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Here I have Sony Xperia XZ2 Compact and let me show you how to enter the service mode
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on the following device. So at the very beginning let's start by using your home screen
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Let's use the phone's dialer right here and let's enter the following secret code
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As you can see service menu just pops up, here you can use the service info and you
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can use and get access to the hidden information such as the exact model number, the software
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info, also the simlock and here we've got the network simlock attempts and other stuff
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Let's go back, you can choose the configuration and here for example you can see the root
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status, you can see the factory charging, you can also read the firmware info right
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here and the landmark addresses right here. So that's it, let's go back by using the back key and now let me open the service test
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So this is the really helpful feature, you can perform here lots of hardware tests so
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you can make sure that your device is working correctly. For example you can test the display, all colors of your display, you may also test
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the LED, you can test the speaker, you can also see and test the vibrator and other stuff
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such as the camera, second camera, flashlight, bluetooth, NFC, GPS, the proximity switch
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real time clock, storage, you can verify your certificates, you can see the fingerprint
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test and a couple of more. That's it, here you can also use more key in order to show results or clear memos
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Let's go back, let me quit that service menu and now you may use your device in a normal way
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