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Here I have Sony Xperia XZ2 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 our home screen. Let's open the fonts dialer and let's use the first secret code
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So in my case let me open the service menu. Let's use asterix hash, asterix hash, 7378, 423, hash asterix, hash asterix
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As you can see service menu just pops up, here we can navigate by tapping appropriate options
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You can choose here the service info and here we can get access to the hidden information
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for example the exact model, the software info, simlog attempts, configuration, factory
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charging information, firmware info and the vlan mag address. If you would like to go back let's use the back key
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Here you can also see the service test and you can perform a couple of hardware tests
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to make sure that your device is performing well. For example you can test your display, all colors of your display
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Let's go back, you can test the speaker and other stuff such as the microphone, vibrator
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camera, flashlight, vlan, gps, compass, the real time clock, storage and a lot of more
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You can also here see the results and clear memos. Alright let's go back by using the back key, let me quit the service menu
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It's time now to open the android testing mode. So let's use asterix hash, asterix hash, 4636, hash asterix, hash asterix
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As you may notice the testing menu just pops up. Here you can choose phone information and you can read a couple of info about your device
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For example the email number, current network, signal strength, voice service. You may also run a ping test or choose more key in order to select radio band, view sim
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address book, view fixed dialing numbers, view service dialing numbers or for example
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enable data connection. Let's go back by using the back key, here you can also choose usage statistics and you
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can read about the application from your device. Here you can get access to the last time used or usage time
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So let's use back key again and choose wifi information, here you've got access to wifi
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api, when you may disable network, disconnect network, enable network, get configured networks
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or simply get connection info. So let's go back and here let's tap wifi configuration
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If you have some configured wifi networks here you should see the full specification
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about them. You can also see here the wifi status and you can see the following results
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You can refresh all stats or run a ping test. Alright, let's go back a couple of times
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Now let me show you how to enter the calendar info. Let's use asterix, hash, asterix, hash, 225, hash asterix, hash asterix
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And if you have some calendar information here you should see the full results, the
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full information. In my case I've got non information in my calendar
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So let's go back. You may also open and enter the debug info for google play service
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So let's use asterix, hash, asterix, hash, 426, hash asterix, hash asterix
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And here you've got google play services information. You can here use ping, connect, disconnect events or status
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Let's use back key and at the end let me show you how to check email info by using the secret code
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So let's use asterix, hash, 06, hash and the email information just pops up
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Let's tap OK to close this window. And basically that's it. Everything went well
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