By using a code within the Samsung Galaxy S7 you can open a secret menu where you can check different hardware components through their paces. It involves the service menu, which is normally used only by service technicians.
But we show you here how to open the Service menu on the Samsung Galaxy S7:
For this, open from the home screen of the Samsung Galaxy S7 the menu and then the phone app. Change to the Phone app on the keypad, and then enter the following code: *#0*#
This code opens on the Samsung Galaxy S7 the secret service menu. You will now see various gray tiles. Each tile represents a hardware test or stands for more information about the hardware. Most important here is the menu item "Sensor".
About this entry you can easily retrieve the sensor data of the Samsung Galaxy S7 and check it for proper functioning. You now know how to open on the Samsung Galaxy S7 the Service menu and how display information and hardware tests can be showed.
If you want to exit the menu please press twice in succession on the back button (soft key).