FIRMWARE DETAILS

iOS 26.3.1

Build: 23D8133Mar 4, 2026Delta OTA

Stable

View details

Filename: 4122bc3f257c492b0bf8fc488d251d2df6bc1a48e261b6d4ae80ba1cfa0b34df.aea
File size: 5.23 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: eb6700c20ed89ce7adcdeea515d9066a85de54cfbdd39ec2ab8ec1be029ee331
SHA-1: b8fb857ce6e06b752e35e8f1817255e6d413925c
Required starting builds: 22G100, 22G84, 22G86, 22G90
Board restrictions: Not reported

OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.

iPhone 16 Plus iPhone17,4

Unknown

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

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