FIRMWARE DETAILS

iOS 26.3.1

Build: 23D8133Mar 4, 2026Full OTA

Stable

View details

Filename: ff978bbb63590a92402bfd2d9e807084ad32dc49994bf712cf802c3c8f965f83.aea
File size: 8.25 GB
File type: Full OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: ae0d566ae5dbaba57fa47a501a0d2974f8aed61bdc635e93775e0c444a677d46
SHA-1: 35e9345ad30699538c036841e481122ba2a81886
Required starting builds: Not reported
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 Air iPhone18,4

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