WiFi Antenna Connector (Golden Circle) missing

Hi Guys,

I took my phone to a veeeery bad repair shop and they messed up more than I can phantom. Anyways, I managed to fix most of the stuff, and the phone is usable again. However, there seems to be a problem with WiFi reception. I replaced the EMI shield (checked for the little ring thingy and all), but WiFi signal was still very poor. So I checked everything step by step - and found what was missing - the golden circle grounding for the WiFi antenna/EMI shield - It's just gone. The guy stole my gold! I mean, c'mon! Really!???

Anyway, I can't find the bastard and ask for my stuff back, but would like to get the WiFi running again, if possible.

Pic is attached of what I am referring to. The board does not seem damaged. Just that golden piece gone. See what I am referring to (in the yellow square)

Can I solder that or something? Or am I just plain doomed?

Thanks in advance for the comments.