Damaged smd component on the logic board

Hello,

I have a MacBook Pro 13 A1278  Core 2 Duo 2,53Ghz from 2009, logic board EMC 2326.

A few years ago I replaced the wifi board inside the hinge but plugged it’s connector the wrong side so something burnt on the logic board and since the wifi board is not detected.

During a cleaning of the computer yesterday I noticed at least 1 burnt component on the motherboard in an area near the connector for the wifi  cable on the other side of the board.

I searched on the web it seems this smd component is related to the wifi but I’m totally lost in front of all the schematics of the motherboard available online.

Could you help me identify this component?

Are there any other components linked to this one that could be damaged in a such situation?

I have another problem I’m wondering if it may be linked, with this.

When I turn off the mac, it shutdowns then from time to times as soon as I close the lid… it restarts it.

I did a couple of PRAM and SMC reset without success, also reinstalled OSX and even tried with bootcamp.

Thank you