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Here I have Samsung Galaxy S8 and let me show you how to use secret codes on the following device
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So at the very beginning let me use a home screen, let's open the phone's dialer, let's
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activate keypad and let's use the following secret code. At first let me check the version of the device, so let me use star hash, 1, 2, 3, 4, hash
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And the version of the device just pops up. In order to close this window let's press a back key
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Now let's check software and the hardware version, so the main version of the device
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let's use star hash, 1, 2, 5, 8, 0, star, 3, 6, 9, hash
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And as you can see the main version just pops up, so you can read more information about
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your device. Let's go back again and this time let me open the test menu, so let's use star hash, 7
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3, 5, 3, hash. As you can see test menu just pops up, here you can test a couple of features from your
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device, for example the melody, vibration, the speaker, timing, camera, bluetooth, dot
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modes, accelerometer sensor, light sensor and other stuff. Let's go back and let's open another testing menu, let's use star hash, 0, star, hash
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And as you can see the following menu just pops up, so you can test a lot of more features
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for example all colors on the screen, red, green, blue, you can test the receiver, vibration
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as well and such things as LED, the front camera, low frequency, sleep, ficker, sub
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key, touch and other stuff. Let's go back and from the phone's dialer, now let me show you how to open the service
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mode, so let's use star hash, 0, 0, 1, 1, hash. As you can see service mode just pops up, so you can read all important information
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about the service serving cell info. Let me go back, you may also open the battery status, so let's use star hash, 0, 2, 2, 8, hash
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And the battery status just pops up, you can read such things as voltage, battery level
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battery temperature and other stuff. Let's go back and this time let me open the USB settings, so let's use star hash, 0, 8
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0, 8, and hash. And the USB settings just pops up, so you can change the mode of your USB
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Let's go back by using your back arrow and at the end let me show you how to open and
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check the e-mail number and the serial number of this device, let's use star hash, 0, 6
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hash and as you can see the e-mail number and the serial number just pops up
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You can also read the barcodes to this number, let's tap OK to close this
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I hope everything went well, thank you for watching, please subscribe our channel and leave thumbs up under the video
