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FIRMWARE DETAILS

iOS 17.7.2

Build: 21H221Nov 19, 2024Delta OTA
Stable

View details

Filename
15c54bef3892c9630d697cdd6dc9e26ff4b1023c.zip
File size
4.85 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
febb98b9c4cf819533316b34c5458290345f84440916b571d6c52412ab9c1a9b
SHA-1
d76445f86d3087a3d8d1d521fa7669aa1258c9d2
Required starting builds
19B74, 19B81
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)

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%3B21H221.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: 346e1c45f7ddd8916eb8bb86f371980e