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Here I have Samsung Galaxy A8 2018 and let me show you how to use secret codes on the
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following device. So at the very beginning let's start by using your home screen, let's open the phone's dialer
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right here, let's activate the keypad and let's use the first secret code
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So let me simply check the version of my device by using the asterisk hash, 1, 2, 3, 4 and hash
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As you can see the main version of the device just pops up, here you can read the AP, CP
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CSC and your exact model number. Let's use the back key to go back and now let's open the software and the hardware info
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So let's enter the asterisk hash, 1, 2, 5, 8, 0, star, 3, 6, 9, hash
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As you can see the main version pops up, you can read pretty much the same but you may
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also here get access to RF call and HW ref. Let's go back and this time let me show you how to open the test mode, let's use asterisk
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hash, 7, 3, 5, 3, hash. As you can see the following menu pops up, here you can navigate by tapping appropriate
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options, you can choose here the melody, vibration, you can test speaker, dimming
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camera and other stuff such as the front camera, bluetooth, dot mode, light sensor and lots
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of more. Let's go back, let's open another testing menu, so let's use asterisk hash, 0, asterisk
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hash, the following menu pops up, let's here choose red, so here you can test the colors
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of your screen, green, blue, you may test the receiver, vibration and other stuff such
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as the sensor, black, light, the front cam, speaker, touch and other stuff
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Let's go back by using the back key. Alright and now let's open the service mode, so let's use asterisk hash, 0, 0, 1, 1 and
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hash, service mode just pops up, you can get here access to a couple of useful information
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and here you may also for example use more key and use the key input if you would like to
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Let's go back again, let's open the battery status, so type in the asterisk hash, 0, 2
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2, 8, hash, the battery status pops up, you can read the battery voltage, battery level
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current blocks and lots of more. Let's tap the back key to go back
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Let me show you how to open the USB settings mode, so let's use asterisk hash, 0, 8, 0
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8 and hash. As you can see the USB settings mode just pops up, here you can make some changes about
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your USB. Let's go back again, this time let me show you how to open the email and serial number
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mode, so let's use asterisk hash, 0, 6, hash and the following menu pops up, you can read
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the email number, serial number, you may also get access to a barcode if you would
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like to and you can tap OK to close this window. So basically that's it, everything went well, thank you for watching, please subscribe our
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channel, leave thumbs up and the review
