iPad Air 4 (Cellular) · iPad13,2

iPad Air 4 (Cellular) · iPadOS 17.5

21F79Unsigned

Catalog data · Last updated: Oct 24, 2026, 8:23 AM UTC

Restore IPSW for iPad Air 4 (Cellular): iPadOS 17.5, build 21F79.

Firmware information

Version: iPadOS 17.5
Build: 21F79
IPSW: Restore IPSW
Size: 7.01 GB
Release date: May 13, 2024, 6:05 PM UTC
File name: iPad_Fall_2020_17.5_21F79_Restore.ipsw
Download host: updates.cdn-apple.com

IPSW download

Check the model and signing status before downloading.

Download IPSW

Download hostupdates.cdn-apple.comiPad_Fall_2020_17.5_21F79_Restore.ipsw

Back up before you restore. A restore can erase the data on the device. The identifier has to match, and a file you can download may still be rejected for restore. On iPad, a newer file may be iPadOS while an older one may still be iOS. Read the operating system on each row instead of treating every file as iPadOS.

Checksum

SHA-256eb2e8419f0a60f684048578e574db8491753d777ee0819e22157cb1e8b16bc0b

SHA-1ddb2353c5ba4294d593684f5dd673bb1ec51a4b8

MD53a96daf5a89e7f0a080ac9c7f72e847d