FIRMWARE DETAILS

iOS 26.4.1

Build: 23E254Apr 8, 2026Delta OTA

Stable

View details

Filename: 3f39bf9c8f5f02b8b25f505270221bc4d16272cb.zip
File size: 5.10 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: 228ec4ef9d806ff801d1ef896432827db7b5e371f1028ac825da4d233e63dfcf
SHA-1: 3f39bf9c8f5f02b8b25f505270221bc4d16272cb
Required starting builds: 22C152, 22C154, 22C161
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 (1)

iPhone 12 Pro iPhone13,3

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%3B23E254.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:25 PM UTC
Record fingerprint: 068f9108c631b2be9610754c465ed403