iPhone XS · iPhone11,2

iPhone XS · iOS 17.3.1

21D61Unsigned

Catalog data · Last updated: Oct 23, 2026, 9:37 PM UTC

Restore IPSW for iPhone XS: iOS 17.3.1, build 21D61.

Firmware information

Version: iOS 17.3.1
Build: 21D61
IPSW: Restore IPSW
Size: 7.1 GB
Release date: Feb 8, 2024, 7:54 PM UTC
File name: iPhone11,2,iPhone11,4,iPhone11,6_17.3.1_21D61_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_17.3.1_21D61_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-256969da1332aae395c7fb65c74a228ea204cca31516d0e0adf31178612d7c07828

SHA-13208047a48c2d0cec9978aee86d2837655fe9628

MD5f5c37065a37ae5464ab44cf983a8b3a7