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Here I've got Samsung Galaxy A30s and let me show you all the secret codes for the following device
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So at first you have to open the phone the other and then enter the first code which
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is asterix pound two asterix pound two double six three pound. And as you can see here you can come along with firmware version so you can come with
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all details regarding your device and also this mode allows you to perform a refresh
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of your wi-fi. So let me go back this will be all for this code and now we will open some battery information
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and just enter asterix pound zero double to eight pound. And here you've got the battery status in which you can read your current value voltage
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level level block and many other useful information details regarding your battery
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Let's go back the third code is asterix pound two six eight three six six two pound
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And here we are in service mode just upon the more icon and here you can come along
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with key input select you can read some help info check wi-fi and obviously you can go back
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So let me go back this way and then another code which will allow us to open service mode
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is asterix pound double oh double one pound. And as you can see now we are in service mode if you'll click on the more icon you can check
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all the info and also here you can select the stack. Then we can check the firmware version and the code is asterix pound one two three four pound
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And as you can see here you've got detailed version information and another code is asterix
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pound oh asterix pound. It's one of the most useful codes so here you can test your device you can test your
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Samsung Galaxy A30s. Let's start with display test. So just click on red and as you can see it's working properly
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Then green perfect as well. Blue also correct. You can check receiver
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It's working good. Then obviously vibration as you can hear as I can feel and hear it's correct
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Then also you can check mega cam grip sensor sensor touch speaker
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Let me show the speaker test. And it's fine as well. Then you can also test sub key front camera hall i see black which is for display so just
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click here and to switch off this display you have to tap on power key and then also diversion
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So this is it. This would be all for this code. And finally the last one and also very useful code it's asterix pound oh six pound
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And this one will provide you with both email numbers assigned to your device and also with
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unique serial number. So that would be all. These are all secret codes
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Click on OK to go back. Use those codes as often as you want to as you need to check some information test your device
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