FIRMWARE DETAILS

iOS 26.1 beta 4

Build: 23B5073aOct 20, 2025Delta OTA

Beta

View details

Filename: dc9595c50b4416cb77c705a2a5d75e45f3ab2ec9ab416ffa9d04f0ff13805a61.aea
File size: 2.21 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: 0ac663233e56341d2a93a5b0bca26889dfc368dc9ca796b33e5da45b876c29b9
SHA-1: 1e0a648a766bf36b31242dcc0e10fbff832f102b
Required starting builds: 23B5064e
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, 6:26 PM UTC
Record fingerprint: 18d16b0fe5b5f30c945b62b572d3ecde