FIRMWARE DETAILS

iOS 16.3.1

Build: 20D67Feb 13, 2023Restore IPSW

Stable

View details

Filename: iPhone13,4_16.3.1_20D67_Restore.ipsw
File size: 6.54 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: d7c55365b3e10ab6fc4331e3f926c75dc623c443197180aec23527a605c9878f
SHA-1: f52fd36964ddf29c25f364f7068a8b3a49616b96
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 12 Pro Max iPhone13,4IPSW.me public API retrieval · Oct 23, 2026, 7:24 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: e8a0ea7dff298dca9d3957514f97cdd0