FIRMWARE DETAILS

iOS 26.3.1

Build: 23D8133Mar 4, 2026Other Firmware

Stable

View details

Filename: b1a088f6f800b07604ee6b51a1bdacba5a9d89af.zip
File size: 299.2 MB
File type: Other Firmware
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 5b3d15d47b985d2ca1efa4226657c5f30f34a4b8424e02889ddf4dc125811bcf
SHA-1: b1a088f6f800b07604ee6b51a1bdacba5a9d89af
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 17 iPhone18,3

Not applicable

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

AppleDBhttps://api.appledb.dev/ios/iOS%3B23D8133.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:25 PM UTC
Record fingerprint: d48da896f63809bf3a31e9d1728e206a