FIRMWARE DETAILS

iOS 26.4.2

Build: 23E261Apr 22, 2026Delta OTA

Stable

View details

Filename: 3412ae3a2f44f5f7dcfd0ead4f9398324c290f2ffa823eb3d84cfad6356b3f73.aea
File size: 5.03 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: 89d1edab90a091b46abe91bf7dba773fc3cebd682fc1c41bf30eafbaea961783
SHA-1: 98612c8cc0fd0cfbcbd92343b9dbc7e210323bcf
Required starting builds: 22B83, 22B91
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