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Here I have Xiaomi Redmi 4X and let me show you how to use secret code on the following device
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At the very beginning let's start by using the phone's dialer and here let's use the
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following secret code. Asterix pound, asterix pound, six four, six six three, pound asterix, pound asterix
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As you can see the engineering mode just pops up, so here you can use a few stuff, you can
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perform the automatic test and you can test all hardware features of your device
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You can see the single item test, let me tap it. Here for example you can test your receiver, let me tap success
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You can test your speaker, torch, camera and other stuff. Let's go back, here you can also see the test report
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You can also use the software and hardware version info, so here you can check out the
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IMEI number, hardware version and other stuff. You can also see device view if you would like to
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Alright so that's it, if you would like to go back with engineering mode let's use the
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back key. Now it's time to open the Android testing menu, so let's use asterix pound, asterix
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pound, four six, three six, pound asterix, pound asterix. As you can see the testing menu just pops up, here you can navigate by tapping appropriate
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options, so let's here tap the phone information and here you can read the IMEI number, phone
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number, current network, you can run a ping test or you can also use more key in order
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to view sim address book, view fixed dialing numbers or get PDP list
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Use back key again and it's time to open the battery info, so here you can read the battery
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status, battery level, battery health or even the battery temperature. Let's use back key one more time and it's time to open the usage statistics, so here
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you've got the list of all apps from your device and you can read the last time used
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or usage time. That's it, use the back key one more time and check out WiFi information
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Here you can use the WiFi API, it's really important because here you can disable network
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disconnect network, enable network. You may also get configure networks or get connection info
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Use back key again and now let's use the WiFi config, so here you've got configure
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networks of your device if you would like to use them or you can see the WiFi status
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so here you can refresh all stats or run a ping test
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Use back key one more time and as you can see here you can also use the usage statistics
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if you would like to do it again or you can also go back and it's time to open the testing
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menu, so let me use asterix pound, asterix pound, 225 pound asterix, pound asterix
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As you can see here you've got the calendar info, you can read a few information about
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your calendar. You can also go back and here you can enter the debug UI, so let's use asterix pound
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asterix pound, 759 pound asterix, pound asterix. The debug UI just pops up, here you can view clients IDs, you can change OEM mode and read
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other stuff as well. Use back key one more time and it's time to enter the Google Play service, so let's use
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asterix pound, asterix pound, 426 pound asterix, pound asterix and the Google Play service
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is just pops up, this is FCM diagnostics, you can also use this advanced view if you
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would like to. Alright, at the end let me show you how to check the IMEI number by using secret code
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so let's use asterix pound, 06 pound. As you can see the IMEI number just pops up in front of you
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So that's it, everything went well, thank you for watching, please subscribe our channel
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