Download iOS 9.2.1 (13D15) for iPhone 5 (GSM)

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 iPhone5,1
iOS Version 9.2.1
Release Date 2016-01-19
Update Date 2016-01-12
Sha1sum
32c06850a21aa026fbd047c264dcdc262b47fa3f
Sha256sum
78c9d48fb53892fc4232c1aaede93e76fe81b44e26d755929c28cb10c994f200
md5sum
1fc487cc0fe76363818a6266f107af3d
Size 1.55 GB
FileName
iPhone5,1_9.2.1_13D15_Restore.ipsw
Status

Download IPSW (1.55GB) Check device info
Release Notes

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

This update contains security updates and bug fixes including a fix for an issue that could prevent the completion of app installation when using an MDM server.

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

https://support.apple.com/HT201222