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Hi everyone, here we've got Xiaomi Redmi Note 9 Pro Max and let me show you how to use secret
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codes on this device. So first of all let's tap on the dialer and tap on the keypad because this is the place
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where we will enter all of those codes and let me begin with the shortest one
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It's asterisk pound, zero six pound. And as you can see by this code we are provided with both e-mail numbers and also a serial
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number attached to this device. Let's tap on OK and let me show you another code which is asterisk pound, asterisk pound
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four six three six, pound asterisk, pound asterisk. And as you can see we are in the testing mode so here we can check some phone and WiFi info
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Now let me explain why we've got duplicated phone information. It is because your device gives you an opportunity to use two totally different SIM cards so
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it means that this phone info will be attached to the very first SIM card and this one will
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be connected with the second SIM card. So now let me show you and as you can see here you can check some info like e-mail
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phone number, data service or data network type. I know that all of the places are empty in my case but no worries
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It is because I do not have my SIM card inside. If you will have your own inserted then you will receive all those info
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After scrolling down we can run ping test just up here and here we've got the results
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and let's tap on more and as you can see here you can also enable data connection or
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view service dialing numbers. Let me get back and let's check the WiFi info
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As you can see here you can check the API configuration or the status
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So let me pick for example the status and as you can see after refreshing stats here
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we can check the network state SSID or network ID. Of course we can run ping test just by tapping here
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Here we've got the results. Let me get back to the dialer because it is all for this code and let me show you another
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one which is asterisk bound, asterisk bound, double to five, bound asterisk, bound asterisk
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And as you can see we are in a calendar info so here we've got all events in one place
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We can check some family events, some holidays in your country or events attached to your mail
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So you've got all the anniversaries right here so you won't forget about any of them
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Let me get back and let me show you another code which is asterisk bound, asterisk bound
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four to six, bound asterisk, bound asterisk. And here we are in a diagnostic mode
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We can check some events and also the status. What's more we can show advanced view just by tapping on the three dots icon and tapping
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on advanced view. If you want to check some further details just tap on the status and here we've got
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much more info just like for example all stored connections and the network type
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Let me get back to the dialer and let me show you the longest code which is also the last one
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It's asterisk bound, asterisk bound, six four, double six three, bound asterisk, bound asterisk
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And as you can see we are let's say in a testing mode. Here we've got the all components of our device and we can check them
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So we can check the keyboard, the vibrator, display receiver, headset test, the light
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sensor, OTG, GPS, battery indicator and actually a lot of a lot of things which we can check
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And let me show you for example how to do it with a touch sensor
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So simply tap on the thing you want to check and as you can see here we have to draw the
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lines in this empty spaces in order to check if our device and all of the corners and edges
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of it are working perfectly fine. As you can see it worked
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Now we can attach the screen to begin the test of the screen
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So let's tap on it and if you can see the red color all across the screen without any
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missing spots then it means that the color works fine. Let's tap on it and the same situation with green it is working and the blue
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Let's tap on it. And if you think that the screen test has been completed just tap on pass
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Let me get back now and as you can see it is marked on this list that those components
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just passed the test. So actually that's all. This is how to use secret codes in your Xiaomi Redmi Note 9 Pro Max
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Thank you so much for watching. I hope that this video was helpful and if it was please hit the subscribe button and
