FIRMWARE DETAILS

iOS 15.6

Build: 19G71Jul 20, 2022Restore IPSW

Stable

View details

Filename: iPhone13,4_15.6_19G71_Restore.ipsw
File size: 6.53 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: 96d7628f9dfec9b71a4ea06e1197d9fdc3954dd134146eed2b8e524708106e8c
SHA-1: a09cad27eb661c94979273d138f70aec5e747327
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 12 Pro Max iPhone13,4IPSW.me public API retrieval · Oct 21, 2026, 5:13 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/iPhone13%2C4?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 3c0bd30f645ce58fae5b1e382a0d25a6