How to check Samsung Galaxy mobile that there are no errors in this?

Dear friends when you buy Samsung Galaxy mobile. Well make sure that there is no error in the cell.

 In a very simple way to check that I'm going to tell you.

Knowing this way you will not fear when you buy mobile that negotiations should not waste your money

Open mobile dailer and dail the code : 

*#0*#

Then you will see this type of picture on your screen same as below.

when you see this image then start to check your fone by clicking one by one from this menu. I describe the detail that how you can check this menu. I will tell you all options.

1  :

The first three options to check that there is no stain on the screen. Or the screen is not broken anywhere. Dear friends arrive at a conclusion after looking carefully. So that will not lose your hard earned money۔

2  :

After encouragement from the screen. Check out the receiver. That's right or not

3  :

Check the vibration, Mega camera and dimming support options

4 :

While checking sensors make sure it is working properly or not.

Because they are mobile are copied. The sensor is often poor.

5 :

Then step by step check all options and make sure that everything is ok and nothing wrong with it. 

Is article helpfull so please comment below.