By inputting these simple android codes into your smartphone you can get a lot of information about the phone and the network.
E.g. you can get your IMEI number,
Phone Information, Usage, Data and Battery Information,
View phone lock status,
Camera information,
Immediate backup of videos, songs and images,
To know full information about software and hardware,
Reset the data partition to factory state,
Test backlight or vibration,
To format your smartphone,
To enable test mode of service,
Diagnostic configuration,
and more…