iOS 11.2.1

iOS

Version

11.2.1

Build ID

15C153

File Size

410.94 MB

Release Date

2017-12-13T18:11:05Z

Update Type

Normal release

Delta update - requires 11.1 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 2017-12-13T18:11:05Z. The update package is 410.94 MB. This is a delta (partial) update that requires 11.1 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 68ddf45852beca6632f3e80dc9ecc69adf5092d3.zip.

Direct URL

http://appldnld.apple.com/ios11.2.1/091-54682-20171213-04FE79F6-DE01-11E7-9947-E0ECFB2783B2/com_apple_MobileAsset_SoftwareUpdate/68ddf45852beca6632f3e80dc9ecc69adf5092d3.zip