FIRMWARE DETAILS

iOS 26.4.1

Build: 23E254Apr 8, 2026Delta OTA

Stable

View details

Filename: 3b50306f8e165d4ffeba850cc1015c6686b33e5c.zip
File size: 4.75 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: 1aca1216d3a68ff1d4fad5c0013b25c667237e8c4cdaa4cd364dff658b009de1
SHA-1: 3b50306f8e165d4ffeba850cc1015c6686b33e5c
Required starting builds: 22B83, 22B91
Board restrictions: Not reported

OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.

Compatible hardware (1)

iPhone 11 Pro iPhone12,3

Unknown

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

AppleDBhttps://api.appledb.dev/ios/iOS%3B23E254.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:25 PM UTC
Record fingerprint: 068f9108c631b2be9610754c465ed403