Zte Axon User Manual page 164

Developer Options
To manage Android application development settings:
1. Touch Build number in the About phone menu 7 times.
2. Touch the Home key >
WARNING!
Developer option settings can cause the phone and
applications on it to exhibit unexpected behavior. These options
are intended for development use only.
About Phone
To view important phone and legal information:
Touch the Home key >
To check for system updates and install them when they
become available:
Touch the Home key >
System updates > System Update.
> Settings > Developer options.
> Settings > About phone.
> Settings > About phone >
164