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Here I have Mate 215 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 the home screen, choose here phones dialer
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and let's enter the first secret code, so let me use the asterix hash, asterix hash
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four six, three six, hash asterix, hash asterix. As you can see the testing menu just pops up, here you can navigate by tapping appropriate
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options, you can choose here the phone information when you can find such things as current network
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signal strength or data service, you can also here run a ping test or you can scroll down
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to use other stuff. Now let me go back, here you can also choose the battery information when you've got battery
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status, battery health or for example the battery temperature. Use back key one more time, let me tap usage statistics and as you can see here you can
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read the following information, you can read the last time used or usage time
1:00
Use the back key again and let's tap WiFi information, here you can choose WiFi API
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so right now you can disable network, disconnect network, enable network, get configure networks
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or get connection info or you can also go back to choose WiFi config
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If you have configured networks here you should find the full specification, you can also
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go back and check the WiFi status, here you can also perform the ping test
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That's it, you used the back key a few times, now let me show you how to open the calendar
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info, let's use star hash, star hash, 225, hash star, hash star
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As you can see calendar info just pops up, so you can read a few information about your calendar
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Use the back key one more time and it's time to enter the debug info for Google Play service
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Let's use here the star hash, star hash, 426, hash star, hash star and the Google Play services
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pops up, here you can use the few options and you can read a couple of information
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Use back key and at the end let me check the IMEI info, let's use star hash, 06, hash and
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IMEI number pops up in front of you. Tab OK to close this window and that's it, everything went well, thank you for watching
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