iPhone 12 · iPhone13,2

iPhone 12 · iOS 17.1.1

21B91Unsigned

Catalog data · Last updated: Oct 23, 2026, 1:34 AM UTC

Restore IPSW for iPhone 12: iOS 17.1.1, build 21B91.

Firmware information

Version: iOS 17.1.1
Build: 21B91
IPSW: Restore IPSW
Size: 7.32 GB
Release date: Nov 8, 2023, 6:58 PM UTC
File name: iPhone13,2,iPhone13,3_17.1.1_21B91_Restore.ipsw
Download host: updates.cdn-apple.com

IPSW download

Check the model and signing status before downloading.

Download IPSW

Download hostupdates.cdn-apple.comiPhone13,2,iPhone13,3_17.1.1_21B91_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-25686f640f34d4f6a02d35c903b44bcd85e08520532c9966cb910e14131bffa6e02

SHA-16853f357c457f49e614cb4695eac018eafa94e1e

MD564cd57a5f0af03174ce21b8427a25a1c