iPhone 12 · iPhone13,2
iPhone 12 · iOS 15.3.1
19D52UnsignedCatalog data · Last updated: Oct 22, 2026, 4:15 AM UTC
Restore IPSW for iPhone 12: iOS 15.3.1, build 19D52.
Firmware information
IPSW download
Check the model and signing status before downloading.
Download IPSWDownload hostupdates.cdn-apple.com
iPhone13,2,iPhone13,3_15.3.1_19D52_Restore.ipswThe catalog marks this build as unsigned. A normal restore may not be accepted.
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-256
a61da3258712c5524c868c1e4fc388ed8ae49446f44916c18765475610a5f44aSHA-1
b0d1050ec4cfc4c7556d86fdb2144948cfaeffe7MD5
4977e9335bf2640c0851edd496d4935f