FIRMWARE DETAILS

iOS 26.4 beta 4

Build: 23E5234aMar 9, 2026Delta OTA

Beta

View details

Filename: 2f10958158a3833bf04d9cdbd455fe5caec5f446a0e45893fa15e74b7de308b4.aea
File size: 1.85 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: 63315f41bd920cc538fc638ba1903df0931205fc6d3c9c7e698d4817d29c2cd7
SHA-1: 83536b11c2e2e1be4ffec3c4f18e0fffb311a191
Required starting builds: 23E5207q, 23E5218e, 23E5223f
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 Air iPhone18,4

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: 266f23a2e3a0472ff895ed73af2f2aa0