FIRMWARE DETAILS

iOS 26.4.1

Build: 23E254Apr 8, 2026Delta OTA

Stable

View details

Filename: bb214ecf8e4608d7c353ad69130c809534033b3ca3d4a77d895af44f22f767af.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: 0631a610f84b5c9d49ef46b60e22dfb36b5ff8e8f2fcf6f05edcd9f56f1ad4f4
SHA-1: 93f731d8b2dc2a5f45c949fff3d2c34d5d3867ae
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 Pro iPhone16,1

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