FIRMWARE DETAILS

iOS 26.4.1

Build: 23E254Apr 8, 2026Delta OTA

Stable

View details

Filename: d0b33d12621f892455fb1987381dc00c7189de3a1721d23a6a0e395c35d2aa98.aea
File size: 6.24 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: 65b00125b3f9e3b68b4216338ac46e4f890098cb777bbf7ebe17fd03a3690fc7
SHA-1: 216a0d5c4860515babcbefa30777f0c3faaa33b4
Required starting builds: 21F101, 21F79, 21F90
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 Pro Max iPhone16,2

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