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FIRMWARE DETAILS

iPadOS 15.1

Build: 19B74Oct 25, 2021Restore IPSW
Stable

View details

Filename
iPad_Fall_2020_15.1_19B74_Restore.ipsw
File size
5.83 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
bcde0dba775219f183ee17e2179e6a61a8737a4e0c7b88bea7853a698774d9e1
SHA-1
c37839c73b65ddb3fb04c52aad6b14372d5142b8
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%2C2?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:19 PM UTC
Record fingerprint: 745649193b600b90f2d1e39811a35b95

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: e7ebb8664d2a32e6899c73f488239750