FIRMWARE DETAILS

iOS 26.4.2

Build: 23E261Apr 22, 2026Delta OTA

Stable

View details

Filename: c1215701e3c9f512db952ec9358f86763e36bf5524f99499e115498a14b7ead2.aea
File size: 3.69 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: 6988bcf604c6c62c0d165c695a3d2f490f64a19d90ad7eb00b2ec3e94a58d95f
SHA-1: c83168b9d740306c37ffc7f53247041b14f441c8
Required starting builds: 23C52, 23C54, 23C55, 23C71
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