iPhone 12 Pro Max · iPhone13,4

iPhone 12 Pro Max · iOS 15.3.1

19D52Unsigned

Catalog data · Last updated: Oct 23, 2026, 3:04 AM UTC

Restore IPSW for iPhone 12 Pro Max: iOS 15.3.1, build 19D52.

Firmware information

Version: iOS 15.3.1
Build: 19D52
IPSW: Restore IPSW
Size: 6.19 GB
Release date: Feb 10, 2022, 7:12 PM UTC
File name: iPhone13,4_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.comiPhone13,4_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-2560854c7e389f58a14232cabdae01a2229c35ee1d80337b0f3ddabda3f5bd8f922

SHA-17247fdfbf5a1f45c70396abc0403834585ec4268

MD53860e594127ccd0dd6715c20f540f36c