iOS 11.2.1

iOS

Version

11.2.1

Build ID

15C153

File Size

315.43 MB

Release Date

2017-12-13T18:12:06Z

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 5s (Global), released on 2017-12-13T18:12:06Z. The update package is 315.43 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 28c185294e0b15d292e0b11e11f7a102a0e8a5dc.zip.

Direct URL

http://appldnld.apple.com/ios11.2.1/091-54672-20171213-AA21A436-DE00-11E7-BDCF-DBE7FB2783B2/com_apple_MobileAsset_SoftwareUpdate/28c185294e0b15d292e0b11e11f7a102a0e8a5dc.zip