The process of downloading the Cowon iAUDIO 4 Player Firmware 1.63 US driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Cowon iAUDIO 4 Player Firmware 1.63 US driver from the primary server - this is the manufacturer’s Cowon official website). If the download still fails to run, check whether your anti-virus software is not blocking the connection to the manufacturer server of the Cowon iAUDIO 4 Player Firmware 1.63 US diver.