FIRMWARE DETAILS

iOS 26.3.1 (a)

Build: 23D771330aMar 17, 2026Delta OTA

Stable

View details

Filename: afd9fb0bd53443b193551fb7de5958dd74d9bb3a7fbc78bd7bf8caa0e5277e67.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: 4f76c19b0b0157482ea11066c98f68315583cbcd8ebfe8292e600c34f54f2965
SHA-1: b27b0dbf7a8ff20e19417a5679c3a8894995b5dd
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 15 Plus iPhone15,5

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