FIRMWARE DETAILS

iOS 26.4.2

Build: 23E261Apr 22, 2026Delta OTA

Stable

View details

Filename: caca28a962c15abc39bc7eb011140501456ba531defe188288c27b2e27aee6cf.aea
File size: 4.70 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: 2bf733b049f7b16ed9a0c9d93e5f44d05c49cb1cfa76bb8b0946f0eeff37083f
SHA-1: 9615041c6ab10bf05223b13df23db4a94ca27689
Required starting builds: 22H123, 22H124
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 iPhone15,4

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