FIRMWARE DETAILS

iOS 26.2.1

Build: 23C71Jan 26, 2026Delta OTA

Stable

View details

Filename: 1bdcae22049fab22d06e368c089532bf36cd22a0276b3cea1d005df4e02218ae.aea
File size: 654.3 MB
File type: Delta OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 3cc993391a1c5d8ec9a0f18b5dc3de7634369697b446a57077f84755c806b2ad
SHA-1: 524c04335a9e6584b4e973da466a66aa4be70315
Required starting builds: 23C52, 23C54, 23C55
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, 6:26 PM UTC
Record fingerprint: 2fab43bf0c5df8d5bf194f5b1af00af7