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FIRMWARE DETAILS

iOS 26.4

Build: 23E246Mar 24, 2026Delta OTA
Stable

View details

Filename
55a4b2acdd55ba94b9b8c3920ff2549c5bd737bc.zip
File size
5.53 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
1c97ddf391da2eeef476b93e15544da5b9d5f214b1f966590d3794829fab5cb2
SHA-1
55a4b2acdd55ba94b9b8c3920ff2549c5bd737bc
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.

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%3B23E246.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:25 PM UTC
Record fingerprint: a55c8ee2f9fc0fcbc1637ce8870341b4