Download iPadOS 5.1.1 (9B206) for iPad 2 (WiFi)

You will have to note that you can only restore signed IPSW firmware files using iTunes or 3utools.

❌ This IPSW firmware is not being Signed by Apple

Firmware Identifier iPad2,1
iPadOS Version 5.1.1
Release Date 1970-01-01
Update Date 2012-04-27
Sha1sum
1c3c34fedb7b41b7eeb0773c0871be05fa236fee
Sha256sum
7b0b971e45e6b5eca50c74a3d40264ada2aabfd322b7e597313951d19c374305
md5sum
a8592e53fdbaf2e1474cb58b80ac2a4d
Size 0.71 GB
FileName
iPad2,1_5.1.1_9B206_Restore.ipsw
Status

Download IPSW (0.71GB) Check device info
Release Notes

It should be noted that these are the official release notes for the from Apple

This update contains improvements and bug fixes, including:

For information on the security content of this update, please visit this website:

http://support.apple.com/kb/HT1222