Download iOS 9.3.3 (13G34) 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 iPhone7,1
iOS Version 9.3.3
Release Date 2016-07-18
Update Date 2016-07-06
Sha1sum
570ba68dc0ab1e2b3e5fd91472fda3fd4bd5a859
Sha256sum
10bf9123fe9c110af06bd615d70ca60c739a24401844647efe28e8dba6ab719d
md5sum
0fde261380583c4ebaddf06a7c761e4c
Size 2.08 GB
FileName
iPhone7,1_9.3.3_13G34_Restore.ipsw
Status

Download IPSW (2.08GB) Check device info
Release Notes

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

iOS 9.3.3 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