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FIRMWARE DETAILS

iOS 26.4.1

Build: 23E254Apr 8, 2026Delta OTA
Stable

View details

Filename
b7abb28ea6cf47274421ca8f0d82196e71e238781737d6725e85576fb9e74d3f.aea
File size
6.17 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
63cd84d9f62934d88bc94733ebaaede148fd0924faf5af880e8ed1f9f5ae3ea9
SHA-1
b4f854b80e7a359bf851629d7f1887f4237689fc
Required starting builds
21D50, 21D61
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)

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