How to set up a menu for the home and another for the rest of the pages/entries

Hello,

I am setting up a site, with a home-ladingpage + a blog. In the home, I have set a menu in the main menu, and in the blog + entries, a second menu different set in secondary menu. The problem with this are:

1.- In all the blog entries I have to go deactivating the main navigation, so that only the secondary one appears. Not very efficient

2.- In the mobile version of the blog entries, even if the main navigation is disabled, it is still displayed.

In short, what I need is that the home shows a specific menu, and in the blog and entries, a different one. What would be the most correct way to do it?

Thank you.
PS: sorry for my english.