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Here I have Samsung Galaxy S9 and let me show you how to open the hardware test mode on
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the following device and let me show you how to test your device performance
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At the very beginning let's start by using your home screen, here you have to open the phone's dialer
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Let's activate the keypad and let's use the first secret code, asterix hash 7353 hash
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As you can see the following screen pops up, here you can navigate by tapping appropriate options
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Let's start by using the melody. Let's test the vibration. You may also test speaker
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You can check out timing, camera. Let's make some picture. Let's go back
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You can also test the front camera, bluetooth, dot mode, proximity sensor, light sensor and
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other stuff as well. Let's go back by using your back arrow and now let me show you how to use the other testing menu
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So let's open the asterix hash 0 asterix hash and the following menu pops up
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Here you can also navigate by tapping appropriate options and here you can for example test
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your device screen, the all colors, the red, green, blue. You may test the receiver, check out also the vibration and other stuff such as the
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sensor, touch, speaker, sub key, front camera, led light, the whole IC or for example the
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black light. So that's it. If you would like to quit this mode let's use the back arrow twice and now you can use
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your device in a normal way. Thank you for watching, please subscribe our channel and leave thumbs up under the video
