FIRMWARE DETAILS

iOS 26.4.1

Build: 23E254Apr 8, 2026Delta OTA

Stable

View details

Filename: cee18258eefb177f5e4a1e937c3ab3d701b8cab0b40f20267da0083b39159736.aea
File size: 4.03 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: 4d50f682b564d170557cc1cd1e7e8b29987ec0d5d0f6a3c93641ea48d4feefa8
SHA-1: aabb92ddfbc13d350fe6e43fc256227b0f3eaec7
Required starting builds: 23A355, 23A357, 23A365
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 iPhone17,3

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