FIRMWARE DETAILS

iOS 26.3.1 (a)

Build: 23D771330aMar 17, 2026Delta OTA

Stable

View details

Filename: c00530e9c01c869fc71d53849d20332290164d0640af03468c68b7c70c24ee9b.aea
File size: 27.8 MB
File type: Delta OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 8e5717ef5705c92bd59bd40e040047aad5bef2687269883ba051730c94d3a21e
SHA-1: 82c84cab3259f1cd715d09efb4190bcddc0436f6
Required starting builds: 23D8133
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: 8ecf2050050d2259356591e5a8aeef8f