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FIRMWARE DETAILS

iOS 26.3.1

Build: 23D8133Mar 4, 2026Delta OTA
Stable

View details

Filename
9a331b9f8ec177f161bc6b4e6dfbc4f5d411bef926333a4a9d1acad5c8e95e71.aea
File size
6.11 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
9d58dd5dd0555baea76891db11e6bf1c797ae786987c96025dfe4a862559f4be
SHA-1
6165d880ebc154a5db6029edbd25aedb2f85b56e
Required starting builds
21E219, 21E236, 21E237
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%3B23D8133.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:25 PM UTC
Record fingerprint: d48da896f63809bf3a31e9d1728e206a