FIRMWARE DETAILS

iOS 26.4.1

Build: 23E254Apr 8, 2026Delta OTA

Stable

View details

Filename: 453ef58410bcd1fa4fc3257791271f18c6cb25938455c7fa6a4630fcb39bee8b.aea
File size: 3.15 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: a9e7ed41f8c4f02040016e48e07b3628cfd77c7ad4ea1b307b5d2e1bd77af3af
SHA-1: 6b1f6692d39a3e5a88ba31d2ff875e3c3325ea99
Required starting builds: 23D125, 23D127
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 17 iPhone18,3

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