Download iOS 7.1.2 (11D257) for iPhone 4 (GSM / 2012)

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

✅ This IPSW firmware is Signed

Firmware Identifier iPhone3,2
iOS Version 7.1.2
Release Date 2014-06-30
Update Date 2014-06-20
Sha1sum
b3c0c0adc95ae2ae1184e9aa111845cd705975d9
Sha256sum
8fddeb06b0247fbb18132d9792af569d486422355b272786f4e77cd57b7491fb
md5sum
681686a3e860d3c592aa201c27e2d5a0
Size 1.12 GB
FileName
iPhone3,2_7.1.2_11D257_Restore.ipsw
Status

Download IPSW (1.12GB) Check device info
Release Notes

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

This update contains bug fixes and security updates, including:

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

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