u/Firm-Selection8499

Soo my portapack h4m that i really like lately slipped from my hand onto a concrete floor when i was outside on the city. The rf shield has broken off from its solder point, and now when i connect an antenna, i cannot recieve anything. I have a very faint signal when recieving, i cant even hear my local fm station. How do i fix it without making everything break? Im kinda scared when it comes to dissasembling things because i dont want to make my portapack die again after a repair. Also one of the screw thingies fell off so now one screw is kinda loose but i can still unscrew safely.