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FIRMWARE DETAILS

iOS 26.1 beta 4

Build: 23B5073aOct 20, 2025Full OTA
Beta

View details

Filename
ffda78db4cc6bec462403186dccc3f4e5e13b39e.zip
File size
7.46 GB
File type
Full OTA
Download host
updates.cdn-apple.com
Link availability
Not verified

Source reports active

Last link check
Not checked
SHA-256
93d251f3d962f45ab6532d3c9556df635ea44a803b62e4d2430013fef86ef982
SHA-1
ffda78db4cc6bec462403186dccc3f4e5e13b39e
Required starting builds
Not reported
Board restrictions
Not reported

OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.

Compatible hardware (2)

iPhone 11 Pro iPhone12,3
Unknown
Unknown

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%3B23B5073a.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:26 PM UTC
Record fingerprint: 18d16b0fe5b5f30c945b62b572d3ecde