FIRMWARE DETAILS

iOS 26.4.2

Build: 23E261Apr 22, 2026Delta OTA

Stable

View details

Filename: c0863413ff49134e6178a77b7d8a5c4f28210f50b8f6ba7f99bdc1a775cb0c2e.aea
File size: 4.50 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: c9eca60519e56870a0ceb8e6cbe8e9d98ed3a66bf8bad24035739e510d4110a7
SHA-1: 4b83bd21c3589700435f10eaecbdaa3a4531434e
Required starting builds: 23A330, 23A340, 23A341, 23A345
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 17 Pro Max iPhone18,2

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