FIRMWARE DETAILS

iOS 26.3.1

Build: 23D8133Mar 4, 2026Delta OTA

Stable

View details

Filename: 479d48e390744a041efc19781749cf7c48cf267d3ba083333927e91cf0dc651b.aea
File size: 5.91 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: 0801b6a1e83ba3a6a99667b9044f2762a6a5a19098dfd26d9b021b7e9b11d890
SHA-1: cfd0e3de2f480e73ad72d7dfd0e76b99cd0747db
Required starting builds: 21G101, 21G79, 21G80, 21G93
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: d48da896f63809bf3a31e9d1728e206a