Problem working with tabs and no tabs simultaneously


Hello I am doing a project with ionic and angularjs, but I’m having some problems.
In my first screens I just do not use tabs, but after that the system enters the main screen which now uses tabs.

Before I get into my view of tabs, all the buttons back work, but when I go into the view of tabs everything changes.

The problem is that my navigation within the tabs not only limited the options tab features. I have tabs that calls other pages, and then I have problem. From that moment the back button no longer appears.

I need your help.

Thank you.