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Here I have Samsung Galaxy J7 and let me show you secret codes that works on this device
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At first let's open the fonts dialer and let's input the following secret codes
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Star hash one two three four hash. As you can see the version just pops up
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You can read the following information from your screen. Let's go back and let's input another secret code
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Star hash one two five eight zero star three six nine hash
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As you can see the main version just pops up. Let's go back and let's input star hash seven three five three hash
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And you can perform for example such test as melody, vibration, speaker and some other ones
1:06
Let's go back and let's input star hash zero star hash. And as you can see you can for example choose red screen and check if everything is correct
1:18
You can also tap vibration from the following screen. You can choose speaker
1:31
Let's go back to fonts dialer and let's input star hash zero zero one one hash
1:39
As you can see the service mode just pops up. You can tap more and choose with the following menu
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Let's go back to previous screen and let's input star hash zero two two eight hash
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As you can see the battery status just pops up. You can read such information as battery level or battery block
2:03
Let's go back and let's input star hash zero eight zero eight hash
2:09
As you can see the USB settings just pops up on the screen. You can reuse from the following information and with the following options
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Let's go back and let me show you also one of the most popular Android secret code star
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hash zero eight hash. Excuse me star hash zero six hash. And as you can see the email mode just pops up
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You can read email number and also serial number from the following screen
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To close just tap OK. Thank you for watching. Please subscribe our channel and leave thumbs up under the video
