iPhone Problems

How to Fix iOS 12 Won't Install on iPhone/iPad

iOS 12 has added to the excitement of iPhone / iPad users. The features of this operating system are just too awesome for the users to experience it. The speed, swipe and everything in this version is just too perfect for the iPhone lovers. With this, the users might eagerly want to update the iOS 12. But, it might happen that they might get errors such as "An Error Occurred Installing/Downloading iOS 12" or iPhone 6 not updated by iOS 12. Sad? Need not be! Here, we come with the solution for this problem "cannot install iOS 12".

ios 12 update failed

If you are updating to iOS 13 and running into an error occurred installing iOS 13, check how to fix unable to update iOS 13.

Way 1: Check iOS 12 Compatibility

iOS 12 might not be compatible with all the devices. However, it is compatible with all the devices on which currently iOS 11 is running. So, if your iPhone/ iPad is reasonably new one, it is quite likely that the iOS device will be compatible with iOS 12. Also, if your device is too old, there are high chances that the device would be unable to install iOS 12.

list of ios 12 compatible devices

Way 2: Update and Install iOS 12 with iOS Downgrade Tool

iOS Downgrade Tool is a one-click process for updating the iOS 11 to iOS 12. It auto detects the firmware required for the device to update it to latest iOS versions. Another good part of this software is that, there is no data loss during the upgradation of the OS. This tool is quite easy to operate. Following is the step by step guide for the Apple users to update their devices to the latest iOS version:

Step 1: Download and install iOS Downgrade Tool and connect your Apple device to the computer via USB cable.

connect to pc via usb

Step 2: Once connected, out of two available options click on the “One-click to Upgrade iOS” on the left side of the screen.

click upgrade ios

Step 3: Now, you simply need to feed your device information including the name of the device, device model, iOS version. Further, the firmware package compatible with your device will automatically be listed on the interface. You just need to select the target version to which you wish to upgrade and click on the “Download” button besides it.

download firmware package

Also, if you already have a firmware package saved in your computer, click on "Import" button and then "Select" button to import.

import firmware package

Step 4: This process of downloading would take a few minutes. When completed, click “Upgrade Now” to start upgrading.

upgrade ios version

Way 3: Check Available Storage on your iPhone and iPad

One shall ensure that there is enough storage on the iPhone/iPad if unable to install iOS 12. If not, one shall delete the unwanted data or backup the data and release some space to enable updating of the iOS device. For this, the availability of the free space shall be checked as follows:

Step 1: Go to “Settings”.

Step 2: Go to “General” tab.

settings general tab

Step 3: Finally, tap on “[Device] Storage”. You will see the space used and available space.

iphone storage free space

The screen would not only display the availability of space but it also gives you the options to free the space on the device like offload unused Apps, optimize photos, etc. When you free the data by enabling these options you neither lose any data nor the quality of data is compromised.

Way 4: Check Network Setting

Another issue why one is unable to install iOS 12 can be bad network. The update requires a very good internet connection. It will need steady WiFi. In case the connection is poor one shall reset network settings as follows:

Go to Settings - General - Reset - Reset Network Settings.

reset network iphone

With this one can reset WiFi networks and passwords, cellular settings, etc. and ensure that you have a good internet connection.

Way 5: Force Restart iPhone or iPad

This method differs for different models of Apple devices. The steps for different iPhone devices are as follows:

iphone force reset

Force Restart for iPhone X/8/8 Plus

1. Press and quickly release the Volume Up button.

2. Press and quickly release the Volume Down button.

3. Press and hold the side button until you see the Apple logo. Do not release the side button if the screen goes black but keep holding the button until you see the white Apple logo on your screen.

Force Restart for iPhone 7/7+

1. Press and hold both the Sleep/ Wake and Volume down buttons simultaneously for at least 10 seconds.

2. Continue holding the buttons until Apple logo appears on the screen.

3. Once the logo appears, release the buttons and phone will restart.

Force Restart for iPhone 6 and earlier devices

1. Press and hold the home and lock buttons simultaneously.

2. When you see the Apple logo on the screen release the buttons.


The users shall now experience the latest version of iOS with no obstacles and have no complaint that the iPhone cannot install iOS 13/12. iOS Downgrade Tool has removed all the hurdles regarding errors while downloading the new operating system and made it more enjoyable and easily accessible for the users. So, all the iPhone and iPad users, can experience and enjoy the latest iOS 12!