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FIRMWARE DETAILS

iPadOS 17.1.1

Build: 21B91Nov 8, 2023Restore IPSW
Stable

View details

Filename
iPad_Fall_2020_17.1.1_21B91_Restore.ipsw
File size
7.36 GB
File type
Restore IPSW
Download host
updates.cdn-apple.com
Link availability
Not verified

Source did not report availability

Last link check
Not checked
SHA-256
366e8fc562c5ffae67087ea42edab9e42b4f6e5c14a6427edc3cf7c5215c5746
SHA-1
c05fad816fc0456db194ed41b48ca7dddd0d704e
Required starting builds
Not reported
Board restrictions
Not reported

Compatible hardware (2)

iPad Air (4th generation) Wi-Fi iPad13,1IPSW.me v4 third-party restore observation (retrieval time) · Oct 19, 2026, 10:59 PM UTC
Unknown
iPad Air (4th generation) Wi-Fi + Cellular iPad13,2IPSW.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/iPad13%2C1?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:19 PM UTC
Record fingerprint: 1359e0e0e3d627ea00e47ab270416ce9

IPSW.mehttps://api.ipsw.me/v4/device/iPad13%2C2?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:19 PM UTC
Record fingerprint: e6353cc09e346c5b0769f512d9f3db29