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Hi everyone, in front of me I've got a Samsung Galaxy A54 and let me share with
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you how to use secret codes on this device. So first of all let's open the dialer as it is the place where we can enter of
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those codes and let me begin with the shortest code but in my personal opinion
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the most interesting one because you can not only have some fun with your device
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but also you can check it so you can check the components if they work fine
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So the code for the testing mode which we will enter is asterisk bound O
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asterisk bound and as I said we are in the testing mode and here we can check
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some components of our device so for example the vibration receiver, touch
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speaker, front cam, the loopback version, grip sensor and so on. Let me show you
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how it works by using the red for example. After tapping on it the red
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color will appear all across the screen and if you can see it everywhere so
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without any missing spots without any black or white dots it means that your
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device works perfectly fine and displays this color in a good way
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The same situation with the green or the blue one. Sorry you've got also the
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option so if you cannot see white dots it works good. In order to get back from
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this from this black kind of mode you have to double your gesture or just
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hello or just press the power button as you can see it do not work when you've
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got the gesture set. You can also pick for example the touch and as you can see
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we've got those rectangles and we have to draw a line all across them. If you
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can see the red color when you are drawing in particular section of the
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rectangles it means that everything is okay. If for some reason you cannot draw
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a line and it did not change the color it simply means that something is
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wrong with this particular section of the screen. So I highly recommend to
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come back to this code and have fun with your device and at the same
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time check it if it works fine. The other code which I'd like to show you is the
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code for the email number and serial number it is asterisk pound 06 pound
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And as you can see thanks to this code we are able to check both email numbers
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and also a serial number. Let's tap on OK and let me show you another code which
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will open the USB settings and the code for it is asterisk pound I don't want to
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make a mistake 0808 pound. And as I said here we've got the USB settings we've
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got two different modes which we can set just up on it and tap on OK to confirm
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Let me show you another code which is I believe the easiest one to remember. It
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will open the firmware version and the code for it is asterisk pound 1234 pound
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And as I said we've got a version so we can check the AP, CP or the model of the
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device. Now let's go back and let me show you another code for the firmware
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version the advanced one it is asterisk pound 2663 pound. And as I said we've
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got much more information about the firmware version we've got some technical info for example about the Wi-Fi and Bluetooth. So let's go back
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and let me show you and the code for the service mode it is the last code it is
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asterisk pound 0011 pound. And here we've got the service mode. So basically
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that's all. This is how to use secret codes in your Samsung Galaxy A54. Thank
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you so much for watching. I hope that this video was helpful and if it was please hit the subscribe button and leave the thumbs up
