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Here I have HTC Desire 12 and let me show you how to enter the HTC function test mode
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So at the very beginning let's start by using the home screen, let's use the phone's dialer
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and let's use the following secret code. Asterix hash, asterix hash, 3424 hash asterix, hash asterix
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As you can see the HTC function test pops up, here you can read the information and
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tap accept if you would like to enter this mode. So here you can run a couple of useful tests for example the audio test, let's click it
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and tap run. Here you've got the instructions
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So if you would like to go next let's use the back key
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Here you've got the receiver test
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If it works normally tap yes. Here you've got the speaker test
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And you can check other things or you can go back. You can also here perform the bluetooth test, charger test, led test, wifi test, vibrator
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For example let me choose the vibrator, let's tap run, tap start and that's it
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Let's go back. You can also select all tests and perform all of them
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You can also choose more and here for example use a couple of useful tricks such as the
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battery test. You can here perform even the factory data reset. You can see the device information, let me check it, let's tap run
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Here you've got the device info. And for example you can enter here the save mode
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Alright, you can also choose about and read this information. And if you would like to quit the following mode let's use the back key a couple of times
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and now you can use your device in a normal way. Thank you for watching, please subscribe our channel and leave a thumbs up under the video
