Download iOS 10.3.3 (14G60) for iPhone 6

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 iPhone7,2
iOS Version 10.3.3
Release Date 2017-07-19
Update Date 2017-07-15
Sha1sum
c5e6caabd61022ed5580301cd8fec3c6c4bb4abf
Sha256sum
3190e9f9038044a3366231f133cfc276f14d76ed80698c3c144f6f85558cf5f6
md5sum
a3797cb1ee920204a97855b7657441ca
Size 2.44 GB
FileName
iPhone_4.7_10.3.3_14G60_Restore.ipsw
Status

Download IPSW (2.44GB) Check device info
Release Notes

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

iOS 10.3.3 includes bug fixes and improves the security of your iPhone or iPad.

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222