iOS 11.3.1

iOS

Version

11.3.1

Build ID

15E302

File Size

675.9 MB

Release Date

2018-04-24T17:09:30Z

Update Type

Normal release

Delta update - requires 11.2.6 installed first.

Download OTA

Looking for beta firmware? View beta builds for iPhone X (Global) →

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 675.9 MB. This is a delta (partial) update that requires 11.2.6 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 8f66b24461d78217159d0b9ec95614d827c0f99f.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/ios/091-78004-20180419-C2F28A04-4046-11E8-9930-ACC0FBE594B0/com_apple_MobileAsset_SoftwareUpdate/8f66b24461d78217159d0b9ec95614d827c0f99f.zip