It is possible to enter the normally hidden menu of the iPhone. All phones have test menus like this one. Here you can see the features of your device in a detailed and technical way. You can even test your device from this screen. For this, we show you how to enter the field test menu.
Entry to the Field Test menu
Enter the phone application and switch to dialing.
Type 3001 # 12345 # * and press the search button.
When these codes are executed, you are in the field test menu.
In this menu you can find all the detailed information about your phone. For a normal user, whatever is written on the menu may seem pointless, but for advanced users, testing the phone is a necessary area for changing settings, etc. Test menus like these found in all phone models contain many test fields and information from your phone's screen to voice data connection to call quality.
In many models, the phone information can be seen in the test menu in detail. Many signatures can be displayed, from Mac addresses to imei addresses, and detailed and technical information about the phone can be obtained.