iPhone 6s · iPhone8,1

iPhone 6s · iOS 15.3.1

19D52Unsigned

Catalog data · Last updated: Oct 23, 2026, 6:20 AM UTC

Restore IPSW for iPhone 6s: iOS 15.3.1, build 19D52.

Firmware information

Version: iOS 15.3.1
Build: 19D52
IPSW: Restore IPSW
Size: 5.07 GB
Release date: Feb 10, 2022, 7:12 PM UTC
File name: iPhone_4.7_15.3.1_19D52_Restore.ipsw
Download host: updates.cdn-apple.com

IPSW download

Check the model and signing status before downloading.

Download IPSW

Download hostupdates.cdn-apple.comiPhone_4.7_15.3.1_19D52_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-256be85c83b2504d5103e4f6a6be2e3e039bfb12b27707919b27e6e9b906a93c062

SHA-1908884e9b7014a7161534c895fc649e9cd44508a

MD5b345fadb1ae50d25bf34b0acb1cc1438