My GPS is not working after repair work

Hello all, Galaxy A70 problem here,

My device's GPS is not working after a repair work includes frame, back and screen change. I also need to add that wireless signal reception and bluetooth coverage are also weakened.

I suspect that they couldn't achieve to press a connector or broke a pin to antenna, if even there is a common antenna or pin that contains at least these three.

I need guidance on how I possibly can resolve this.