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Here I have Samsung Galaxy X cover for let me show you how to use secret codes on the
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following device. So at the very beginning let me start by using my home screen
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Let me open the phone's dialer by using the phone icon in that corner
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Afterwards you have to use the following secret code. At first let me check the version of the device
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So let's input star hash 1 2 3 4 and hash. The version of Samsung Galaxy X cover 4 just pops up
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You can read this or you can close by pressing the back arrow right here
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Now let me show you how to check the software and hardware version. So the main version of the Galaxy
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Let's input star hash 1 2 5 8 0 star 3 6 9 hash
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And the main version just pops up. So you can read more specific information about your device
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Let's go back and now let me show you how to open the test menu on the following device
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So let's input star hash 7 3 5 3 and hash. The test menu just pops up
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Here you can test some features from your device. For example you can test the melody, the vibration, the speaker, the camera and some other stuff
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such as bluetooth, dot mode, jerk mode, accelerometer sensor and the light sensor
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Let's go back and now it's time to show you the second testing menu
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So all you have to do is input the following code. Star hash 0 star hash
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As you can see the following menu just pops up. Here for example you may test the all colors of the display
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For example the red one, the green, the blue. You may test the receiver and the vibration
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Here you've got some more detailed tests. For example the dimming, the touch, the sensor, speaker, sleep, sub key, front camera, raw
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frequency and a lot of more. Let's go back and now let's open the service mode
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So let me open the fonts dialer. And let's use the following code
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Star hash 0 0 1 1 hash. And the service mode just pops up
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Here you can read some specific information about your device. For example the PCC, the cell and some other stuff
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Let's go back. You may also open the battery status mode. So let's input the star hash 0 2 2 8 hash
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And the battery status just pops up. Here you can read such things as battery level, average value, voltage and some other stuff
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Let's go back. Now let me show you how to open the USB settings mode
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Let's use star hash 0 8 0 8 and hash. That's it
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Here you can change the mode of the USB. You can select from AP to CP and some other stuff
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Let's go back and the last secret code it is the email code
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Let's input star hash 0 6 hash and as you may notice the email and the serial number
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just pops up on the screen. In order to close this window simply tap OK. Excellent
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