FIRMWARE DETAILS

iOS 26.1 beta 4

Build: 23B5073aOct 20, 2025Restore IPSW

Beta

View details

Filename: iPhone18,3_26.1_23B5073a_Restore.ipsw
File size: 11.02 GB
File type: Restore IPSW
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 4c805a5f74f4d4c856f6d9461aec16b8b9fc4bfc902eaf04cf5ddf1de643a22c
SHA-1: f9246f6a5562764b6b92572f26b20dfc68adb682
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 17 iPhone18,3

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