Conexant SoftK56 PCI Modem Update (North America) (American English) Modem update for North America to improve connectivity and connection speeds. To install the update Double click the downloaded file and the file self-extraction utility will open up. Click on Ok and the files will be copied to the floppy. A message should appear saying the files were successfully unzipped. Click OK. Locate the file MAC_U211.exe. Double click the file. The Setup Installation utility will start.