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Here I've got Xiaomi Redmi Note 9 Pro and let me show you some of the secret codes that
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you can use on this device. So at first you have to open the phone dealer because this is the place where we will be
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entering the codes and let me start with the first one which is asterisk pound, asterisk
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pound, 64663 and pound, asterisk pound, asterisk. And as you can see this is the test mode, here you can check all the features on your
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device so you can check touch panel, keypad, motor, LED, receiver, speaker, cameras and
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so on. Let me show you some of the tests, for example receiver
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So it's 2-3, just mark what you are hearing and then tap on OK
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Now click on play music and if you can clearly hear it just click on OK
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Now we can check the speaker and it's working properly. Now the music, let's click on play music
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I cannot notice any noises so it's working properly, click on OK and now if you go back
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you will see that it passed the test, you will see notification on the right edge of
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the panel. So this is it, we can close this feature, this code and now let me enter another mode
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and that would be asterisk pound, asterisk pound, 4636, pound, asterisk, pound, asterisk
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And now we've got testing mode performed by Google and here you can check phone information
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for both SIM cards and also Wi-Fi details. So let's open phone info, here you've got email number, phone number, current network
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signal strength, voice service, data service and so on. A bit lower you can perform a ping test, just click on run ping test and here you've
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got it. So let me go back, then under Wi-Fi information you will be able to find Wi-Fi API, Wi-Fi
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configuration and also Wi-Fi status. Under API you can check disabled network, disconnect network, enable network, configure
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networks and also the whole connection info. Then under Wi-Fi configuration you've got all currently configured networks and in Wi-Fi
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status, just refresh it, you can check the current status of your network
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This mode also allows you to perform a ping test. To do it just click on run ping test
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And this is it, that would be all, that would be all for this code, let me go back
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And it's time for the third code which is asterisk pound, asterisk pound, 225, pound
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asterisk, pound asterisk. And as you can see here you've got the whole calendar info so if you would like to check
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all upcoming events, smoothly enter this code and here they are. So this mode will help you to remember about all celebrations, anniversaries and so on
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And another code is asterisk pound, asterisk pound, 426, pound asterisk, pound asterisk
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And as you can see you've just entered diagnostic mode, here you can check events and also status
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And if you would like to activate advanced view, just tap on the more icon, select advanced
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view and here it is. So now you've got some further details and the last code for today would be asterisk
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pound, 06 pound. As you can see this is the shortest one and it will provide you with unique numbers assigned
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to your Xiaomi Redmi Note 9 Pro and these are email and serial numbers
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So this is it, tap on OK to go back and that would be all. These are all secret codes that you can use in Xiaomi Redmi Note 9 Pro
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Enjoy and use them as often as you want to and also when only you need to
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