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Here I have Samsung Galaxy XCover 4 and let me show you how to use testing menu on the
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following device. At first, let's open the phone's dialer by using a phone icon in that corner
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Then let's open a keypad and let's use the following secret code
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Cover hash 7353 hash. And as you can see the testing menu just pops up in front of you
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Here you can test some things from your device, for example the melody, vibration, you can
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perform a speaker test, the timing, the camera
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You may also test such things as Bluetooth, Dot Mode, Jart Mode, Accelerometer sensor
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Proximity sensor, Light sensor and some other stuff. If you would like to quit this mode, let's just simply use a back arrow right here
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And now let me show you how to open another testing menu
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So now you have to use star hash 0 star hash. As you can see the following menu just pops up in front of you
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Here for example you can test the colors of your display. For example the red one, the green, the blue
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You can test the receiver, vibration, for example the sub key
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You can test all the keys on your device. Let me go back
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You can test the front camera, the mega camera, the touch, the speaker, sensor and other stuff
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If you would like to quit this mode you have to use of course the back arrow, so let me
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do it. Excellent. Now you may use your phone. Thank you for watching
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