iOS 11.3.1

iOS

Version

11.3.1

Build ID

15E302

File Size

774.21 MB

Release Date

2018-04-24T17:10:46Z

Update Type

Normal release

Delta update - requires 11.0.1 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 6s, released on 2018-04-24T17:10:46Z. The update package is 774.21 MB. This is a delta (partial) update that requires 11.0.1 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 b8cccdd9f0d8404eebecac6fefe748def38f02f1.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/ios/091-78317-20180419-A18DC50E-40D7-11E8-8AED-E1F7C3535ADC/com_apple_MobileAsset_SoftwareUpdate/b8cccdd9f0d8404eebecac6fefe748def38f02f1.zip