M2 - Change admin login language

Question

does someone knows how to change magento's admin login language?

I have a language package installed (es_MX and pt_PT)

Things I've tried:

1) Changed admin user language in Account Settings > Interface Locale but it only translates when the admin user is logged in, but don't translates Admin login form.

2) Changed locale in Stores > Configuration > Locale Options > Locale but it is a configuration for frontend.

Any help is appreciated, maybe this is not something relevant for a login, but I don't want to brake user experience.

Answer 1

Your second try is in fact the right answer.

The setting in Stores > Configuration > General > General > Locale Options > Locale is responsible for the admin login form, but only when set for the default scope.

Once you use this setting in any "website" or "store view" scope, it will only apply to the frontend.