FIRMWARE DETAILS

iOS 26.4.2

Build: 23E261Apr 22, 2026Delta OTA

Stable

View details

Filename: 1da97d6dfb7bbfd9c4eba0ab55eb494aaa6d53bcd8ec9957c3817e337d820250.aea
File size: 3.09 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: bfbfba2f4cb04de71e3269d39dfb27eb4218b637521eabf0dc8414f7006da645
SHA-1: 3b32ce91d1a06f5101af8847e8c04ca8c778010d
Required starting builds: 23D8128, 23D8133
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 17 Pro Max iPhone18,2

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: e2c6b4d70a03d2c34df5f419214a28f1