FIRMWARE DETAILS

iOS 26.3.1

Build: 23D8133Mar 4, 2026Delta OTA

Stable

View details

Filename: a1fe71fd58447d09550263a4383e871f6869666a3426df810240728426b4c032.aea
File size: 1.98 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: f9f33f9eddc076b2ceaed1067aa7f8405d639c76576aab0e248f7edaafd25807
SHA-1: 52f516829e075c4863ce2e54c621f314997c5413
Required starting builds: 23B82, 23B85
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 Pro iPhone17,1

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