What could be the reason for this? I've already tried everything?

So I have a home-built gaming PC and the thing is that it had some problems at the beginning, which I and my friend managed to fix.

Now a new problem has arisen that if I plug in a USB cable and connect my phone as it makes no düdürüm and it appears synonymous no icon that I've connected my phone. I do not think it's a loose contact because loading does it, had recently 29% and then look at it the next time I had 80% so it's not that it could be that it's a loose contact otherwise the phone would not even load,

I've tried it with another USB port, is not synonymous.

So that one thinks that the phone may have a trailer, but it has not because the laptop, I can do anything.

I really have no idea what it could be.

Can you please help me, maybe he has a guess on what it could be.

I'm looking forward to your answer.

You have to make the settings on your mobile phone in such a way that not only charging, but also data traffic may take place. I have to do that every time I plug my phone!

Yes but the laptop is not so

When the USB connection is established, the (Android) mobile phone is asked at least the first time if the connection should be established. - You agree.

The phone (here, for example, Galaxy J6) is then listed under "This PC" in front of the drives. > Double-click on it> Phone> DCIM> Camera> Mark your selected pictures> Copy> Paste the picture files on the PC in the destination folder.

Yes, so who I infect the phone is not asked, not at all, agree or not the vulture knows what the phone or PC asks nothing at all, I just put a USB or a mobile phone in there and the phone just loads and the USB is just not more.

Then try another USB interface.

I'm not stupid… Do you think I have not tried that yet, that would make any normal person… If the connection does not work I tried the other but not.

IT'S NOT ALL

Why do you have to pull the "ALL" out of your nose?
If you already had problems (which?) With the box, put it on again.

Moin, you probably have one of the pins for your USB ports (I suspect the front?) Wrong connected to the motherboard. There comes juice but no connection… So it was with me. Just connect it sensibly and voila.

If that does not help and the problem even with the USB connections behind occur then I'm überfragt.

Yes, I should open my PC and see what's going on

Just try one of the USB ports directly on the motherboard. If they go then I'm right and you have wrong connected front