iOS 11.2.1

iOS

Version

11.2.1

Build ID

15C153

File Size

504.62 MB

Release Date

2017-12-13T18:13:57Z

Update Type

Normal release

Delta update - requires 11.0.3 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 2017-12-13T18:13:57Z. The update package is 504.62 MB. This is a delta (partial) update that requires 11.0.3 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 0ff441bdc554c651987b7a9c530cb6cc04eb8811.zip.

Direct URL

http://appldnld.apple.com/ios11.2.1/091-55047-20171213-A1E61C5C-DE23-11E7-BF48-F52EF6A180E7/com_apple_MobileAsset_SoftwareUpdate/0ff441bdc554c651987b7a9c530cb6cc04eb8811.zip