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FIRMWARE DETAILS

iOS 17.1.1

Build: 21B91Nov 8, 2023Restore IPSW
Stable

View details

Filename
iPhone11,2,iPhone11,4,iPhone11,6_17.1.1_21B91_Restore.ipsw
File size
7.61 GB
File type
Restore IPSW
Download host
updates.cdn-apple.com
Link availability
Not verified

Source reports active

Last link check
Not checked
SHA-256
139a697d11b11ee2ebf9c2e8551aa817a49ad71f7df524d78651476079150736
SHA-1
9dd1a2229ac7efd90670722caf5f14b80645b265
Required starting builds
Not reported
Board restrictions
Not reported

Compatible hardware (3)

iPhone XS iPhone11,2IPSW.me v4 third-party restore observation (retrieval time) · Oct 19, 2026, 10:59 PM UTC
Unknown
iPhone XS Max iPhone11,6IPSW.me v4 third-party restore observation (retrieval time) · Oct 19, 2026, 10:59 PM UTC
Unknown
iPhone XS Max (China mainland) iPhone11,4IPSW.me v4 third-party restore observation (retrieval time) · Oct 19, 2026, 10:59 PM UTC
Unknown

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

IPSW.mehttps://api.ipsw.me/v4/device/iPhone11%2C2?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 10:59 PM UTC
Record fingerprint: 761e9888918a2d3ef58ac40a94831472

IPSW.mehttps://api.ipsw.me/v4/device/iPhone11%2C4?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 10:59 PM UTC
Record fingerprint: e68ca2ea64ea357898d75f05c174b4f1

IPSW.mehttps://api.ipsw.me/v4/device/iPhone11%2C6?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 10:59 PM UTC
Record fingerprint: 72451415a0a1e160c2253ee2912cb534

AppleDBhttps://api.appledb.dev/ios/iOS%3B21B91.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 920b0a70bb6d0ccadee92018f5db3f40