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Here I've got Samsung Galaxy S20 and let me show you all the secret codes on the following device
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So at first you have to open your phone dialer and now let's start with the first code and
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it is asterixpound06pound. And as you can see this one will provide you with both email numbers assigned to your Samsung
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and also with serial number. Here it is. Just tap on OK to go back and this is how you can very quickly and easily get access
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to your email and serial number. Then the second code is asterixpound1234 and pound
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And as you can see here you can check your firmware version, smoothly enter this code
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and then come along with details. So let me go back. Now we will open test mode and the code is pretty short
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It's asterixpound0asterixpound. And as you can see now you can test all the features in your Samsung Galaxy
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Let's pick for example display test. It's red, green, blue and also black over here
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So let me check the display. It's working properly. Green. It's good as well
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Then blue. It's working fine. And then black. It's also correct. Just tap on power key to switch off the black display
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Then you can also check the receiver. And as you can hear it's working properly
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Then vibration. Also it's working. And just pick the option that you would like to test, that you would like to come along
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with and smoothly click on it. So that would be all for this code
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And now let's enter the fourth one. It's asterixpound0011pound. And now we are in service mode so if you will click on the more icon you will have access
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to some more advanced options. And here, just let me go back
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This is it for this one. And another code is a bit longer. It's asterixpound2683662
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And pound at the end. And as you can see here also you've got service mode but it's a bit more advanced
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If you will click on the more icon you will be able to come along with some further options, further features
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Smoothly pick the one that you would like to access. And that's actually it
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And another one is asterixpound0228pound. And now you can come along with battery status
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So just enter this code and then come along with current value, voltage level, level block
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and many other useful details. Also here you can just check your battery by tapping on quick start
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So let me go back. And another code is asterixpound0808 and pound at the end
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And here you can change the USB settings. So you can switch between the first one which is MTP to the second one
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Just give it a while as your device needs to reboot
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And that's it. You've just changed the USB settings. Let me open the phone dealer again
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And now we will open another mode for the different code. And this code is asterixpound02663pound
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And now you've got the advanced firmware version. So here you can come along with TSP version, parts TSP version, then configuration options
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developer only details over here. You can also refresh your Wi-Fi here if you want to
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Just click on refresh Wi-Fi version and then you can do it right here
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And actually that would be all. This is the last code that you can use in your Samsung Galaxy S20
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Just let's go back and enter the one that you need to. So this is it
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This is how you can smoothly and easy access very advanced modes in your Samsung Galaxy S20
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