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Here I have Xiaomi Redmi 5A 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, find and select the fonts dialer right here and let's use the first secret code so let's open the test mode
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So at the very beginning let's input the following code asterix hash asterix hash 64663 hash
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asterix hash asterix. As you can see then MMI group test mode pops up, here you can navigate by tapping appropriate
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options for example you can test the version so here you've got the version info
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As you can see my previous results are saved so I was using this test mode in the past
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so I can also test the LCD as you can see all colors of your LCD so in my case let me
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tap also pass, let me test the vibrator, short, long, you may also check out the speaker
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you can test the receiver and other stuff such as the proximity, flashlight, FM, headset
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You can also use here this arrow to check the version of the device, kernel version
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build version, email number, serial number and other stuff, let's go back, you can also
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check out the manufacturer info right here and the hardware information
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Alright let's go back a couple of times, let me quit the test mode and this time let me
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show you how to check out and how to open the Android testing menu so let's use this
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code asterix hash asterix hash 4636 hash asterix hash asterix
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As you can see the testing menu pops up, here you can check out the information, let's
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open the phone info for example, you can read the email number, current network, voice service
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data service, the roaming status, you can run a ping test or choose more key in order
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to view sim address book, view fixed dialing numbers, view service dialing numbers, get
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PDP list or enable data connection. Use a back key a couple of times, you can check out the battery info, here you've got
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such stuff as the battery status, power plug, battery level, battery scale, battery health
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or battery voltage. Use back key again, you can also check out the usage statistics right here and here you've
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got the list of all applications, you can read such stuff as last time used or usage time
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Alright let's use back key again, choose WiFi information, here you've got access to WiFi
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API, when you can disable network, disconnect network, enable network, get configure networks
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or get connection info. You can also go back and choose WiFi config, here you should find all configured networks
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from your device, you may also select the WiFi status when you can refresh or start
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or run a ping test. Use back key a couple of times to quit this Android testing menu and this time let's open
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the calendar menu. So let's enter the asterisk hash, asterisk hash, 225 hash asterisk, hash asterisk
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As you can see calendar info pops up, you can read here information about your events
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Use back key and now let's enter the Google Play services, so let's use asterisk hash
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asterisk hash, 426 hash asterisk, hash asterisk. The Google Play services pops up, you can read here the information about ping, connect
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disconnect and events and also the status. Alright let's use back key again, let's check out the debug UI mode, so let's enter the
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asterisk hash, asterisk hash, 759 hash asterisk, hash asterisk. And debug UI pops up, here you can check the OEM mode, you can see the next alarm, you
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can also view client's IDs right here and use other stuff as well
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Let's go back, at the end let me show you how to check the email number by using the
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secret code, so let's use asterisk hash, 06 hash and the email number just pops up
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Let's tab OK and let's go back. So that's it, everything went well, thank you for watching, please subscribe our channel
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