FIRMWARE DETAILS

iOS 26.3.1

Build: 23D8133Mar 4, 2026Delta OTA

Stable

View details

Filename: c7ffc2be726afa0636f16e02d50a9566aafb5100a2b7a16eda79ed35e4cb0d44.aea
File size: 3.09 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: 940d374137a44acbd377d76ccc22ce99dee9748ee7fedfd2a4d46250aeb9c634
SHA-1: 675db18c7a13278329ad9ac6c78f982a0a7cecf7
Required starting builds: 23A355, 23A357, 23A365
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 17 iPhone18,3

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