FIRMWARE DETAILS

iOS 26.4.1

Build: 23E254Apr 8, 2026Delta OTA

Stable

View details

Filename: 55be2fb957b3f92148784ac0cb97b0a68fdae6fc1258ad95d9946c9bfaec942a.aea
File size: 478.2 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: 9c2be6df3f993cc664741f32336780df70bf67b2e7ae69c761449bc81d9193cc
SHA-1: 2468d73fa07c5a274733b9721d48e128d7c3857b
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 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: 068f9108c631b2be9610754c465ed403