FIRMWARE DETAILS

iOS 26.4.1

Build: 23E254Apr 8, 2026Delta OTA

Stable

View details

Filename: e26d4e4a831f2736f524cc873c1f3db9b6f5ed9ce2f02f79b1eb9f0aa5f6f9ac.aea
File size: 654.3 MB
File type: Delta OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 2a7f852c6e175226f87401bc691ccd0e41fb3e328b797bf6ff85a2ea22b8a65d
SHA-1: 6698a9700a4e09ce4003a5d47f6757898283b730
Required starting builds: 23E244, 23E246
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 Plus iPhone17,4

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: 068f9108c631b2be9610754c465ed403