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Here I have Samsung Galaxy On 7 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 your home screen, let's open the phone's dialer
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right here and let's use the old secret code that works on this device
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So at the very beginning let me check the version of the phone, let's use the asterix
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hash, 1, 2, 3, 4 hash. As you can see the version of the following device just pops up right here, let's go back
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Now you can also check the main version, so the software and the hardware info, let's just
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use the asterix hash, 1, 2, 5, 8, 0, star, 3, 6, 9 hash
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The main version pops up, here you can for example read the AP, CP number, CSC and other stuff
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Let's go back, now it's time to enter the test mode, the first test mode, so let's use
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asterix hash, 7, 3, 5, 3, hash. As you can see the test mode just pops up, here you can navigate by tapping appropriate
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options, you can choose the melody, the vibration, you can also test the speaker, diming and
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other stuff such as the camera, bluetooth, dot mode, jerk mode and a lot of more
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Let's go back, now it's time to enter another testing menu, so let's use the asterix hash
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0, asterix hash and the second testing menu pops up, here you can also navigate by tapping
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appropriate options, you can choose here the colors of the screen, red, green, blue, you
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can test the receiver, vibration, diming, front camera, mega cam, sub key, touch, LED
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black light, low frequency and other stuff. Let's go back again, let me quit this testing menu and this time let me show you how to
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open the service mode, so let's use asterix hash, 0, 0, 1, 1, hash
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As you can see the following service mode just pops up, here you can read the sim information
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you can also choose more key and choose here for example key input if you need something
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Let's go back again, this time let me open the battery status mode, so let's open the
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asterix hash, 0, 2, 2, 8 and hash. Battery mode just pops up, you can read here for example current value, voltage and other stuff
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Let's go back again, this time let me open the USB settings mode, so let's use asterix
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hash, 0, 8, 0, 8, hash. The USB settings mode just pops up right here in front of you
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So let's go back again, at the end let me show you how to check email number by using
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this secret code, so let's use the asterix hash, 0, 6, hash, the email number just pops up
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So let's close the email, that's it, everything went well, thank you for watching, please
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