iPhone XS · iPhone11,2

iPhone XS · iOS 17.1

21B74Unsigned

Catalog data · Last updated: Oct 24, 2026, 2:08 AM UTC

Restore IPSW for iPhone XS: iOS 17.1, build 21B74.

Firmware information

Version: iOS 17.1
Build: 21B74
IPSW: Restore IPSW
Size: 7.09 GB
Release date: Oct 25, 2023, 5:36 PM UTC
File name: iPhone11,2,iPhone11,4,iPhone11,6_17.1_21B74_Restore.ipsw
Download host: updates.cdn-apple.com

IPSW download

Check the model and signing status before downloading.

Download IPSW

Download hostupdates.cdn-apple.comiPhone11,2,iPhone11,4,iPhone11,6_17.1_21B74_Restore.ipsw

Back up before you restore. A restore can erase the data on the device. The identifier has to match, and a file you can download may still be rejected for restore.

Checksum

SHA-256a19e7f828257c5478cb43bdd23310153cb6081155098872aad3e0f4a72179580

SHA-1732f3ada4d7f71b2b73d89aeb7bc3f94490d8db8

MD53949f474f3ba873da79fafcca8b5b32d