iOS 11.2.1

iOS

Version

11.2.1

Build ID

15C153

File Size

451.01 MB

Release Date

2017-12-13T18:11:04Z

Update Type

Normal release

Delta update - requires 11.0.1 installed first.

Download OTA

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About This Update

iOS 11.2.1 (build 15C153) is an official Apple over-the-air update for the iPhone X (GSM), released on 2017-12-13T18:11:04Z. The update package is 451.01 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 908afd53abe4a42a8903ad164207ba1ad695a921.zip.

Direct URL

http://appldnld.apple.com/ios11.2.1/091-54746-20171213-E940D790-DE05-11E7-81F6-80F2FB2783B2/com_apple_MobileAsset_SoftwareUpdate/908afd53abe4a42a8903ad164207ba1ad695a921.zip