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Here I have Xiaomi Redmi 6i and let me show you how to enter the MMI group on the following
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device so let me show you how to get access to the hardware test menu on the following phone
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So at the very beginning let's start by using your home screen. Open the phone's dialer and let's use the following secret code
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Asterix hash, asterix hash, 64, 663, hash asterix, hash asterix
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As you can see the MMI group pops up so here you can test a couple of useful features on
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your device. For example you can perform the auto test, you can check the version of your device, if
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everything is alright let's choose pass. You can see the dual sim card test right here, let me tap fail in my case
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You can also test the battery, the touch panel, light sense, charge, bluetooth, sd card, gps
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speaker, for example let me test the speaker. Let's choose this is the male voice, let me tap pass
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You can test the receiver, let's choose either this is the female voice in english or in chinese
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And you can also test the headset, proximity sensor and other stuff as well
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Here you can also choose the hardware for example to see the hardware information, you
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can also use the manufacturer info and the version of your device
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The email number, serial number, the barcode, so this numbers and other stuff as well
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So that's it, let me go back to quit the test menu and as you can see right now you can
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use your device in a normal way. Thank you for watching, please subscribe our channel and leave thumbs up under the video
