Android 7 (nougat) On Mi5s?

[pippolone]

But I have problem here, this OS don't pass the safetynet, it said CTS profile did not match which is i can't open my mobile banking apps. I googled that there is a way, but I don't familiar with this kind of thing like magisk, systemless root.

I tried magisk and it can make our device pass safetynet test.
The problem for me is that it often loose root and I have to reboot it. Well, sometimes even after reboot root is disabled.
I also tried magisk+systemless supersu but root were not working.
So I reverted to plain SuperSU.
Is your device rooted?
If you don't care about root and your need to pass safetynet test you can give Magisk a try.
Just flash it from TWRP and then flash the fix for Xiaomi. After reboot start the app and if it needs to be updated, update and reboot again.