iPhone 12 · iPhone13,2

iPhone 12 · iOS 17.3.1

21D61Unsigned

Catalog data · Last updated: Oct 23, 2026, 11:21 AM UTC

Restore IPSW for iPhone 12: iOS 17.3.1, build 21D61.

Firmware information

Version: iOS 17.3.1
Build: 21D61
IPSW: Restore IPSW
Size: 7.29 GB
Release date: Feb 8, 2024, 7:54 PM UTC
File name: iPhone13,2,iPhone13,3_17.3.1_21D61_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_17.3.1_21D61_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-256be6d3de69a1dc43c83b8de6d98e46a0bd62ced799d5582f42a446991de2cbbb5

SHA-136a7b979958c858c8b77947e94d38caa364aa0e4

MD5060e9e406fda702fa0bbfbcba1be1875