I was not able to fix it. I tried replacing what I thought was the antenna (mine was marked S-N2) but I purchased and received a part marked S-E4 and it didn't work. When I removed the top part to get to the battery the lead on the left was cracked. I searched and searched for the S-N2 part but no one had it so I had to give up. I finally traded in the S9 for a new phone. Good luck with your efforts and hope you do better than me.