iPhone XS · iPhone11,2

iPhone XS · iOS 14.3

18C66Unsigned

Catalog data · Last updated: Oct 24, 2026, 2:53 AM UTC

Restore IPSW for iPhone XS: iOS 14.3, build 18C66.

Firmware information

Version: iOS 14.3
Build: 18C66
IPSW: Restore IPSW
Size: 5.92 GB
Release date: Dec 14, 2020, 5:59 PM UTC
File name: iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_14.3_18C66_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,iPhone12,3,iPhone12,5_14.3_18C66_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-256cd08c22a4cc2e234b9fabd1dcd6e752b5eb689cad6afef0b8e44e2861cbaeed2

SHA-12938954dd34ecdd9aab2d10bae05524a3b634f4b

MD52087e626b6f7de85d1848adec262bb3c