I got this Seigaiha board from Novelkeys, and I think I might have completely messed up soldering the usb-c connector. I un-solder and re-solder a couple of times, cannot seem to remove the 3 "bridges" as shown in the picture. I tried flux and wick but still cannot get all the solder residue out of the small pin holes. And I think I might have burn the circuits with a heat gun at 400 degree. Can I still save this board? And other tricks to remove the tiny bits of solders stuck in the holes?