these inconveniences bother us enough, even making us wish we had not installed the iOS 12 beta.
Luckily, Apple allows us to uninstall iOS 12 beta and downgrade to the newest iOS public version, even without losing data and settings, we can continue using the latest stable version without problems.
In order to perform this process, the first thing we must do is download the latest iOS public version, which is still being signed by Apple, from this link. On this website we must select the device we use and the version of iOS that we want to install, but we must ensure that it is a version that appears in green, otherwise, iTunes will not let us install it as it is not officially supported.
Once the latest version of iOS has been downloaded (it will be downloaded as an ipsw file), the next step will be to connect our iPhone or iPad to computer and open iTunes, making sure it detects it correctly. Now, in the summary screen of our device, we will press the “shift” key on our keyboard while clicking on the “Search update” button.
A window of the Windows Explorer will open from which we should look for the file that we have downloaded in the previous step. We select it and iTunes will recognize it and load it into the program to install it on our iPhone or iPad.
Then click on “Update” and that’s it, now we only have to wait for the update process to finish, a process that may take a long time.
When finished, our device will have installed the latest iOS public version, but before using it normally it is recommended that we perform some additional tasks.
In addition to manually downgrade iOS 12 beta, you can also try a third-party software which is called iOS System Recovery, it can help you repair all kinds of iOS problems and revert to the latest iOS stable version.
Step 1. Download and install iOS System Recovery on your computer(Win/Mac), launch it and select “Standard Mode”.
Step 2. Follow the tips to put your device into DFU Mode.
Step 3. To be able to uninstall iOS 12 beta to the stable iOS version, the program will need to download the latest version of iOS first.
Step 4. Once the firmware is downloaded. iOS System Recovery will automatically begin installing the iOS system. After it is complete, the iPhone or iPad will restart in normal mode and you can begin using with the latest stable iOS.
Most likely, if we have installed a beta version of iOS we have done it through a certificate, both beta user and developer. Therefore, to prevent our iPhone or iPad from continuing to try to install the beta versions, it is recommended to delete this certificate.
To do this, we go to the Settings> General> Profiles section, by clicking on the Beta user profile, uninstall it from the device.
Once this is done, our device should work again as it did before updating. Normally there are usually incompatibility problems, although they may appear for some reasons, so, if you have problems (restarts, locks, malfunction, etc), it is best to make a backup in iTunes or iCloud and completely restore our iPhone or iPad.
Once returned to the factory settings, we can restore the copy so that everything goes back to normal.