AngularJS isn't working on device app

Hi everyone,
I’m starting developing with Ionic Framework. I wanted to adapt my webapp written with AngularJS fw for Android phones.
The app worked well on the browser when testing with ionic serve and when testing on emulator with ionic emulate android.
Everything is ok in these tests.
But when I build the app and I test it on my phone, it does not load Angular items.
It looks like when I tested webapps on browser without internet connection and using CDN.
But I have local copies for every framework/libray I use to avoid problems.

What’s could be wrong?
Thanks for support.

UPDATE: I tried with another phone and everything worked.
Why can’t I run my app on my phone?