iOS 11.3.1

iOS

Version

11.3.1

Build ID

15E302

File Size

681.36 MB

Release Date

2018-04-24T17:09:30Z

Update Type

Normal release

Delta update - requires 11.2.1 installed first.

Download OTA

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About This Update

iOS 11.3.1 (build 15E302) is an official Apple over-the-air update for the iPhone X (Global), released on 2018-04-24T17:09:30Z. The update package is 681.36 MB. This is a delta (partial) update that requires 11.2.1 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 75e09b538f679d172eb4968c395f7c49172c8b5c.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/ios/091-78268-20180419-BE9D45A4-40BC-11E8-AE9A-35ECC3535ADC/com_apple_MobileAsset_SoftwareUpdate/75e09b538f679d172eb4968c395f7c49172c8b5c.zip