FIRMWARE DETAILS

iOS 15.1

Build: 19B74Oct 25, 2021Restore IPSW

Stable

View details

Filename: iPhone14,3_15.1_19B74_Restore.ipsw
File size: 6.63 GB
File type: Restore IPSW
Download host: updates.cdn-apple.com
Link availability: Not verified
Source did not report availability
Last link check: Not checked
SHA-256: 8d91dbc5091ea6e31953141822cae6c52c7941cd9c6f33a735fc0e3630ba9087
SHA-1: 5cee8b9c87a29770d024d5d52b33cdb5084e3a9a
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 13 Pro Max iPhone14,3IPSW.me public API retrieval · Oct 22, 2026, 4:29 PM UTC

Unsigned

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

IPSW.mehttps://api.ipsw.me/v4/device/iPhone14%2C3?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 4c52c6959831edbbd06ec635e2a61a42