FIRMWARE DETAILS

iOS 26.3.1 (a)

Build: 23D771330aMar 17, 2026Delta OTA

Stable

View details

Filename: f671e834999d4d158e2e06ecd3ddb387130370de8db0dcd6addc98832e809616.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: 01846d86cdfe8530e8806051fd454bf76f22906de5f523fe011d8c98f5b11789
SHA-1: d05c05dec2ac35e652fbbf5e8b459081aea21f07
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 Pro iPhone16,1

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