Is iPadOS 5.1.1 Still Signed?

Signed

A "Signed" status means that Apple's servers are currently authorizing the installation of this firmware version. You can use this IPSW file to restore or downgrade your device using Finder (on macOS) or iTunes (on Windows). This is the only way to install a specific firmware version.

Firmware Details
Version
5.1.1
Build ID
9B208
Release Date
May 25, 2012
Signing Status
Signed
Compatible Devices

Currently Signed Devices (1)

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See every compatible device for iPadOS 5.1.1 with file sizes, build IDs, and direct Apple download links.

Download iPadOS 5.1.1