FIRMWARE DETAILS

iOS 26.3.1

Build: 23D8133Mar 4, 2026Delta OTA

Stable

View details

Filename: 2937526b927945a73cd6ceb81d750bd710c1b9be2e1df3c6ee1e9fe005196e14.aea
File size: 5.70 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: 753a02231565caa594598239f3559948914d070739c68cb02ae5bb04e7bf589e
SHA-1: 11f4f71baf66bd90fdc9e78abf0f737d39c2d1c0
Required starting builds: 21F101, 21F79, 21F90
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 14 Pro Max iPhone15,3

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, 6:25 PM UTC
Record fingerprint: d48da896f63809bf3a31e9d1728e206a