These materials can only be used for ROG Phone 5S_ZS676KS, and ROG Phone 5_ZS673KS cannot be used. I will release the materials for ROG 5 separately. ROG Phone 5 ZS673KS Please see...forum.xda-developers.com
This thread by johnny886 has the entire firmware files. Follow the video in the first post so you minimize any issues.
You will need to download a few drivers.
I also posted some stuff related to any issues on a few of my threads and on johnny886 thread.
I hard bricked my phone, and managed to fix my phone only using his files.
Other people posted firmware threads as well but it isn't complete like this one is. The others are missing major components to actually fix the phone. The other threads also do not have software to save your phone imei, which if you don't save and you try to install firmware on your phone. You could end up permabricking your phone and no one can fix it at that point. This is because the phone doesn't have a serial or a lot of identifying information, so it will refuse to load the firmware.