iOS 11.2.1

iOS

Version

11.2.1

Build ID

15C153

File Size

393.53 MB

Release Date

2017-12-13T18:11:02Z

Update Type

Normal release

Delta update - requires 11.1.1 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 8 (GSM), released on 2017-12-13T18:11:02Z. The update package is 393.53 MB. This is a delta (partial) update that requires 11.1.1 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 b49c30f7cc63a42eb5ad051cf09f86527fbc646d.zip.

Direct URL

http://appldnld.apple.com/ios11.2.1/091-55219-20171213-F2F4E086-DE20-11E7-B7E9-023A96F5E937/com_apple_MobileAsset_SoftwareUpdate/b49c30f7cc63a42eb5ad051cf09f86527fbc646d.zip