FIRMWARE DETAILS

iOS 26.4.2

Build: 23E261Apr 22, 2026Delta OTA

Stable

View details

Filename: 436c07bb9f42226c16d6e478aa443344418f4127e92af5df98b00b390d6f63f5.aea
File size: 5.44 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: 3b386d16001ee124b3364e9859e274639454e2f613e044d6fc197ce0983d7ead
SHA-1: 34a22ec4a26dd29200e99c9eb40d7e6b8721be9d
Required starting builds: 22H340, 22H351, 22H352
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 16 Pro iPhone17,1

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, 6:25 PM UTC
Record fingerprint: e2c6b4d70a03d2c34df5f419214a28f1