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Here I have Huawei P20 Lite and let me show you how to use secret codes on the following device
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So at the very beginning let's start by using your home screen. Then let's use the phone's dialer right here and let's enter the first secret code
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So let's use the following one
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So as you can see the project menu just pops up. So this is like the service menu in Huawei
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Here you can navigate by tapping appropriate options. So you can choose for example the background settings
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Here you can see the background debug and you can make it open. You can see USB port settings and use one of the following mode
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You may also for example set UI theme color if you would like to
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Alright let's go back and this time let me show you how to open the venue information
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Here you can read such stuff as version info for example. So let's wait a few seconds the device is processing the information and here for example
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you've got the manufacturer info, kernel version and other stuff. So let's go back
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You can also choose manufacturer info. Here you've got more specified information about your manufacturer and if you would like
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to go back let's also use the back key right here. Let's open the other info and you may read the serial number, audio parameter, run mode
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and other stuff. Let's go back. Let's open the verify key and if you would like to you can input your password right here
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So let's tap cancel. Let's use the back key. You may also check the network information query if you would like to and here for example
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you can check your simlog status. So in my case my simlog is deactivate so let's tap close
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You can also choose vendor country info and you can use the vendor info and the country info
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Let's tap close. Let's use the back key. You can also here choose the software upgrade and you can try to upgrade the software by
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using the SD card. Alright let's go back. You can also choose restore factory
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Let's be careful with that one because this is like the hard reset operation so it will
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erase all personal data from your device. You can also see the battery charge right here and in my case battery level is 47
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Here I have the battery temperature also. Let's go back. Let's use the back key to close the project menu and this time let me open the android
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testing menu of course. So let's use this code asterix hash asterix hash 6130 hash asterix hash asterix
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As you can see testing menu just pops up. Here you can choose phone information
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For example from the first sim card and here you can read the email number, phone number
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current network signal strength. Let's go back. You can also choose usage statistics
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Here you can read the last time used or usage time. Let's go back
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You can also choose wifi information and here you can select the wifi API
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When you can disable network, disconnect network, enable network, get configured networks or
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get connection info. You can also choose wifi config. Here you've got the configured networks of your device
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Let's go back. Here you've got also the wifi status. You can refresh or start or run a ping test
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Let's go back again. And that's it. If you would like to quit the testing menu let's use the back key again
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So let's open the about phone info right now. So let me use the asterix hash asterix hash 0000 hash asterix hash asterix
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And as you can see about phone just pops up right here. Let's use the back key to close this menu
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You can also open the calendar info by using the asterix hash asterix hash 225 hash asterix
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hash asterix. The calendar info just pops up. You can read about the events from your Gmail or from your calendar
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Let's go back. You may also open Google Play service mode by using asterix hash asterix hash 426 hash
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asterix hash asterix. And Google Play services just pops up. Here you can choose ping, connect, disconnect, events or status
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Let's use the back key to quit the Google Play service. And at the end let me show you how to check email number by using the secret code
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So let's use asterix hash 06 hash. And the email number and also the serial number pops up in front of you
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So let's tap OK to close this window. And that's it. That's how you can just show you all secret codes for the Huawei P20 Lite
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