Updating iOS 11.3.1 for iPhone, iPad

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Ngày cập nhật gần nhất: 15/4/2026

In this article, Mytour.vn will explore two methods to quickly and timely update to iOS 11.3.1 for your iPhone, iPad. Let's proceed with Mytour.vn in the following article.

Previously, we've discussed whether it's worth upgrading to iOS 11.3.1 along with the new features it brings. For those who have decided to update to iOS 11.3.1 for iPhone, iPad, let's explore either of the two methods below with Mytour.vn.

Guide to update iOS 11.3.1 for iPhone, iPad

To perform the iOS 11.3.1 upgrade on your phone, you can choose one of the following two methods:

1. Update iOS 11.3.1 for iPhone, iPad directly via OTA

This is the first method to help you update to iOS 11.3.1, with this approach, you can upgrade iOS directly on your iPhone, iPad. And the procedure is as follows:

Step 1 : From the home screen of your iPhone, you will select to access the Settings app, and then choose the General option as shown below.

Step 2 : Next, we will select the Software Update option, at this point, the system will check for updates and display information about iOS 11.3.1.

Step 3 : Now you will select the Download & Install option so the system will proceed to download the update to your iPhone, iPad and upgrade it.

The process of downloading this update will take a few minutes, you should choose a network connection with stable speed to download the iOS 11.3.1 upgrade as quickly as possible.

Step 4 : Once the download process is complete, the system will prompt you whether you want to update to iOS 11.3.1 immediately or not. Choose Install Now. The system will proceed to load data and restart the device to perform the process.

And when the process of updating iOS 11.3.1 for iPhone, iPad is complete, you will return to the main screen of your phone with a notification that your phone has been upgraded to iOS 11.3.1 as shown above.

2. Updating iOS 11.3.1 using iTunes for iPhone, iPad

This is the second option you can choose to use, which is upgrading to iOS 11.3.1 via computer through iTunes, and we do as follows:

Step 1 : You need to download and install the latest version of iTunes tool here: Download iTunes.

Step 2 : You continue to search and download the appropriate iOS 11.3.1 Firmware version for your device here: Download iOS 11.3.1 .

Step 3 : After the download process is complete, you will launch iTunes and connect your iPhone to the computer . Once your iPhone is detected, on the iTunes interface, we press select the device icon as shown below.

In case your iPhone is not detected, select the Trust notification on the iPhone screen.

Step 4 : Now to update to iOS 11.3.1 for iPhone, iPad via iTunes you will hold down Shift + Left Click on the Update option .

For those using MAC devices, you will need to hold down the Option key + select click on the Update option similarly to the image above.

Step 5 : Immediately after that, on the computer screen is a form requiring users to access the folder containing the downloaded iOS 11.3.1 Firmware file above. You select this iOS 11.3.1 Firmware file and confirm Update .

Step 6 : Press confirm Update for iTunes system to proceed with updating iOS 11.3.1 for iPhone, iPad on the computer through this tool.

Step 7 : This tool will quickly proceed to load data and restart your iPhone similar to how updating to iOS 11.3.1 above.

Note :

- During the process of updating to iOS 11.3.1 via iTunes, you need to ensure that the Internet connection and the connection between iPhone, iPad and the computer are stable.

- If you encounter errors during the iOS 11.3.1 upgrade process, you can refer to the article iOS 11.3.1 upgrade errors to troubleshoot and continue your update process.

So we've just gone through 2 ways to update to iOS 11.3.1 for iPhone, iPad that you can choose, apply to your iOS device, and experience the special features in this update version. In case you don't want to continue using iOS 11.3.1 anymore, you can refer to how to downgrade iOS 11.3.1 here to revert to iOS 11.3 versions.

https://Mytour.vn/cach-cap-nhat-ios-11-3-1-cho-iphone-ipad-22917n.aspx
In addition, you can also learn about the notable updates in this iOS 11.3.1 update version that Mytour.vn has mentioned in the article What's new in iOS 11.3.1 to get valuable information in this upgrade version.

Frequently Asked Questions

What are the two methods for updating to iOS 11.3.1 on iPhone and iPad?

The two methods for updating to iOS 11.3.1 on your iPhone or iPad include updating directly via OTA (Over The Air) through the device's settings and updating via iTunes on a computer. Each method has its steps to ensure a successful upgrade.

How can I update my iPhone to iOS 11.3.1 using the OTA method?

To update using the OTA method, go to the Settings app, select General, then Software Update. After the system checks for updates, select Download & Install. Once the download is complete, choose Install Now to finish the upgrade process.

What steps do I need to follow to update my iPad using iTunes?

To update your iPad using iTunes, first download and install the latest version of iTunes. Then, download the iOS 11.3.1 firmware for your device. Connect your iPad to the computer, select the device icon in iTunes, hold Shift (or Option on Mac) and click Update, then select the firmware file and confirm the update.

Is it possible to downgrade from iOS 11.3.1 back to a previous version?

Yes, it is possible to downgrade from iOS 11.3.1 to a previous version. You can find instructions on how to perform the downgrade in the relevant section of Mytour.vn's article.

What should I do if I encounter errors during the iOS 11.3.1 update process?

If you encounter errors while updating to iOS 11.3.1, it is recommended to refer to the article on iOS 11.3.1 upgrade errors for troubleshooting steps. This guide can help you resolve common issues and continue your update successfully.

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