Small coil broke from iPhone motherboard (near NFC controller)

I have the error “An update is required to activate your iPhone” after a board reflow (phone fell and the NAND Flash needed to be resoldered.) I am fairly sure that this is a modem issue. While working on the device I noticed that a very very tiny copper coil broke off of the board and it probably needs to be replaced. It is just to the left of the NFC controller. What is it and where can I find a replacement?

I can add more images of my actual board if needed.