FIRMWARE DETAILS

iOS 18.7.3

Build: 22H217Dec 22, 2025Delta OTA

Release CandidateStable

View details

Filename: 51aba653cbea3e36502db94fc56a2266d42a0d0f.zip
File size: 5.43 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: 0e66a2c8cf3985f7a9c7b98d520075de7d64dacb7b9c7cac759ae883ccb2cac9
SHA-1: 51aba653cbea3e36502db94fc56a2266d42a0d0f
Required starting builds: 20C65, 20D47, 20D67
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 XS Max iPhone11,6

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%3B22H217.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:26 PM UTC
Record fingerprint: 0107fd2b7719e99fff84bab4a8a558e8