Download iOS 12.4 (16G77) 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 12.4
Release Date 2019-07-22
Update Date 2019-07-15
Sha1sum
8e80709a9ee2643cd3442a5b0e5d9566e3774170
Sha256sum
c85f52c5fc444598e36c001aa86e5eed182ff07f79a09d18cb8142333906f316
md5sum
9f33e6b481d33cd4a0b523180ad0a285
Size 2.96 GB
FileName
iPhone_4.7_12.4_16G77_Restore.ipsw
Status

Download IPSW (2.96GB) Check device info
Release Notes

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

iOS 12.4 introduces iPhone migration to directly transfer data from an old iPhone to a new iPhone, includes enhancements to Apple News+ and improves the security of your iPhone or iPad. This update:

iPhone migration

Apple News

Other improvements and fixes

This release also includes support for HomePod in Japan and Taiwan.

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

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