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Here I have Samsung Galaxy Note 3 and let me show you how to use secret codes on the
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following phone. So at the very beginning let's open the phone's dialer
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Let's tap phone icon in that corner and let's use your keypad
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So let's begin by checking the version of the device. Let's input the following code
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Star hash, one, two, three, four, hash. As you can see the version of this device just pops up
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If you would like to go back let's use your back arrow. Let me do it right here
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Now let's check the main version. So let's input the following code
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Star hash, one, two, five, eight, zero, star, three, six, nine, hash
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As you can see the main version just pops up. So you can read some other important detailed information about your device
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If you would like to go back let's use your back arrow one more time
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Now it's time to enter the test mode. So let's input the following code
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Star hash, seven, three, five, three, hash. And the test mode just pops up
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Here you have full list of available features that you can test on this device
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For example you can check melody, select vibration, choose speaker, test camera
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You can take a picture to check your camera. And if you would like to go back let's use your back arrow
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You can test some other detailed stuff such as bluetooth, light sensor, proximity sensor
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and other important features. Let's go back by using your back arrow
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Now it's time to enter in other test mode. Let's input star hash, zero, star hash
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And as you can see the menu of the second test mode just pops up
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You can test for example your screen by using red, green, blue
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You can test receiver, vibration and other stuff such as sensor, touch, sleep, speaker
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front camera, sub key, LED, black and other important features that can be tested on this smartphone
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Let me go back by using your back arrow. And now let's open service mode
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Let's input star hash, zero, zero, one, one, hash. And as you can see service mode just pops up
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So you can use this mode and read some data from this mode or you can go back by using
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your back arrow. Now let me show you how to enter battery status menu
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Let's input star hash, zero, two, two, eight, hash. As you can see the battery menu just pops up
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You can read such stuff from the following menu as level of your battery, level block
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battery voltage and other data. Let's go back. Now let me show you how to enter USB settings mode
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Let's input star hash, zero, eight, zero, eight, hash. And as you can see USB settings just pops up
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So you can change the mode of your USB. You can for example reboot your device and reboot the settings
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And if you would like to quit this mode, let's use as always your back arrow
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And now let me also show you how to check email number by using your secret code
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Let's input star hash, zero, six, hash. And as you can see the window with your email number just pops up
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To close this window simply tap OK. Excellent. Thank you for watching
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