iOS 11.2.1

iOS

Version

11.2.1

Build ID

15C153

File Size

315.94 MB

Release Date

2017-12-13T18:13:58Z

Update Type

Normal release

Delta update - requires 11.1.2 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 6s+, released on 2017-12-13T18:13:58Z. The update package is 315.94 MB. This is a delta (partial) update that requires 11.1.2 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 c8662698fe2c1099eeb84a60c03dbfee9baa92c4.zip.

Direct URL

http://appldnld.apple.com/ios11.2.1/091-54894-20171213-468DE0DA-DE17-11E7-A6EC-F80CF6A180E7/com_apple_MobileAsset_SoftwareUpdate/c8662698fe2c1099eeb84a60c03dbfee9baa92c4.zip