0:00
Here I have Samsung Galaxy J7 2017 and let me show you how to use secret codes on the
0:10
following device. At the very beginning let's start by using your home screen
0:15
Here you have to find and select the phone's dialer right here, let's activate the keypad
0:19
and let's start by checking the version of the phone. So let's input the star pound, 1, 2, 3, 4 and pound
0:29
As you can see the version of the phone just pops up, here you can read the AP, CP, CSC
0:34
number, model number and other stuff. Let's go back and let's check the software and the hardware version, so the main version
0:43
of the phone. Let's type in the star pound, 1, 2, 5, 8, 0, star, 3, 6, 9, pound
0:54
As you can see the main version just pops up, here you can read the AP, CP as it was
0:59
previous and also some other data. Let's go back, this time let me check the test mode, let me open the test mode, let's
1:09
use the star pound, 7, 3, 5, 3, pound. As you can see the test mode just pops up, here you can navigate by tapping appropriate
1:18
options, you can choose melody, you can test vibration, speaker, dimming and other stuff
1:28
such as camera, bluetooth, dot mode, light sensor and other hardware features
1:34
Let's go back by using your back arrow and you may also have access to another testing
1:38
menu, let's use the star pound, 0, star, pound
1:48
And as you can see the following mode pops up, here you can test for example all colors
1:52
of the screen, red, green, blue, you may test the receiver, also the vibration and other
2:00
stuff such as dimming, sensors, speakers, sleep, touch, sub key, front camera, low frequency
2:07
and other stuff as well. Let's go back, let me quit this test mode and this time let me check the service mode
2:15
so let's use the star pound, 0, 0, 1, 1, pound. As you can see service mode just pops up, here you can read the information or choose
2:24
more key in order to for example have some help on use key input
2:30
Let's go back and this time let me open the battery status, so let's use the star pound
2:36
0, 2, 2, 8 and pound. As you can see this is the battery status, you can read the voltage, level, level blocks
2:48
and other stuff as well. Let's go back, this time let me open the USB settings mode, let's use the star pound, 0
2:56
8, 0, 8, pound. As you can see USB settings pops up, here you can change USB settings, change USB mode
3:04
and read what USB settings you are using. Let's go back, let me quit the USB settings mode and this time let me check the email
3:13
number by using the secret code, all you have to do is use the star pound, 0, 6, pound and
3:20
as you can see the email number just pops up, you can also read the serial number and
3:24
use the barcodes to these identifiers. Let's tap OK to close this window and let's go back, now you can use your device
3:33
So that's it, thank you for watching, please subscribe our channel and leave thumbs up
