Samsung A70 dropped - black screen and no data connection via USB

Hi

My girlfriend dropped her Samsung A70 on the hard floor and phone hit the edge. The screen cracked little bit and it is black now. I tried to recover all data from the phone memory but when I connected it to the PC its is not recognized. PC doesn’t even detect that some device was connected. I tried to connect phone via USB to my monitor screen and also via USB - HDMI adapter to TV. It didn’t work.
The phone is fully charged and when I press power button it vibrates. Today morning an alarm clock went off .
I removed back and checked all cables. I reconnected battery and main cable, press power button and phone vibrates as usual.
Does new screen with digitizer help mi to turn my phone on or is there something damaged in the mainboard, USB board …etc?




Regards

Peter