firmwarehub.
العربية
FIRMWARE DETAILS

iOS 26.3.1

Build: 23D8133Mar 4, 2026Delta OTA
Stable

View details

Filename
c4d09e4bd7f4739bfb7a69299e500e8d2a587d20.zip
File size
4.68 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
4cd68d4608857306ebb629a9e6abeb5f64d5941369323e6d0f3b6aa8db348984
SHA-1
c4d09e4bd7f4739bfb7a69299e500e8d2a587d20
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)

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