Download iOS 13.1.2 (17A860) 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 13.1.2
Release Date 2019-09-30
Update Date 2019-09-28
Sha1sum
bc529f93853b5583b4f4d2ae53c3402c7084a54a
Sha256sum
0f9dc858036bdbef9b78949d52dcb1da895212cbac90c7d00f1cb8590a0df3d0
md5sum
b3f79308d7c7b26cb246e4da4a626811
Size 3.57 GB
FileName
iPhone_5.5_13.1.2_17A860_Restore.ipsw
Status

Download IPSW (3.57GB) Check device info
Release Notes

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

iOS 13.1.2 includes bug fixes and improvements for your iPhone. This update:

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

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