Download iOS 9.3.4 (13G35) for iPhone 6s+

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 iPhone8,2
iOS Version 9.3.4
Release Date 2016-08-04
Update Date 2016-08-01
Sha1sum
b34766bc1c5ea8a0102c4b4df456e9fc2928e222
Sha256sum
9c69fa38051633ad5cdc7d1df6c33461365523fd6dc4c888820b968c519aa46d
md5sum
266546f4fa50387705c158ab77ca30f7
Size 2.27 GB
FileName
iPhone8,2_9.3.4_13G35_Restore.ipsw
Status

Download IPSW (2.27GB) Check device info
Release Notes

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

iOS 9.3.4 provides an important security update for your iPhone or iPad and is recommended for all users.

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

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