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FIRMWARE DETAILS

iOS 26.4.2

Build: 23E261Apr 22, 2026Delta OTA
Stable

View details

Filename
54327190d7aa01f7b994c9a80ba62ff6ec571f5c.zip
File size
5.75 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
31296fa709f95dac3a9dadf1cfbbc456f7cdad39d97ce390121b8d4733e8a7b5
SHA-1
54327190d7aa01f7b994c9a80ba62ff6ec571f5c
Required starting builds
21B101, 21B74, 21B91
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%3B23E261.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:25 PM UTC
Record fingerprint: e2c6b4d70a03d2c34df5f419214a28f1