Download iPadOS 8.1.3 (12B466) for iPad 2 (Mid 2012)

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 iPad2,4
iPadOS Version 8.1.3
Release Date 2015-01-27
Update Date 2015-01-19
Sha1sum
5728d7fd98923d1df26e7af6618a2c8e383afa56
Sha256sum
2ae95a3532a8dc32dc7f36ebeb5c1a6aa674f7efe3259c372546cefdd05d4db4
md5sum
3a4ca476445531786bf0fd6fe659f6cd
Size 1.31 GB
FileName
iPad2,4_8.1.3_12B466_Restore.ipsw
Status

Download IPSW (1.31GB) Check device info
Release Notes

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

This release includes bug fixes, increased stability and performance improvements, including:

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

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