iPhone 12 · iPhone13,2

iPhone 12 · iOS 17.1.2

21B101Unsigned

Catalog data · Last updated: Oct 24, 2026, 9:39 AM UTC

Restore IPSW for iPhone 12: iOS 17.1.2, build 21B101.

Firmware information

Version: iOS 17.1.2
Build: 21B101
IPSW: Restore IPSW
Size: 7.32 GB
Release date: Nov 30, 2023, 6:28 PM UTC
File name: iPhone13,2,iPhone13,3_17.1.2_21B101_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_17.1.2_21B101_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-2564f07c04b40aea9f8d7c9c5e3611ed760ded33f5f58db4f444305891fcc36f245

SHA-18ee188c6b5ee5699023e4b0404624975d48b48b5

MD58cf90814987e931bd938b42b88ba9a0c