iPhone XS · iPhone11,2

iPhone XS · iOS 17.3

21D50Unsigned

Catalog data · Last updated: Oct 23, 2026, 5:50 AM UTC

Restore IPSW for iPhone XS: iOS 17.3, build 21D50.

Firmware information

Version: iOS 17.3
Build: 21D50
IPSW: Restore IPSW
Size: 7.1 GB
Release date: Jan 22, 2024, 6:59 PM UTC
File name: iPhone11,2,iPhone11,4,iPhone11,6_17.3_21D50_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_21D50_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-2568e6f97db6badae6e3043cf104b3decc9cc3682cdb15097bb1bd13a4dfea6821d

SHA-1fc57f19e5cb232d8f5b908afb63d5565641e0138

MD5a5be84c0fbf8df554ba0f19ceeb12dc0