I made a full video of how to fix this keyboard. You can find it here: https://youtu.be/HRSaTy96Nuw. Also, there's a link in the description where you can find high resolution photos of the membrane and the traces—that should be a big help. And no offense to the original poster—your guide and work is definitely appreciated!—but I don't think super glue is how you should be putting this back together. I showed an alternate, more permanent fix in the video.