iPhone 12 · iPhone13,2

iPhone 12 · iOS 17.1

21B74Unsigned

Catalog data · Last updated: Oct 23, 2026, 3:37 PM UTC

Restore IPSW for iPhone 12: iOS 17.1, build 21B74.

Firmware information

Version: iOS 17.1
Build: 21B74
IPSW: Restore IPSW
Size: 7.32 GB
Release date: Oct 25, 2023, 5:36 PM UTC
File name: iPhone13,2,iPhone13,3_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.comiPhone13,2,iPhone13,3_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-256bef9b6889892bf64fb91586773fb1484b47f3482714e9ae741f12f00c6608d8d

SHA-1b1ae7cb2e908d8300bd9f2b34ab1188971cb3a57

MD541a6ab9d0ee83342a1f37debdea3fb20