Download iOS 11.4 (15F79) for iPhone X (GSM)

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 iPhone10,6
iOS Version 11.4
Release Date 2018-05-29
Update Date 2018-05-18
Sha1sum
11fa6afd5772b58c28c8fcc8da0f8995c52eef9f
Sha256sum
cd3fc5b247c35c301448d7198bd2c56eb02a20f1f54bd7d0e58cfb6aac90e659
md5sum
f410a110101d2f16c2b4e373bd3ee0f3
Size 2.78 GB
FileName
iPhone10,3,iPhone10,6_11.4_15F79_Restore.ipsw
Status

Download IPSW (2.78GB) Check device info
Release Notes

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

iOS 11.4 includes AirPlay 2 multi-room audio, support for HomePod stereo pairs, and Messages in iCloud. This update also includes bug fixes and improvements.

AirPlay 2

HomePod stereo pair

Messages in iCloud

Other improvements and fixes

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

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