The process of downloading the BTC Dual S801E firmware 1.25b driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the BTC Dual S801E firmware 1.25b driver from the primary server - this is the manufacturer’s BTC 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 BTC Dual S801E firmware 1.25b diver.