FIRMWARE DETAILS

iOS 18.3.1

Build: 22D72Feb 10, 2025Delta OTA

Stable

View details

Filename: 37fd5cafa195285cdbb2b477e81a64c586658fc177f593bee5d186680f7c64d5.aea
File size: 4.76 GB
File type: Delta OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 46f1b4c709adccd413677287dfeb75712046c2ae4ef74d2aa080805902be6614
SHA-1: b2526a06c5e39e843ff881a2bbbd523c5bf99c5e
Required starting builds: 21B101, 21B74, 21B80, 21B91
Board restrictions: Not reported

OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.

iPhone 15 Pro iPhone16,1

Unknown

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

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: 3aa1b12ab32d61552bc2075797d3a0f8