Download iOS 11.2.1 (15C153) for iPhone X (Global) / IPSW Downloads

✗ This firmware is not signed. This means you cannot restore to it in iTunes.

Release Date	13th December 2017
Upload Date	10th December 2017
Filename	iPhone10,6_11.2.1_15C153_Restore.ipsw
Filesize	2.96 GB
SHA256sum	`d91cfa66eedda82c9284a5e5bd361bbccb624c1285bfdf316cda8dce6f71a724`
MD5sum	`aea307e1421b616bd5c3607240ba5b29`
SHA1sum	`16bb3a030157cfde5dce3c5af1682531cac802eb`
Identifier	iPhone10,3

Download (2.96 GB)

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Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 11.2.1 fixes bugs including an issue that could disable remote access to shared users of the Home app.

For information on the security content of Apple software updates, please visit this website: