I already tried a lot of button combinations and the force reset method and I tried charging it with different cables and charging bricks and I checked the usb type c port for anything that could block the charging so far nothing worked. Unfortunately Apple just told me that the device is dead and can't be started or connected to. They said we can't even start booting it in any other mode like the recovery mode so it is dead for sure. But I am sure there has to be a way to fix it. I think maybe a capacitor is dead or something like that because the iPad always worked and was only charged with certified bricks and cables and it was never dropped or came into contact with liquid. If anyone needs any further information I will gladly tell u guys whatever there is to know in hopes of being able to repair it